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netdata/collectors/cgroups.plugin/sys_fs_cgroup.c

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// SPDX-License-Identifier: GPL-3.0-or-later
#include "sys_fs_cgroup.h"
#define PLUGIN_CGROUPS_NAME "cgroups.plugin"
#define PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME "systemd"
#define PLUGIN_CGROUPS_MODULE_CGROUPS_NAME "/sys/fs/cgroup"
// main cgroups thread worker jobs
#define WORKER_CGROUPS_LOCK 0
#define WORKER_CGROUPS_READ 1
#define WORKER_CGROUPS_CHART 2
// discovery cgroup thread worker jobs
#define WORKER_DISCOVERY_INIT 0
#define WORKER_DISCOVERY_FIND 1
#define WORKER_DISCOVERY_PROCESS 2
#define WORKER_DISCOVERY_PROCESS_RENAME 3
#define WORKER_DISCOVERY_PROCESS_NETWORK 4
#define WORKER_DISCOVERY_PROCESS_FIRST_TIME 5
#define WORKER_DISCOVERY_UPDATE 6
#define WORKER_DISCOVERY_CLEANUP 7
#define WORKER_DISCOVERY_COPY 8
#define WORKER_DISCOVERY_SHARE 9
#define WORKER_DISCOVERY_LOCK 10
#if WORKER_UTILIZATION_MAX_JOB_TYPES < 11
#error WORKER_UTILIZATION_MAX_JOB_TYPES has to be at least 11
#endif
// ----------------------------------------------------------------------------
// cgroup globals
static int is_inside_k8s = 0;
static long system_page_size = 4096; // system will be queried via sysconf() in configuration()
static int cgroup_enable_cpuacct_stat = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_cpuacct_usage = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_cpuacct_cpu_throttling = CONFIG_BOOLEAN_YES;
static int cgroup_enable_cpuacct_cpu_shares = CONFIG_BOOLEAN_NO;
static int cgroup_enable_memory = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_detailed_memory = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_memory_failcnt = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_swap = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_blkio_io = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_blkio_ops = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_blkio_throttle_io = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_blkio_throttle_ops = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_blkio_merged_ops = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_blkio_queued_ops = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_pressure_cpu = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_pressure_io_some = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_pressure_io_full = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_pressure_memory_some = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_pressure_memory_full = CONFIG_BOOLEAN_AUTO;
static int cgroup_enable_systemd_services = CONFIG_BOOLEAN_YES;
static int cgroup_enable_systemd_services_detailed_memory = CONFIG_BOOLEAN_NO;
static int cgroup_used_memory = CONFIG_BOOLEAN_YES;
static int cgroup_use_unified_cgroups = CONFIG_BOOLEAN_NO;
static int cgroup_unified_exist = CONFIG_BOOLEAN_AUTO;
static int cgroup_search_in_devices = 1;
static int cgroup_check_for_new_every = 10;
static int cgroup_update_every = 1;
static int cgroup_containers_chart_priority = NETDATA_CHART_PRIO_CGROUPS_CONTAINERS;
static int cgroup_recheck_zero_blkio_every_iterations = 10;
static int cgroup_recheck_zero_mem_failcnt_every_iterations = 10;
static int cgroup_recheck_zero_mem_detailed_every_iterations = 10;
static char *cgroup_cpuacct_base = NULL;
static char *cgroup_cpuset_base = NULL;
static char *cgroup_blkio_base = NULL;
static char *cgroup_memory_base = NULL;
static char *cgroup_devices_base = NULL;
static char *cgroup_unified_base = NULL;
static int cgroup_root_count = 0;
static int cgroup_root_max = 1000;
static int cgroup_max_depth = 0;
static SIMPLE_PATTERN *enabled_cgroup_paths = NULL;
static SIMPLE_PATTERN *enabled_cgroup_names = NULL;
static SIMPLE_PATTERN *search_cgroup_paths = NULL;
static SIMPLE_PATTERN *enabled_cgroup_renames = NULL;
static SIMPLE_PATTERN *systemd_services_cgroups = NULL;
static SIMPLE_PATTERN *entrypoint_parent_process_comm = NULL;
static char *cgroups_rename_script = NULL;
static char *cgroups_network_interface_script = NULL;
static int cgroups_check = 0;
static uint32_t Read_hash = 0;
static uint32_t Write_hash = 0;
static uint32_t user_hash = 0;
static uint32_t system_hash = 0;
static uint32_t user_usec_hash = 0;
static uint32_t system_usec_hash = 0;
static uint32_t nr_periods_hash = 0;
static uint32_t nr_throttled_hash = 0;
static uint32_t throttled_time_hash = 0;
static uint32_t throttled_usec_hash = 0;
enum cgroups_type { CGROUPS_AUTODETECT_FAIL, CGROUPS_V1, CGROUPS_V2 };
enum cgroups_systemd_setting {
SYSTEMD_CGROUP_ERR,
SYSTEMD_CGROUP_LEGACY,
SYSTEMD_CGROUP_HYBRID,
SYSTEMD_CGROUP_UNIFIED
};
struct cgroups_systemd_config_setting {
char *name;
enum cgroups_systemd_setting setting;
};
static struct cgroups_systemd_config_setting cgroups_systemd_options[] = {
{ .name = "legacy", .setting = SYSTEMD_CGROUP_LEGACY },
{ .name = "hybrid", .setting = SYSTEMD_CGROUP_HYBRID },
{ .name = "unified", .setting = SYSTEMD_CGROUP_UNIFIED },
{ .name = NULL, .setting = SYSTEMD_CGROUP_ERR },
};
// Shared memory with information from detected cgroups
netdata_ebpf_cgroup_shm_t shm_cgroup_ebpf = {NULL, NULL};
static int shm_fd_cgroup_ebpf = -1;
sem_t *shm_mutex_cgroup_ebpf = SEM_FAILED;
/* on Fed systemd is not in PATH for some reason */
#define SYSTEMD_CMD_RHEL "/usr/lib/systemd/systemd --version"
#define SYSTEMD_HIERARCHY_STRING "default-hierarchy="
#define MAXSIZE_PROC_CMDLINE 4096
static enum cgroups_systemd_setting cgroups_detect_systemd(const char *exec)
{
pid_t command_pid;
enum cgroups_systemd_setting retval = SYSTEMD_CGROUP_ERR;
char buf[MAXSIZE_PROC_CMDLINE];
char *begin, *end;
FILE *f = mypopen(exec, &command_pid);
if (!f)
return retval;
fd_set rfds;
struct timeval timeout;
int fd = fileno(f);
int ret = -1;
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
timeout.tv_sec = 3;
timeout.tv_usec = 0;
if (fd != -1) {
ret = select(fd + 1, &rfds, NULL, NULL, &timeout);
}
if (ret == -1) {
error("Failed to get the output of \"%s\"", exec);
} else if (ret == 0) {
info("Cannot get the output of \"%s\" within %"PRId64" seconds", exec, (int64_t)timeout.tv_sec);
} else {
while (fgets(buf, MAXSIZE_PROC_CMDLINE, f) != NULL) {
if ((begin = strstr(buf, SYSTEMD_HIERARCHY_STRING))) {
end = begin = begin + strlen(SYSTEMD_HIERARCHY_STRING);
if (!*begin)
break;
while (isalpha(*end))
end++;
*end = 0;
for (int i = 0; cgroups_systemd_options[i].name; i++) {
if (!strcmp(begin, cgroups_systemd_options[i].name)) {
retval = cgroups_systemd_options[i].setting;
break;
}
}
break;
}
}
}
if (mypclose(f, command_pid))
return SYSTEMD_CGROUP_ERR;
return retval;
}
static enum cgroups_type cgroups_try_detect_version()
{
pid_t command_pid;
char buf[MAXSIZE_PROC_CMDLINE];
enum cgroups_systemd_setting systemd_setting;
int cgroups2_available = 0;
// 1. check if cgroups2 available on system at all
FILE *f = mypopen("grep cgroup /proc/filesystems", &command_pid);
if (!f) {
error("popen failed");
return CGROUPS_AUTODETECT_FAIL;
}
while (fgets(buf, MAXSIZE_PROC_CMDLINE, f) != NULL) {
if (strstr(buf, "cgroup2")) {
cgroups2_available = 1;
break;
}
}
if(mypclose(f, command_pid))
return CGROUPS_AUTODETECT_FAIL;
if(!cgroups2_available)
return CGROUPS_V1;
#if defined CGROUP2_SUPER_MAGIC
// 2. check filesystem type for the default mountpoint
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/fs/cgroup");
struct statfs fsinfo;
if (!statfs(filename, &fsinfo)) {
if (fsinfo.f_type == CGROUP2_SUPER_MAGIC)
return CGROUPS_V2;
}
#endif
// 3. check systemd compiletime setting
if ((systemd_setting = cgroups_detect_systemd("systemd --version")) == SYSTEMD_CGROUP_ERR)
systemd_setting = cgroups_detect_systemd(SYSTEMD_CMD_RHEL);
if(systemd_setting == SYSTEMD_CGROUP_ERR)
return CGROUPS_AUTODETECT_FAIL;
if(systemd_setting == SYSTEMD_CGROUP_LEGACY || systemd_setting == SYSTEMD_CGROUP_HYBRID) {
// currently we prefer V1 if HYBRID is set as it seems to be more feature complete
// in the future we might want to continue here if SYSTEMD_CGROUP_HYBRID
// and go ahead with V2
return CGROUPS_V1;
}
// 4. if we are unified as on Fedora (default cgroups2 only mode)
// check kernel command line flag that can override that setting
f = fopen("/proc/cmdline", "r");
if (!f) {
error("Error reading kernel boot commandline parameters");
return CGROUPS_AUTODETECT_FAIL;
}
if (!fgets(buf, MAXSIZE_PROC_CMDLINE, f)) {
error("couldn't read all cmdline params into buffer");
fclose(f);
return CGROUPS_AUTODETECT_FAIL;
}
fclose(f);
if (strstr(buf, "systemd.unified_cgroup_hierarchy=0")) {
info("cgroups v2 (unified cgroups) is available but are disabled on this system.");
return CGROUPS_V1;
}
return CGROUPS_V2;
}
void set_cgroup_base_path(char *filename, char *path) {
if (strncmp(netdata_configured_host_prefix, path, strlen(netdata_configured_host_prefix)) == 0) {
snprintfz(filename, FILENAME_MAX, "%s", path);
} else {
snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, path);
}
}
void read_cgroup_plugin_configuration() {
system_page_size = sysconf(_SC_PAGESIZE);
Read_hash = simple_hash("Read");
Write_hash = simple_hash("Write");
user_hash = simple_hash("user");
system_hash = simple_hash("system");
user_usec_hash = simple_hash("user_usec");
system_usec_hash = simple_hash("system_usec");
nr_periods_hash = simple_hash("nr_periods");
nr_throttled_hash = simple_hash("nr_throttled");
throttled_time_hash = simple_hash("throttled_time");
throttled_usec_hash = simple_hash("throttled_usec");
cgroup_update_every = (int)config_get_number("plugin:cgroups", "update every", localhost->rrd_update_every);
if(cgroup_update_every < localhost->rrd_update_every)
cgroup_update_every = localhost->rrd_update_every;
cgroup_check_for_new_every = (int)config_get_number("plugin:cgroups", "check for new cgroups every", (long long)cgroup_check_for_new_every * (long long)cgroup_update_every);
if(cgroup_check_for_new_every < cgroup_update_every)
cgroup_check_for_new_every = cgroup_update_every;
cgroup_use_unified_cgroups = config_get_boolean_ondemand("plugin:cgroups", "use unified cgroups", CONFIG_BOOLEAN_AUTO);
if(cgroup_use_unified_cgroups == CONFIG_BOOLEAN_AUTO)
cgroup_use_unified_cgroups = (cgroups_try_detect_version() == CGROUPS_V2);
info("use unified cgroups %s", cgroup_use_unified_cgroups ? "true" : "false");
cgroup_containers_chart_priority = (int)config_get_number("plugin:cgroups", "containers priority", cgroup_containers_chart_priority);
if(cgroup_containers_chart_priority < 1)
cgroup_containers_chart_priority = NETDATA_CHART_PRIO_CGROUPS_CONTAINERS;
cgroup_enable_cpuacct_stat = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct stat (total CPU)", cgroup_enable_cpuacct_stat);
cgroup_enable_cpuacct_usage = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct usage (per core CPU)", cgroup_enable_cpuacct_usage);
cgroup_enable_cpuacct_cpu_throttling = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct cpu throttling", cgroup_enable_cpuacct_cpu_throttling);
cgroup_enable_cpuacct_cpu_shares = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct cpu shares", cgroup_enable_cpuacct_cpu_shares);
cgroup_enable_memory = config_get_boolean_ondemand("plugin:cgroups", "enable memory", cgroup_enable_memory);
cgroup_enable_detailed_memory = config_get_boolean_ondemand("plugin:cgroups", "enable detailed memory", cgroup_enable_detailed_memory);
cgroup_enable_memory_failcnt = config_get_boolean_ondemand("plugin:cgroups", "enable memory limits fail count", cgroup_enable_memory_failcnt);
cgroup_enable_swap = config_get_boolean_ondemand("plugin:cgroups", "enable swap memory", cgroup_enable_swap);
cgroup_enable_blkio_io = config_get_boolean_ondemand("plugin:cgroups", "enable blkio bandwidth", cgroup_enable_blkio_io);
cgroup_enable_blkio_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio operations", cgroup_enable_blkio_ops);
cgroup_enable_blkio_throttle_io = config_get_boolean_ondemand("plugin:cgroups", "enable blkio throttle bandwidth", cgroup_enable_blkio_throttle_io);
cgroup_enable_blkio_throttle_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio throttle operations", cgroup_enable_blkio_throttle_ops);
cgroup_enable_blkio_queued_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio queued operations", cgroup_enable_blkio_queued_ops);
cgroup_enable_blkio_merged_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio merged operations", cgroup_enable_blkio_merged_ops);
cgroup_enable_pressure_cpu = config_get_boolean_ondemand("plugin:cgroups", "enable cpu pressure", cgroup_enable_pressure_cpu);
cgroup_enable_pressure_io_some = config_get_boolean_ondemand("plugin:cgroups", "enable io some pressure", cgroup_enable_pressure_io_some);
cgroup_enable_pressure_io_full = config_get_boolean_ondemand("plugin:cgroups", "enable io full pressure", cgroup_enable_pressure_io_full);
cgroup_enable_pressure_memory_some = config_get_boolean_ondemand("plugin:cgroups", "enable memory some pressure", cgroup_enable_pressure_memory_some);
cgroup_enable_pressure_memory_full = config_get_boolean_ondemand("plugin:cgroups", "enable memory full pressure", cgroup_enable_pressure_memory_full);
cgroup_recheck_zero_blkio_every_iterations = (int)config_get_number("plugin:cgroups", "recheck zero blkio every iterations", cgroup_recheck_zero_blkio_every_iterations);
cgroup_recheck_zero_mem_failcnt_every_iterations = (int)config_get_number("plugin:cgroups", "recheck zero memory failcnt every iterations", cgroup_recheck_zero_mem_failcnt_every_iterations);
cgroup_recheck_zero_mem_detailed_every_iterations = (int)config_get_number("plugin:cgroups", "recheck zero detailed memory every iterations", cgroup_recheck_zero_mem_detailed_every_iterations);
cgroup_enable_systemd_services = config_get_boolean("plugin:cgroups", "enable systemd services", cgroup_enable_systemd_services);
cgroup_enable_systemd_services_detailed_memory = config_get_boolean("plugin:cgroups", "enable systemd services detailed memory", cgroup_enable_systemd_services_detailed_memory);
cgroup_used_memory = config_get_boolean("plugin:cgroups", "report used memory", cgroup_used_memory);
char filename[FILENAME_MAX + 1], *s;
struct mountinfo *mi, *root = mountinfo_read(0);
if(!cgroup_use_unified_cgroups) {
// cgroup v1 does not have pressure metrics
cgroup_enable_pressure_cpu =
cgroup_enable_pressure_io_some =
cgroup_enable_pressure_io_full =
cgroup_enable_pressure_memory_some =
cgroup_enable_pressure_memory_full = CONFIG_BOOLEAN_NO;
mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuacct");
if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuacct");
if(!mi) {
error("CGROUP: cannot find cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct");
s = "/sys/fs/cgroup/cpuacct";
}
else s = mi->mount_point;
set_cgroup_base_path(filename, s);
cgroup_cpuacct_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuacct", filename);
mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuset");
if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuset");
if(!mi) {
error("CGROUP: cannot find cpuset mountinfo. Assuming default: /sys/fs/cgroup/cpuset");
s = "/sys/fs/cgroup/cpuset";
}
else s = mi->mount_point;
set_cgroup_base_path(filename, s);
cgroup_cpuset_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuset", filename);
mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "blkio");
if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "blkio");
if(!mi) {
error("CGROUP: cannot find blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio");
s = "/sys/fs/cgroup/blkio";
}
else s = mi->mount_point;
set_cgroup_base_path(filename, s);
cgroup_blkio_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/blkio", filename);
mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "memory");
if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "memory");
if(!mi) {
error("CGROUP: cannot find memory mountinfo. Assuming default: /sys/fs/cgroup/memory");
s = "/sys/fs/cgroup/memory";
}
else s = mi->mount_point;
set_cgroup_base_path(filename, s);
cgroup_memory_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/memory", filename);
mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "devices");
if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "devices");
if(!mi) {
error("CGROUP: cannot find devices mountinfo. Assuming default: /sys/fs/cgroup/devices");
s = "/sys/fs/cgroup/devices";
}
else s = mi->mount_point;
set_cgroup_base_path(filename, s);
cgroup_devices_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/devices", filename);
}
else {
//cgroup_enable_cpuacct_stat =
cgroup_enable_cpuacct_usage =
//cgroup_enable_memory =
//cgroup_enable_detailed_memory =
cgroup_enable_memory_failcnt =
//cgroup_enable_swap =
//cgroup_enable_blkio_io =
//cgroup_enable_blkio_ops =
cgroup_enable_blkio_throttle_io =
cgroup_enable_blkio_throttle_ops =
cgroup_enable_blkio_merged_ops =
cgroup_enable_blkio_queued_ops = CONFIG_BOOLEAN_NO;
cgroup_search_in_devices = 0;
cgroup_enable_systemd_services_detailed_memory = CONFIG_BOOLEAN_NO;
cgroup_used_memory = CONFIG_BOOLEAN_NO; //unified cgroups use different values
//TODO: can there be more than 1 cgroup2 mount point?
mi = mountinfo_find_by_filesystem_super_option(root, "cgroup2", "rw"); //there is no cgroup2 specific super option - for now use 'rw' option
if(mi) debug(D_CGROUP, "found unified cgroup root using super options, with path: '%s'", mi->mount_point);
if(!mi) {
mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup2", "cgroup");
if(mi) debug(D_CGROUP, "found unified cgroup root using mountsource info, with path: '%s'", mi->mount_point);
}
if(!mi) {
error("CGROUP: cannot find cgroup2 mountinfo. Assuming default: /sys/fs/cgroup");
s = "/sys/fs/cgroup";
}
else s = mi->mount_point;
set_cgroup_base_path(filename, s);
cgroup_unified_base = config_get("plugin:cgroups", "path to unified cgroups", filename);
debug(D_CGROUP, "using cgroup root: '%s'", cgroup_unified_base);
}
cgroup_root_max = (int)config_get_number("plugin:cgroups", "max cgroups to allow", cgroup_root_max);
cgroup_max_depth = (int)config_get_number("plugin:cgroups", "max cgroups depth to monitor", cgroup_max_depth);
enabled_cgroup_paths = simple_pattern_create(
config_get("plugin:cgroups", "enable by default cgroups matching",
// ----------------------------------------------------------------
" !*/init.scope " // ignore init.scope
" !/system.slice/run-*.scope " // ignore system.slice/run-XXXX.scope
" *.scope " // we need all other *.scope for sure
// ----------------------------------------------------------------
" /machine.slice/*.service " // #3367 systemd-nspawn
" /kubepods/pod*/* " // k8s containers
" /kubepods/*/pod*/* " // k8s containers
// ----------------------------------------------------------------
" !/kubepods* " // all other k8s cgroups
" !*/vcpu* " // libvirtd adds these sub-cgroups
" !*/emulator " // libvirtd adds these sub-cgroups
" !*.mount "
" !*.partition "
" !*.service "
" !*.socket "
" !*.slice "
" !*.swap "
" !*.user "
" !/ "
" !/docker "
" !*/libvirt "
" !/lxc "
" !/lxc/*/* " // #1397 #2649
" !/lxc.monitor* "
" !/lxc.pivot "
" !/lxc.payload "
" !/machine "
" !/qemu "
" !/system "
" !/systemd "
" !/user "
" * " // enable anything else
), NULL, SIMPLE_PATTERN_EXACT);
enabled_cgroup_names = simple_pattern_create(
config_get("plugin:cgroups", "enable by default cgroups names matching",
" * "
), NULL, SIMPLE_PATTERN_EXACT);
search_cgroup_paths = simple_pattern_create(
config_get("plugin:cgroups", "search for cgroups in subpaths matching",
" !*/init.scope " // ignore init.scope
" !*-qemu " // #345
" !*.libvirt-qemu " // #3010
" !/init.scope "
" !/system "
" !/systemd "
" !/user "
" !/user.slice "
" !/lxc/*/* " // #2161 #2649
" !/lxc.monitor "
" !/lxc.payload/*/* "
" !/lxc.payload.* "
" * "
), NULL, SIMPLE_PATTERN_EXACT);
snprintfz(filename, FILENAME_MAX, "%s/cgroup-name.sh", netdata_configured_primary_plugins_dir);
cgroups_rename_script = config_get("plugin:cgroups", "script to get cgroup names", filename);
snprintfz(filename, FILENAME_MAX, "%s/cgroup-network", netdata_configured_primary_plugins_dir);
cgroups_network_interface_script = config_get("plugin:cgroups", "script to get cgroup network interfaces", filename);
enabled_cgroup_renames = simple_pattern_create(
config_get("plugin:cgroups", "run script to rename cgroups matching",
" !/ "
" !*.mount "
" !*.socket "
" !*.partition "
" /machine.slice/*.service " // #3367 systemd-nspawn
" !*.service "
" !*.slice "
" !*.swap "
" !*.user "
" !init.scope "
" !*.scope/vcpu* " // libvirtd adds these sub-cgroups
" !*.scope/emulator " // libvirtd adds these sub-cgroups
" *.scope "
" *docker* "
" *lxc* "
" *qemu* "
" /kubepods/pod*/* " // k8s containers
" /kubepods/*/pod*/* " // k8s containers
" !/kubepods* " // all other k8s cgroups
" *.libvirt-qemu " // #3010
" * "
), NULL, SIMPLE_PATTERN_EXACT);
if(cgroup_enable_systemd_services) {
systemd_services_cgroups = simple_pattern_create(
config_get("plugin:cgroups", "cgroups to match as systemd services",
" !/system.slice/*/*.service "
" /system.slice/*.service "
), NULL, SIMPLE_PATTERN_EXACT);
}
mountinfo_free_all(root);
}
void netdata_cgroup_ebpf_set_values(size_t length)
{
sem_wait(shm_mutex_cgroup_ebpf);
shm_cgroup_ebpf.header->cgroup_max = cgroup_root_max;
shm_cgroup_ebpf.header->systemd_enabled = cgroup_enable_systemd_services |
cgroup_enable_systemd_services_detailed_memory |
cgroup_used_memory;
shm_cgroup_ebpf.header->body_length = length;
sem_post(shm_mutex_cgroup_ebpf);
}
void netdata_cgroup_ebpf_initialize_shm()
{
shm_fd_cgroup_ebpf = shm_open(NETDATA_SHARED_MEMORY_EBPF_CGROUP_NAME, O_CREAT | O_RDWR, 0660);
if (shm_fd_cgroup_ebpf < 0) {
error("Cannot initialize shared memory used by cgroup and eBPF, integration won't happen.");
return;
}
size_t length = sizeof(netdata_ebpf_cgroup_shm_header_t) + cgroup_root_max * sizeof(netdata_ebpf_cgroup_shm_body_t);
if (ftruncate(shm_fd_cgroup_ebpf, length)) {
error("Cannot set size for shared memory.");
goto end_init_shm;
}
shm_cgroup_ebpf.header = (netdata_ebpf_cgroup_shm_header_t *) mmap(NULL, length,
PROT_READ | PROT_WRITE, MAP_SHARED,
shm_fd_cgroup_ebpf, 0);
if (!shm_cgroup_ebpf.header) {
error("Cannot map shared memory used between cgroup and eBPF, integration won't happen");
goto end_init_shm;
}
shm_cgroup_ebpf.body = (netdata_ebpf_cgroup_shm_body_t *) ((char *)shm_cgroup_ebpf.header +
sizeof(netdata_ebpf_cgroup_shm_header_t));
shm_mutex_cgroup_ebpf = sem_open(NETDATA_NAMED_SEMAPHORE_EBPF_CGROUP_NAME, O_CREAT,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, 1);
if (shm_mutex_cgroup_ebpf != SEM_FAILED) {
netdata_cgroup_ebpf_set_values(length);
return;
}
error("Cannot create semaphore, integration between eBPF and cgroup won't happen");
munmap(shm_cgroup_ebpf.header, length);
end_init_shm:
close(shm_fd_cgroup_ebpf);
shm_fd_cgroup_ebpf = -1;
shm_unlink(NETDATA_SHARED_MEMORY_EBPF_CGROUP_NAME);
}
// ----------------------------------------------------------------------------
// cgroup objects
struct blkio {
int updated;
int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO
int delay_counter;
char *filename;
unsigned long long Read;
unsigned long long Write;
/*
unsigned long long Sync;
unsigned long long Async;
unsigned long long Total;
*/
};
// https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt
struct memory {
ARL_BASE *arl_base;
ARL_ENTRY *arl_dirty;
ARL_ENTRY *arl_swap;
int updated_detailed;
int updated_usage_in_bytes;
int updated_msw_usage_in_bytes;
int updated_failcnt;
int enabled_detailed; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO
int enabled_usage_in_bytes; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO
int enabled_msw_usage_in_bytes; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO
int enabled_failcnt; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO
int delay_counter_detailed;
int delay_counter_failcnt;
char *filename_detailed;
char *filename_usage_in_bytes;
char *filename_msw_usage_in_bytes;
char *filename_failcnt;
int detailed_has_dirty;
int detailed_has_swap;
// detailed metrics
/*
unsigned long long cache;
unsigned long long rss;
unsigned long long rss_huge;
unsigned long long mapped_file;
unsigned long long writeback;
unsigned long long dirty;
unsigned long long swap;
unsigned long long pgpgin;
unsigned long long pgpgout;
unsigned long long pgfault;
unsigned long long pgmajfault;
unsigned long long inactive_anon;
unsigned long long active_anon;
unsigned long long inactive_file;
unsigned long long active_file;
unsigned long long unevictable;
unsigned long long hierarchical_memory_limit;
*/
//unified cgroups metrics
unsigned long long anon;
unsigned long long kernel_stack;
unsigned long long slab;
unsigned long long sock;
unsigned long long shmem;
unsigned long long anon_thp;
//unsigned long long file_writeback;
//unsigned long long file_dirty;
//unsigned long long file;
unsigned long long total_cache;
unsigned long long total_rss;
unsigned long long total_rss_huge;
unsigned long long total_mapped_file;
unsigned long long total_writeback;
unsigned long long total_dirty;
unsigned long long total_swap;
unsigned long long total_pgpgin;
unsigned long long total_pgpgout;
unsigned long long total_pgfault;
unsigned long long total_pgmajfault;
/*
unsigned long long total_inactive_anon;
unsigned long long total_active_anon;
*/
unsigned long long total_inactive_file;
/*
unsigned long long total_active_file;
unsigned long long total_unevictable;
*/
// single file metrics
unsigned long long usage_in_bytes;
unsigned long long msw_usage_in_bytes;
unsigned long long failcnt;
};
// https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
struct cpuacct_stat {
int updated;
int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO
char *filename;
unsigned long long user; // v1, v2(user_usec)
unsigned long long system; // v1, v2(system_usec)
};
// https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt
struct cpuacct_usage {
int updated;
int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO
char *filename;
unsigned int cpus;
unsigned long long *cpu_percpu;
};
// represents cpuacct/cpu.stat, for v2 'cpuacct_stat' is used for 'user_usec', 'system_usec'
struct cpuacct_cpu_throttling {
int updated;
int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO
char *filename;
unsigned long long nr_periods;
unsigned long long nr_throttled;
unsigned long long throttled_time;
unsigned long long nr_throttled_perc;
};
// https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/resource_management_guide/sec-cpu#sect-cfs
// https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/managing_monitoring_and_updating_the_kernel/using-cgroups-v2-to-control-distribution-of-cpu-time-for-applications_managing-monitoring-and-updating-the-kernel#proc_controlling-distribution-of-cpu-time-for-applications-by-adjusting-cpu-weight_using-cgroups-v2-to-control-distribution-of-cpu-time-for-applications
struct cpuacct_cpu_shares {
int updated;
int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO
char *filename;
unsigned long long shares;
};
struct cgroup_network_interface {
const char *host_device;
const char *container_device;
struct cgroup_network_interface *next;
};
// *** WARNING *** The fields are not thread safe. Take care of safe usage.
struct cgroup {
uint32_t options;
int first_time_seen; // first time seen by the discoverer
int processed; // the discoverer is done processing a cgroup (resolved name, set 'enabled' option)
char available; // found in the filesystem
char enabled; // enabled in the config
char pending_renames;
char *intermediate_id; // TODO: remove it when the renaming script is fixed
char *id;
uint32_t hash;
char *chart_id;
uint32_t hash_chart;
char *chart_title;
DICTIONARY *chart_labels;
struct cpuacct_stat cpuacct_stat;
struct cpuacct_usage cpuacct_usage;
struct cpuacct_cpu_throttling cpuacct_cpu_throttling;
struct cpuacct_cpu_shares cpuacct_cpu_shares;
struct memory memory;
struct blkio io_service_bytes; // bytes
struct blkio io_serviced; // operations
struct blkio throttle_io_service_bytes; // bytes
struct blkio throttle_io_serviced; // operations
struct blkio io_merged; // operations
struct blkio io_queued; // operations
struct cgroup_network_interface *interfaces;
struct pressure cpu_pressure;
struct pressure io_pressure;
struct pressure memory_pressure;
// per cgroup charts
RRDSET *st_cpu;
RRDSET *st_cpu_limit;
RRDSET *st_cpu_per_core;
RRDSET *st_cpu_nr_throttled;
RRDSET *st_cpu_throttled_time;
RRDSET *st_cpu_shares;
RRDSET *st_mem;
RRDSET *st_mem_utilization;
RRDSET *st_writeback;
RRDSET *st_mem_activity;
RRDSET *st_pgfaults;
RRDSET *st_mem_usage;
RRDSET *st_mem_usage_limit;
RRDSET *st_mem_failcnt;
RRDSET *st_io;
RRDSET *st_serviced_ops;
RRDSET *st_throttle_io;
RRDSET *st_throttle_serviced_ops;
RRDSET *st_queued_ops;
RRDSET *st_merged_ops;
// per cgroup chart variables
char *filename_cpuset_cpus;
unsigned long long cpuset_cpus;
char *filename_cpu_cfs_period;
unsigned long long cpu_cfs_period;
char *filename_cpu_cfs_quota;
unsigned long long cpu_cfs_quota;
RRDSETVAR *chart_var_cpu_limit;
NETDATA_DOUBLE prev_cpu_usage;
char *filename_memory_limit;
unsigned long long memory_limit;
RRDSETVAR *chart_var_memory_limit;
char *filename_memoryswap_limit;
unsigned long long memoryswap_limit;
RRDSETVAR *chart_var_memoryswap_limit;
// services
RRDDIM *rd_cpu;
RRDDIM *rd_mem_usage;
RRDDIM *rd_mem_failcnt;
RRDDIM *rd_swap_usage;
RRDDIM *rd_mem_detailed_cache;
RRDDIM *rd_mem_detailed_rss;
RRDDIM *rd_mem_detailed_mapped;
RRDDIM *rd_mem_detailed_writeback;
RRDDIM *rd_mem_detailed_pgpgin;
RRDDIM *rd_mem_detailed_pgpgout;
RRDDIM *rd_mem_detailed_pgfault;
RRDDIM *rd_mem_detailed_pgmajfault;
RRDDIM *rd_io_service_bytes_read;
RRDDIM *rd_io_serviced_read;
RRDDIM *rd_throttle_io_read;
RRDDIM *rd_throttle_io_serviced_read;
RRDDIM *rd_io_queued_read;
RRDDIM *rd_io_merged_read;
RRDDIM *rd_io_service_bytes_write;
RRDDIM *rd_io_serviced_write;
RRDDIM *rd_throttle_io_write;
RRDDIM *rd_throttle_io_serviced_write;
RRDDIM *rd_io_queued_write;
RRDDIM *rd_io_merged_write;
struct cgroup *next;
struct cgroup *discovered_next;
} *cgroup_root = NULL;
uv_mutex_t cgroup_root_mutex;
struct cgroup *discovered_cgroup_root = NULL;
struct discovery_thread {
uv_thread_t thread;
uv_mutex_t mutex;
uv_cond_t cond_var;
int start_discovery;
int exited;
} discovery_thread;
// ---------------------------------------------------------------------------------------------
static inline int matches_enabled_cgroup_paths(char *id) {
return simple_pattern_matches(enabled_cgroup_paths, id);
}
static inline int matches_enabled_cgroup_names(char *name) {
return simple_pattern_matches(enabled_cgroup_names, name);
}
static inline int matches_enabled_cgroup_renames(char *id) {
return simple_pattern_matches(enabled_cgroup_renames, id);
}
static inline int matches_systemd_services_cgroups(char *id) {
return simple_pattern_matches(systemd_services_cgroups, id);
}
static inline int matches_search_cgroup_paths(const char *dir) {
return simple_pattern_matches(search_cgroup_paths, dir);
}
static inline int matches_entrypoint_parent_process_comm(const char *comm) {
return simple_pattern_matches(entrypoint_parent_process_comm, comm);
}
static inline int is_cgroup_systemd_service(struct cgroup *cg) {
return (cg->options & CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE);
}
// ---------------------------------------------------------------------------------------------
static int k8s_is_container(const char *id) {
// examples:
// https://github.com/netdata/netdata/blob/0fc101679dcd12f1cb8acdd07bb4c85d8e553e53/collectors/cgroups.plugin/cgroup-name.sh#L121-L147
const char *p = id;
const char *pp = NULL;
int i = 0;
size_t l = 3; // pod
while ((p = strstr(p, "pod"))) {
i++;
p += l;
pp = p;
}
return !(i < 2 || !pp || !(pp = strchr(pp, '/')) || !pp++ || !*pp);
}
#define TASK_COMM_LEN 16
static int k8s_get_container_first_proc_comm(const char *id, char *comm) {
if (!k8s_is_container(id)) {
return 1;
}
static procfile *ff = NULL;
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/%s/cgroup.procs", cgroup_cpuacct_base, id);
ff = procfile_reopen(ff, filename, NULL, PROCFILE_FLAG_DEFAULT);
if (unlikely(!ff)) {
debug(D_CGROUP, "CGROUP: k8s_is_pause_container(): cannot open file '%s'.", filename);
return 1;
}
ff = procfile_readall(ff);
if (unlikely(!ff)) {
debug(D_CGROUP, "CGROUP: k8s_is_pause_container(): cannot read file '%s'.", filename);
return 1;
}
unsigned long lines = procfile_lines(ff);
if (likely(lines < 2)) {
return 1;
}
char *pid = procfile_lineword(ff, 0, 0);
if (!pid || !*pid) {
return 1;
}
snprintfz(filename, FILENAME_MAX, "%s/proc/%s/comm", netdata_configured_host_prefix, pid);
ff = procfile_reopen(ff, filename, NULL, PROCFILE_FLAG_DEFAULT);
if (unlikely(!ff)) {
debug(D_CGROUP, "CGROUP: k8s_is_pause_container(): cannot open file '%s'.", filename);
return 1;
}
ff = procfile_readall(ff);
if (unlikely(!ff)) {
debug(D_CGROUP, "CGROUP: k8s_is_pause_container(): cannot read file '%s'.", filename);
return 1;
}
lines = procfile_lines(ff);
if (unlikely(lines != 2)) {
return 1;
}
char *proc_comm = procfile_lineword(ff, 0, 0);
if (!proc_comm || !*proc_comm) {
return 1;
}
strncpyz(comm, proc_comm, TASK_COMM_LEN);
return 0;
}
// ---------------------------------------------------------------------------------------------
static unsigned long long calc_delta(unsigned long long curr, unsigned long long prev) {
if (prev > curr) {
return 0;
}
return curr - prev;
}
static unsigned long long calc_percentage(unsigned long long value, unsigned long long total) {
if (total == 0) {
return 0;
}
return (NETDATA_DOUBLE)value / (NETDATA_DOUBLE)total * 100;
}
static int calc_cgroup_depth(const char *id) {
int depth = 0;
const char *s;
for (s = id; *s; s++) {
depth += unlikely(*s == '/');
}
return depth;
}
// ----------------------------------------------------------------------------
// read values from /sys
static inline void cgroup_read_cpuacct_stat(struct cpuacct_stat *cp) {
static procfile *ff = NULL;
if(likely(cp->filename)) {
ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT);
if(unlikely(!ff)) {
cp->updated = 0;
cgroups_check = 1;
return;
}
ff = procfile_readall(ff);
if(unlikely(!ff)) {
cp->updated = 0;
cgroups_check = 1;
return;
}
unsigned long i, lines = procfile_lines(ff);
if(unlikely(lines < 1)) {
error("CGROUP: file '%s' should have 1+ lines.", cp->filename);
cp->updated = 0;
return;
}
for(i = 0; i < lines ; i++) {
char *s = procfile_lineword(ff, i, 0);
uint32_t hash = simple_hash(s);
if(unlikely(hash == user_hash && !strcmp(s, "user")))
cp->user = str2ull(procfile_lineword(ff, i, 1));
else if(unlikely(hash == system_hash && !strcmp(s, "system")))
cp->system = str2ull(procfile_lineword(ff, i, 1));
}
cp->updated = 1;
if(unlikely(cp->enabled == CONFIG_BOOLEAN_AUTO &&
(cp->user || cp->system || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)))
cp->enabled = CONFIG_BOOLEAN_YES;
}
}
static inline void cgroup_read_cpuacct_cpu_stat(struct cpuacct_cpu_throttling *cp) {
if (unlikely(!cp->filename)) {
return;
}
static procfile *ff = NULL;
ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT);
if (unlikely(!ff)) {
cp->updated = 0;
cgroups_check = 1;
return;
}
ff = procfile_readall(ff);
if (unlikely(!ff)) {
cp->updated = 0;
cgroups_check = 1;
return;
}
unsigned long lines = procfile_lines(ff);
if (unlikely(lines < 3)) {
error("CGROUP: file '%s' should have 3 lines.", cp->filename);
cp->updated = 0;
return;
}
unsigned long long nr_periods_last = cp->nr_periods;
unsigned long long nr_throttled_last = cp->nr_throttled;
for (unsigned long i = 0; i < lines; i++) {
char *s = procfile_lineword(ff, i, 0);
uint32_t hash = simple_hash(s);
if (unlikely(hash == nr_periods_hash && !strcmp(s, "nr_periods"))) {
cp->nr_periods = str2ull(procfile_lineword(ff, i, 1));
} else if (unlikely(hash == nr_throttled_hash && !strcmp(s, "nr_throttled"))) {
cp->nr_throttled = str2ull(procfile_lineword(ff, i, 1));
} else if (unlikely(hash == throttled_time_hash && !strcmp(s, "throttled_time"))) {
cp->throttled_time = str2ull(procfile_lineword(ff, i, 1));
}
}
cp->nr_throttled_perc =
calc_percentage(calc_delta(cp->nr_throttled, nr_throttled_last), calc_delta(cp->nr_periods, nr_periods_last));
cp->updated = 1;
if (unlikely(cp->enabled == CONFIG_BOOLEAN_AUTO)) {
if (likely(
cp->nr_periods || cp->nr_throttled || cp->throttled_time ||
netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) {
cp->enabled = CONFIG_BOOLEAN_YES;
}
}
}
static inline void cgroup2_read_cpuacct_cpu_stat(struct cpuacct_stat *cp, struct cpuacct_cpu_throttling *cpt) {
static procfile *ff = NULL;
if (unlikely(!cp->filename)) {
return;
}
ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT);
if (unlikely(!ff)) {
cp->updated = 0;
cgroups_check = 1;
return;
}
ff = procfile_readall(ff);
if (unlikely(!ff)) {
cp->updated = 0;
cgroups_check = 1;
return;
}
unsigned long lines = procfile_lines(ff);
if (unlikely(lines < 3)) {
error("CGROUP: file '%s' should have at least 3 lines.", cp->filename);
cp->updated = 0;
return;
}
unsigned long long nr_periods_last = cpt->nr_periods;
unsigned long long nr_throttled_last = cpt->nr_throttled;
for (unsigned long i = 0; i < lines; i++) {
char *s = procfile_lineword(ff, i, 0);
uint32_t hash = simple_hash(s);
if (unlikely(hash == user_usec_hash && !strcmp(s, "user_usec"))) {
cp->user = str2ull(procfile_lineword(ff, i, 1));
} else if (unlikely(hash == system_usec_hash && !strcmp(s, "system_usec"))) {
cp->system = str2ull(procfile_lineword(ff, i, 1));
} else if (unlikely(hash == nr_periods_hash && !strcmp(s, "nr_periods"))) {
cpt->nr_periods = str2ull(procfile_lineword(ff, i, 1));
} else if (unlikely(hash == nr_throttled_hash && !strcmp(s, "nr_throttled"))) {
cpt->nr_throttled = str2ull(procfile_lineword(ff, i, 1));
} else if (unlikely(hash == throttled_usec_hash && !strcmp(s, "throttled_usec"))) {
cpt->throttled_time = str2ull(procfile_lineword(ff, i, 1)) * 1000; // usec -> ns
}
}
cpt->nr_throttled_perc =
calc_percentage(calc_delta(cpt->nr_throttled, nr_throttled_last), calc_delta(cpt->nr_periods, nr_periods_last));
cp->updated = 1;
cpt->updated = 1;
if (unlikely(cp->enabled == CONFIG_BOOLEAN_AUTO)) {
if (likely(cp->user || cp->system || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) {
cp->enabled = CONFIG_BOOLEAN_YES;
}
}
if (unlikely(cpt->enabled == CONFIG_BOOLEAN_AUTO)) {
if (likely(
cpt->nr_periods || cpt->nr_throttled || cpt->throttled_time ||
netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) {
cpt->enabled = CONFIG_BOOLEAN_YES;
}
}
}
static inline void cgroup_read_cpuacct_cpu_shares(struct cpuacct_cpu_shares *cp) {
if (unlikely(!cp->filename)) {
return;
}
if (unlikely(read_single_number_file(cp->filename, &cp->shares))) {
cp->updated = 0;
cgroups_check = 1;
return;
}
cp->updated = 1;
if (unlikely((cp->enabled == CONFIG_BOOLEAN_AUTO)) &&
(cp->shares || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) {
cp->enabled = CONFIG_BOOLEAN_YES;
}
}
static inline void cgroup_read_cpuacct_usage(struct cpuacct_usage *ca) {
static procfile *ff = NULL;
if(likely(ca->filename)) {
ff = procfile_reopen(ff, ca->filename, NULL, PROCFILE_FLAG_DEFAULT);
if(unlikely(!ff)) {
ca->updated = 0;
cgroups_check = 1;
return;
}
ff = procfile_readall(ff);
if(unlikely(!ff)) {
ca->updated = 0;
cgroups_check = 1;
return;
}
if(unlikely(procfile_lines(ff) < 1)) {
error("CGROUP: file '%s' should have 1+ lines but has %zu.", ca->filename, procfile_lines(ff));
ca->updated = 0;
return;
}
unsigned long i = procfile_linewords(ff, 0);
if(unlikely(i == 0)) {
ca->updated = 0;
return;
}
// we may have 1 more CPU reported
while(i > 0) {
char *s = procfile_lineword(ff, 0, i - 1);
if(!*s) i--;
else break;
}
if(unlikely(i != ca->cpus)) {
freez(ca->cpu_percpu);
ca->cpu_percpu = mallocz(sizeof(unsigned long long) * i);
ca->cpus = (unsigned int)i;
}
unsigned long long total = 0;
for(i = 0; i < ca->cpus ;i++) {
unsigned long long n = str2ull(procfile_lineword(ff, 0, i));
ca->cpu_percpu[i] = n;
total += n;
}
ca->updated = 1;
if(unlikely(ca->enabled == CONFIG_BOOLEAN_AUTO &&
(total || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)))
ca->enabled = CONFIG_BOOLEAN_YES;
}
}
static inline void cgroup_read_blkio(struct blkio *io) {
if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO && io->delay_counter > 0)) {
io->delay_counter--;
return;
}
if(likely(io->filename)) {
static procfile *ff = NULL;
ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT);
if(unlikely(!ff)) {
io->updated = 0;
cgroups_check = 1;
return;
}
ff = procfile_readall(ff);
if(unlikely(!ff)) {
io->updated = 0;
cgroups_check = 1;
return;
}
unsigned long i, lines = procfile_lines(ff);
if(unlikely(lines < 1)) {
error("CGROUP: file '%s' should have 1+ lines.", io->filename);
io->updated = 0;
return;
}
io->Read = 0;
io->Write = 0;
/*
io->Sync = 0;
io->Async = 0;
io->Total = 0;
*/
for(i = 0; i < lines ; i++) {
char *s = procfile_lineword(ff, i, 1);
uint32_t hash = simple_hash(s);
if(unlikely(hash == Read_hash && !strcmp(s, "Read")))
io->Read += str2ull(procfile_lineword(ff, i, 2));
else if(unlikely(hash == Write_hash && !strcmp(s, "Write")))
io->Write += str2ull(procfile_lineword(ff, i, 2));
/*
else if(unlikely(hash == Sync_hash && !strcmp(s, "Sync")))
io->Sync += str2ull(procfile_lineword(ff, i, 2));
else if(unlikely(hash == Async_hash && !strcmp(s, "Async")))
io->Async += str2ull(procfile_lineword(ff, i, 2));
else if(unlikely(hash == Total_hash && !strcmp(s, "Total")))
io->Total += str2ull(procfile_lineword(ff, i, 2));
*/
}
io->updated = 1;
if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO)) {
if(unlikely(io->Read || io->Write || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))
io->enabled = CONFIG_BOOLEAN_YES;
else
io->delay_counter = cgroup_recheck_zero_blkio_every_iterations;
}
}
}
static inline void cgroup2_read_blkio(struct blkio *io, unsigned int word_offset) {
if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO && io->delay_counter > 0)) {
io->delay_counter--;
return;
}
if(likely(io->filename)) {
static procfile *ff = NULL;
ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT);
if(unlikely(!ff)) {
io->updated = 0;
cgroups_check = 1;
return;
}
ff = procfile_readall(ff);
if(unlikely(!ff)) {
io->updated = 0;
cgroups_check = 1;
return;
}
unsigned long i, lines = procfile_lines(ff);
if (unlikely(lines < 1)) {
error("CGROUP: file '%s' should have 1+ lines.", io->filename);
io->updated = 0;
return;
}
io->Read = 0;
io->Write = 0;
for (i = 0; i < lines; i++) {
io->Read += str2ull(procfile_lineword(ff, i, 2 + word_offset));
io->Write += str2ull(procfile_lineword(ff, i, 4 + word_offset));
}
io->updated = 1;
if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO)) {
if(unlikely(io->Read || io->Write || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))
io->enabled = CONFIG_BOOLEAN_YES;
else
io->delay_counter = cgroup_recheck_zero_blkio_every_iterations;
}
}
}
static inline void cgroup2_read_pressure(struct pressure *res) {
static procfile *ff = NULL;
if (likely(res->filename)) {
ff = procfile_reopen(ff, res->filename, " =", PROCFILE_FLAG_DEFAULT);
if (unlikely(!ff)) {
res->updated = 0;
cgroups_check = 1;
return;
}
ff = procfile_readall(ff);
if (unlikely(!ff)) {
res->updated = 0;
cgroups_check = 1;
return;
}
size_t lines = procfile_lines(ff);
if (lines < 1) {
error("CGROUP: file '%s' should have 1+ lines.", res->filename);
res->updated = 0;
return;
}
res->some.share_time.value10 = strtod(procfile_lineword(ff, 0, 2), NULL);
res->some.share_time.value60 = strtod(procfile_lineword(ff, 0, 4), NULL);
res->some.share_time.value300 = strtod(procfile_lineword(ff, 0, 6), NULL);
res->some.total_time.value_total = str2ull(procfile_lineword(ff, 0, 8)) / 1000; // us->ms
if (lines > 2) {
res->full.share_time.value10 = strtod(procfile_lineword(ff, 1, 2), NULL);
res->full.share_time.value60 = strtod(procfile_lineword(ff, 1, 4), NULL);
res->full.share_time.value300 = strtod(procfile_lineword(ff, 1, 6), NULL);
res->full.total_time.value_total = str2ull(procfile_lineword(ff, 0, 8)) / 1000; // us->ms
}
res->updated = 1;
if (unlikely(res->some.enabled == CONFIG_BOOLEAN_AUTO)) {
res->some.enabled = CONFIG_BOOLEAN_YES;
if (lines > 2) {
res->full.enabled = CONFIG_BOOLEAN_YES;
} else {
res->full.enabled = CONFIG_BOOLEAN_NO;
}
}
}
}
static inline void cgroup_read_memory(struct memory *mem, char parent_cg_is_unified) {
static procfile *ff = NULL;
// read detailed ram usage
if(likely(mem->filename_detailed)) {
if(unlikely(mem->enabled_detailed == CONFIG_BOOLEAN_AUTO && mem->delay_counter_detailed > 0)) {
mem->delay_counter_detailed--;
goto memory_next;
}
ff = procfile_reopen(ff, mem->filename_detailed, NULL, PROCFILE_FLAG_DEFAULT);
if(unlikely(!ff)) {
mem->updated_detailed = 0;
cgroups_check = 1;
goto memory_next;
}
ff = procfile_readall(ff);
if(unlikely(!ff)) {
mem->updated_detailed = 0;
cgroups_check = 1;
goto memory_next;
}
unsigned long i, lines = procfile_lines(ff);
if(unlikely(lines < 1)) {
error("CGROUP: file '%s' should have 1+ lines.", mem->filename_detailed);
mem->updated_detailed = 0;
goto memory_next;
}
if(unlikely(!mem->arl_base)) {
if(parent_cg_is_unified == 0){
mem->arl_base = arl_create("cgroup/memory", NULL, 60);
arl_expect(mem->arl_base, "total_cache", &mem->total_cache);
arl_expect(mem->arl_base, "total_rss", &mem->total_rss);
arl_expect(mem->arl_base, "total_rss_huge", &mem->total_rss_huge);
arl_expect(mem->arl_base, "total_mapped_file", &mem->total_mapped_file);
arl_expect(mem->arl_base, "total_writeback", &mem->total_writeback);
mem->arl_dirty = arl_expect(mem->arl_base, "total_dirty", &mem->total_dirty);
mem->arl_swap = arl_expect(mem->arl_base, "total_swap", &mem->total_swap);
arl_expect(mem->arl_base, "total_pgpgin", &mem->total_pgpgin);
arl_expect(mem->arl_base, "total_pgpgout", &mem->total_pgpgout);
arl_expect(mem->arl_base, "total_pgfault", &mem->total_pgfault);
arl_expect(mem->arl_base, "total_pgmajfault", &mem->total_pgmajfault);
arl_expect(mem->arl_base, "total_inactive_file", &mem->total_inactive_file);
} else {
mem->arl_base = arl_create("cgroup/memory", NULL, 60);
arl_expect(mem->arl_base, "anon", &mem->anon);
arl_expect(mem->arl_base, "kernel_stack", &mem->kernel_stack);
arl_expect(mem->arl_base, "slab", &mem->slab);
arl_expect(mem->arl_base, "sock", &mem->sock);
arl_expect(mem->arl_base, "anon_thp", &mem->anon_thp);
arl_expect(mem->arl_base, "file", &mem->total_mapped_file);
arl_expect(mem->arl_base, "file_writeback", &mem->total_writeback);
mem->arl_dirty = arl_expect(mem->arl_base, "file_dirty", &mem->total_dirty);
arl_expect(mem->arl_base, "pgfault", &mem->total_pgfault);
arl_expect(mem->arl_base, "pgmajfault", &mem->total_pgmajfault);
arl_expect(mem->arl_base, "inactive_file", &mem->total_inactive_file);
}
}
arl_begin(mem->arl_base);
for(i = 0; i < lines ; i++) {
if(arl_check(mem->arl_base,
procfile_lineword(ff, i, 0),
procfile_lineword(ff, i, 1))) break;
}
if(unlikely(mem->arl_dirty->flags & ARL_ENTRY_FLAG_FOUND))
mem->detailed_has_dirty = 1;
if(unlikely(parent_cg_is_unified == 0 && mem->arl_swap->flags & ARL_ENTRY_FLAG_FOUND))
mem->detailed_has_swap = 1;
// fprintf(stderr, "READ: '%s', cache: %llu, rss: %llu, rss_huge: %llu, mapped_file: %llu, writeback: %llu, dirty: %llu, swap: %llu, pgpgin: %llu, pgpgout: %llu, pgfault: %llu, pgmajfault: %llu, inactive_anon: %llu, active_anon: %llu, inactive_file: %llu, active_file: %llu, unevictable: %llu, hierarchical_memory_limit: %llu, total_cache: %llu, total_rss: %llu, total_rss_huge: %llu, total_mapped_file: %llu, total_writeback: %llu, total_dirty: %llu, total_swap: %llu, total_pgpgin: %llu, total_pgpgout: %llu, total_pgfault: %llu, total_pgmajfault: %llu, total_inactive_anon: %llu, total_active_anon: %llu, total_inactive_file: %llu, total_active_file: %llu, total_unevictable: %llu\n", mem->filename, mem->cache, mem->rss, mem->rss_huge, mem->mapped_file, mem->writeback, mem->dirty, mem->swap, mem->pgpgin, mem->pgpgout, mem->pgfault, mem->pgmajfault, mem->inactive_anon, mem->active_anon, mem->inactive_file, mem->active_file, mem->unevictable, mem->hierarchical_memory_limit, mem->total_cache, mem->total_rss, mem->total_rss_huge, mem->total_mapped_file, mem->total_writeback, mem->total_dirty, mem->total_swap, mem->total_pgpgin, mem->total_pgpgout, mem->total_pgfault, mem->total_pgmajfault, mem->total_inactive_anon, mem->total_active_anon, mem->total_inactive_file, mem->total_active_file, mem->total_unevictable);
mem->updated_detailed = 1;
if(unlikely(mem->enabled_detailed == CONFIG_BOOLEAN_AUTO)) {
if(( (!parent_cg_is_unified) && ( mem->total_cache || mem->total_dirty || mem->total_rss || mem->total_rss_huge || mem->total_mapped_file || mem->total_writeback
|| mem->total_swap || mem->total_pgpgin || mem->total_pgpgout || mem->total_pgfault || mem->total_pgmajfault || mem->total_inactive_file))
|| (parent_cg_is_unified && ( mem->anon || mem->total_dirty || mem->kernel_stack || mem->slab || mem->sock || mem->total_writeback
|| mem->anon_thp || mem->total_pgfault || mem->total_pgmajfault || mem->total_inactive_file))
|| netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)
mem->enabled_detailed = CONFIG_BOOLEAN_YES;
else
mem->delay_counter_detailed = cgroup_recheck_zero_mem_detailed_every_iterations;
}
}
memory_next:
// read usage_in_bytes
if(likely(mem->filename_usage_in_bytes)) {
mem->updated_usage_in_bytes = !read_single_number_file(mem->filename_usage_in_bytes, &mem->usage_in_bytes);
if(unlikely(mem->updated_usage_in_bytes && mem->enabled_usage_in_bytes == CONFIG_BOOLEAN_AUTO &&
(mem->usage_in_bytes || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)))
mem->enabled_usage_in_bytes = CONFIG_BOOLEAN_YES;
}
if (likely(mem->updated_usage_in_bytes && mem->updated_detailed)) {
mem->usage_in_bytes =
(mem->usage_in_bytes > mem->total_inactive_file) ? (mem->usage_in_bytes - mem->total_inactive_file) : 0;
}
// read msw_usage_in_bytes
if(likely(mem->filename_msw_usage_in_bytes)) {
mem->updated_msw_usage_in_bytes = !read_single_number_file(mem->filename_msw_usage_in_bytes, &mem->msw_usage_in_bytes);
if(unlikely(mem->updated_msw_usage_in_bytes && mem->enabled_msw_usage_in_bytes == CONFIG_BOOLEAN_AUTO &&
(mem->msw_usage_in_bytes || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)))
mem->enabled_msw_usage_in_bytes = CONFIG_BOOLEAN_YES;
}
// read failcnt
if(likely(mem->filename_failcnt)) {
if(unlikely(mem->enabled_failcnt == CONFIG_BOOLEAN_AUTO && mem->delay_counter_failcnt > 0)) {
mem->updated_failcnt = 0;
mem->delay_counter_failcnt--;
}
else {
mem->updated_failcnt = !read_single_number_file(mem->filename_failcnt, &mem->failcnt);
if(unlikely(mem->updated_failcnt && mem->enabled_failcnt == CONFIG_BOOLEAN_AUTO)) {
if(unlikely(mem->failcnt || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))
mem->enabled_failcnt = CONFIG_BOOLEAN_YES;
else
mem->delay_counter_failcnt = cgroup_recheck_zero_mem_failcnt_every_iterations;
}
}
}
}
static inline void read_cgroup(struct cgroup *cg) {
debug(D_CGROUP, "reading metrics for cgroups '%s'", cg->id);
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
cgroup_read_cpuacct_stat(&cg->cpuacct_stat);
cgroup_read_cpuacct_usage(&cg->cpuacct_usage);
cgroup_read_cpuacct_cpu_stat(&cg->cpuacct_cpu_throttling);
cgroup_read_cpuacct_cpu_shares(&cg->cpuacct_cpu_shares);
cgroup_read_memory(&cg->memory, 0);
cgroup_read_blkio(&cg->io_service_bytes);
cgroup_read_blkio(&cg->io_serviced);
cgroup_read_blkio(&cg->throttle_io_service_bytes);
cgroup_read_blkio(&cg->throttle_io_serviced);
cgroup_read_blkio(&cg->io_merged);
cgroup_read_blkio(&cg->io_queued);
}
else {
//TODO: io_service_bytes and io_serviced use same file merge into 1 function
cgroup2_read_blkio(&cg->io_service_bytes, 0);
cgroup2_read_blkio(&cg->io_serviced, 4);
cgroup2_read_cpuacct_cpu_stat(&cg->cpuacct_stat, &cg->cpuacct_cpu_throttling);
cgroup_read_cpuacct_cpu_shares(&cg->cpuacct_cpu_shares);
cgroup2_read_pressure(&cg->cpu_pressure);
cgroup2_read_pressure(&cg->io_pressure);
cgroup2_read_pressure(&cg->memory_pressure);
cgroup_read_memory(&cg->memory, 1);
}
}
static inline void read_all_discovered_cgroups(struct cgroup *root) {
debug(D_CGROUP, "reading metrics for all cgroups");
struct cgroup *cg;
for (cg = root; cg; cg = cg->next) {
if (cg->enabled && !cg->pending_renames) {
read_cgroup(cg);
}
}
}
// ----------------------------------------------------------------------------
// cgroup network interfaces
#define CGROUP_NETWORK_INTERFACE_MAX_LINE 2048
static inline void read_cgroup_network_interfaces(struct cgroup *cg) {
debug(D_CGROUP, "looking for the network interfaces of cgroup '%s' with chart id '%s' and title '%s'", cg->id, cg->chart_id, cg->chart_title);
pid_t cgroup_pid;
char cgroup_identifier[CGROUP_NETWORK_INTERFACE_MAX_LINE + 1];
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
snprintfz(cgroup_identifier, CGROUP_NETWORK_INTERFACE_MAX_LINE, "%s%s", cgroup_cpuacct_base, cg->id);
}
else {
snprintfz(cgroup_identifier, CGROUP_NETWORK_INTERFACE_MAX_LINE, "%s%s", cgroup_unified_base, cg->id);
}
debug(D_CGROUP, "executing cgroup_identifier %s --cgroup '%s' for cgroup '%s'", cgroups_network_interface_script, cgroup_identifier, cg->id);
FILE *fp;
(void)mypopen_raw_default_flags_and_environment(&cgroup_pid, &fp, cgroups_network_interface_script, "--cgroup", cgroup_identifier);
if(!fp) {
error("CGROUP: cannot popen(%s --cgroup \"%s\", \"r\").", cgroups_network_interface_script, cgroup_identifier);
return;
}
char *s;
char buffer[CGROUP_NETWORK_INTERFACE_MAX_LINE + 1];
while((s = fgets(buffer, CGROUP_NETWORK_INTERFACE_MAX_LINE, fp))) {
trim(s);
if(*s && *s != '\n') {
char *t = s;
while(*t && *t != ' ') t++;
if(*t == ' ') {
*t = '\0';
t++;
}
if(!*s) {
error("CGROUP: empty host interface returned by script");
continue;
}
if(!*t) {
error("CGROUP: empty guest interface returned by script");
continue;
}
struct cgroup_network_interface *i = callocz(1, sizeof(struct cgroup_network_interface));
i->host_device = strdupz(s);
i->container_device = strdupz(t);
i->next = cg->interfaces;
cg->interfaces = i;
info("CGROUP: cgroup '%s' has network interface '%s' as '%s'", cg->id, i->host_device, i->container_device);
// register a device rename to proc_net_dev.c
netdev_rename_device_add(i->host_device, i->container_device, cg->chart_id, cg->chart_labels);
}
}
mypclose(fp, cgroup_pid);
// debug(D_CGROUP, "closed cgroup_identifier for cgroup '%s'", cg->id);
}
static inline void free_cgroup_network_interfaces(struct cgroup *cg) {
while(cg->interfaces) {
struct cgroup_network_interface *i = cg->interfaces;
cg->interfaces = i->next;
// delete the registration of proc_net_dev rename
netdev_rename_device_del(i->host_device);
freez((void *)i->host_device);
freez((void *)i->container_device);
freez((void *)i);
}
}
// ----------------------------------------------------------------------------
// add/remove/find cgroup objects
#define CGROUP_CHARTID_LINE_MAX 1024
static inline char *cgroup_title_strdupz(const char *s) {
if(!s || !*s) s = "/";
if(*s == '/' && s[1] != '\0') s++;
char *r = strdupz(s);
netdata_fix_chart_name(r);
return r;
}
static inline char *cgroup_chart_id_strdupz(const char *s) {
if(!s || !*s) s = "/";
if(*s == '/' && s[1] != '\0') s++;
char *r = strdupz(s);
netdata_fix_chart_id(r);
return r;
}
// TODO: move the code to cgroup_chart_id_strdupz() when the renaming script is fixed
static inline void substitute_dots_in_id(char *s) {
// dots are used to distinguish chart type and id in streaming, so we should replace them
for (char *d = s; *d; d++) {
if (*d == '.')
*d = '-';
}
}
// ----------------------------------------------------------------------------
// parse k8s labels
char *k8s_parse_resolved_name_and_labels(DICTIONARY *labels, char *data) {
// the first word, up to the first space is the name
char *name = mystrsep(&data, " ");
// the rest are key=value pairs separated by comma
while(data) {
char *pair = mystrsep(&data, ",");
rrdlabels_add_pair(labels, pair, RRDLABEL_SRC_AUTO| RRDLABEL_SRC_K8S);
}
return name;
}
// ----------------------------------------------------------------------------
static inline void free_pressure(struct pressure *res) {
if (res->some.share_time.st) rrdset_is_obsolete(res->some.share_time.st);
if (res->some.total_time.st) rrdset_is_obsolete(res->some.total_time.st);
if (res->full.share_time.st) rrdset_is_obsolete(res->full.share_time.st);
if (res->full.total_time.st) rrdset_is_obsolete(res->full.total_time.st);
freez(res->filename);
}
static inline void cgroup_free(struct cgroup *cg) {
debug(D_CGROUP, "Removing cgroup '%s' with chart id '%s' (was %s and %s)", cg->id, cg->chart_id, (cg->enabled)?"enabled":"disabled", (cg->available)?"available":"not available");
if(cg->st_cpu) rrdset_is_obsolete(cg->st_cpu);
if(cg->st_cpu_limit) rrdset_is_obsolete(cg->st_cpu_limit);
if(cg->st_cpu_per_core) rrdset_is_obsolete(cg->st_cpu_per_core);
if(cg->st_cpu_nr_throttled) rrdset_is_obsolete(cg->st_cpu_nr_throttled);
if(cg->st_cpu_throttled_time) rrdset_is_obsolete(cg->st_cpu_throttled_time);
if(cg->st_cpu_shares) rrdset_is_obsolete(cg->st_cpu_shares);
if(cg->st_mem) rrdset_is_obsolete(cg->st_mem);
if(cg->st_writeback) rrdset_is_obsolete(cg->st_writeback);
if(cg->st_mem_activity) rrdset_is_obsolete(cg->st_mem_activity);
if(cg->st_pgfaults) rrdset_is_obsolete(cg->st_pgfaults);
if(cg->st_mem_usage) rrdset_is_obsolete(cg->st_mem_usage);
if(cg->st_mem_usage_limit) rrdset_is_obsolete(cg->st_mem_usage_limit);
if(cg->st_mem_utilization) rrdset_is_obsolete(cg->st_mem_utilization);
if(cg->st_mem_failcnt) rrdset_is_obsolete(cg->st_mem_failcnt);
if(cg->st_io) rrdset_is_obsolete(cg->st_io);
if(cg->st_serviced_ops) rrdset_is_obsolete(cg->st_serviced_ops);
if(cg->st_throttle_io) rrdset_is_obsolete(cg->st_throttle_io);
if(cg->st_throttle_serviced_ops) rrdset_is_obsolete(cg->st_throttle_serviced_ops);
if(cg->st_queued_ops) rrdset_is_obsolete(cg->st_queued_ops);
if(cg->st_merged_ops) rrdset_is_obsolete(cg->st_merged_ops);
freez(cg->filename_cpuset_cpus);
freez(cg->filename_cpu_cfs_period);
freez(cg->filename_cpu_cfs_quota);
freez(cg->filename_memory_limit);
freez(cg->filename_memoryswap_limit);
free_cgroup_network_interfaces(cg);
freez(cg->cpuacct_usage.cpu_percpu);
freez(cg->cpuacct_stat.filename);
freez(cg->cpuacct_usage.filename);
freez(cg->cpuacct_cpu_throttling.filename);
freez(cg->cpuacct_cpu_shares.filename);
arl_free(cg->memory.arl_base);
freez(cg->memory.filename_detailed);
freez(cg->memory.filename_failcnt);
freez(cg->memory.filename_usage_in_bytes);
freez(cg->memory.filename_msw_usage_in_bytes);
freez(cg->io_service_bytes.filename);
freez(cg->io_serviced.filename);
freez(cg->throttle_io_service_bytes.filename);
freez(cg->throttle_io_serviced.filename);
freez(cg->io_merged.filename);
freez(cg->io_queued.filename);
free_pressure(&cg->cpu_pressure);
free_pressure(&cg->io_pressure);
free_pressure(&cg->memory_pressure);
freez(cg->id);
freez(cg->intermediate_id);
freez(cg->chart_id);
freez(cg->chart_title);
rrdlabels_destroy(cg->chart_labels);
freez(cg);
cgroup_root_count--;
}
// ----------------------------------------------------------------------------
static inline void discovery_rename_cgroup(struct cgroup *cg) {
if (!cg->pending_renames) {
return;
}
cg->pending_renames--;
debug(D_CGROUP, "looking for the name of cgroup '%s' with chart id '%s' and title '%s'", cg->id, cg->chart_id, cg->chart_title);
debug(D_CGROUP, "executing command %s \"%s\" for cgroup '%s'", cgroups_rename_script, cg->intermediate_id, cg->chart_id);
pid_t cgroup_pid;
FILE *fp;
(void)mypopen_raw_default_flags_and_environment(&cgroup_pid, &fp, cgroups_rename_script, cg->id, cg->intermediate_id);
if (!fp) {
error("CGROUP: cannot popen(%s \"%s\", \"r\").", cgroups_rename_script, cg->intermediate_id);
cg->pending_renames = 0;
cg->processed = 1;
return;
}
char buffer[CGROUP_CHARTID_LINE_MAX + 1];
char *new_name = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp);
int exit_code = mypclose(fp, cgroup_pid);
switch (exit_code) {
case 0:
cg->pending_renames = 0;
break;
case 3:
cg->pending_renames = 0;
cg->processed = 1;
break;
}
if(cg->pending_renames || cg->processed) return;
if(!new_name || !*new_name || *new_name == '\n') return;
if(!(new_name = trim(new_name))) return;
char *name = new_name;
if (!strncmp(new_name, "k8s_", 4)) {
if(!cg->chart_labels) cg->chart_labels = rrdlabels_create();
// read the new labels and remove the obsolete ones
rrdlabels_unmark_all(cg->chart_labels);
name = k8s_parse_resolved_name_and_labels(cg->chart_labels, new_name);
rrdlabels_remove_all_unmarked(cg->chart_labels);
}
freez(cg->chart_title);
cg->chart_title = cgroup_title_strdupz(name);
freez(cg->chart_id);
cg->chart_id = cgroup_chart_id_strdupz(name);
substitute_dots_in_id(cg->chart_id);
cg->hash_chart = simple_hash(cg->chart_id);
}
static void is_cgroup_procs_exist(netdata_ebpf_cgroup_shm_body_t *out, char *id) {
struct stat buf;
snprintfz(out->path, FILENAME_MAX, "%s%s/cgroup.procs", cgroup_cpuset_base, id);
if (likely(stat(out->path, &buf) == 0)) {
return;
}
snprintfz(out->path, FILENAME_MAX, "%s%s/cgroup.procs", cgroup_blkio_base, id);
if (likely(stat(out->path, &buf) == 0)) {
return;
}
snprintfz(out->path, FILENAME_MAX, "%s%s/cgroup.procs", cgroup_memory_base, id);
if (likely(stat(out->path, &buf) == 0)) {
return;
}
snprintfz(out->path, FILENAME_MAX, "%s%s/cgroup.procs", cgroup_devices_base, id);
if (likely(stat(out->path, &buf) == 0)) {
return;
}
out->path[0] = '\0';
out->enabled = 0;
}
static inline void convert_cgroup_to_systemd_service(struct cgroup *cg) {
char buffer[CGROUP_CHARTID_LINE_MAX];
cg->options |= CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE;
strncpyz(buffer, cg->id, CGROUP_CHARTID_LINE_MAX);
char *s = buffer;
// skip to the last slash
size_t len = strlen(s);
while (len--) {
if (unlikely(s[len] == '/')) {
break;
}
}
if (len) {
s = &s[len + 1];
}
// remove extension
len = strlen(s);
while (len--) {
if (unlikely(s[len] == '.')) {
break;
}
}
if (len) {
s[len] = '\0';
}
freez(cg->chart_title);
cg->chart_title = cgroup_title_strdupz(s);
}
static inline struct cgroup *discovery_cgroup_add(const char *id) {
debug(D_CGROUP, "adding to list, cgroup with id '%s'", id);
struct cgroup *cg = callocz(1, sizeof(struct cgroup));
cg->id = strdupz(id);
cg->hash = simple_hash(cg->id);
cg->chart_title = cgroup_title_strdupz(id);
cg->intermediate_id = cgroup_chart_id_strdupz(id);
cg->chart_id = cgroup_chart_id_strdupz(id);
substitute_dots_in_id(cg->chart_id);
cg->hash_chart = simple_hash(cg->chart_id);
if (cgroup_use_unified_cgroups) {
cg->options |= CGROUP_OPTIONS_IS_UNIFIED;
}
if (!discovered_cgroup_root)
discovered_cgroup_root = cg;
else {
struct cgroup *t;
for (t = discovered_cgroup_root; t->discovered_next; t = t->discovered_next) {
}
t->discovered_next = cg;
}
return cg;
}
static inline struct cgroup *discovery_cgroup_find(const char *id) {
debug(D_CGROUP, "searching for cgroup '%s'", id);
uint32_t hash = simple_hash(id);
struct cgroup *cg;
for(cg = discovered_cgroup_root; cg ; cg = cg->discovered_next) {
if(hash == cg->hash && strcmp(id, cg->id) == 0)
break;
}
debug(D_CGROUP, "cgroup '%s' %s in memory", id, (cg)?"found":"not found");
return cg;
}
static inline void discovery_find_cgroup_in_dir_callback(const char *dir) {
if (!dir || !*dir) {
dir = "/";
}
debug(D_CGROUP, "examining cgroup dir '%s'", dir);
struct cgroup *cg = discovery_cgroup_find(dir);
if (cg) {
cg->available = 1;
return;
}
if (cgroup_root_count >= cgroup_root_max) {
info("CGROUP: maximum number of cgroups reached (%d). Not adding cgroup '%s'", cgroup_root_count, dir);
return;
}
if (cgroup_max_depth > 0) {
int depth = calc_cgroup_depth(dir);
if (depth > cgroup_max_depth) {
info("CGROUP: '%s' is too deep (%d, while max is %d)", dir, depth, cgroup_max_depth);
return;
}
}
cg = discovery_cgroup_add(dir);
cg->available = 1;
cg->first_time_seen = 1;
cgroup_root_count++;
}
static inline int discovery_find_dir_in_subdirs(const char *base, const char *this, void (*callback)(const char *)) {
if(!this) this = base;
debug(D_CGROUP, "searching for directories in '%s' (base '%s')", this?this:"", base);
size_t dirlen = strlen(this), baselen = strlen(base);
int ret = -1;
int enabled = -1;
const char *relative_path = &this[baselen];
if(!*relative_path) relative_path = "/";
DIR *dir = opendir(this);
if(!dir) {
error("CGROUP: cannot read directory '%s'", base);
return ret;
}
ret = 1;
callback(relative_path);
struct dirent *de = NULL;
while((de = readdir(dir))) {
if(de->d_type == DT_DIR
&& (
(de->d_name[0] == '.' && de->d_name[1] == '\0')
|| (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0')
))
continue;
if(de->d_type == DT_DIR) {
if(enabled == -1) {
const char *r = relative_path;
if(*r == '\0') r = "/";
// do not decent in directories we are not interested
enabled = matches_search_cgroup_paths(r);
}
if(enabled) {
char *s = mallocz(dirlen + strlen(de->d_name) + 2);
strcpy(s, this);
strcat(s, "/");
strcat(s, de->d_name);
int ret2 = discovery_find_dir_in_subdirs(base, s, callback);
if(ret2 > 0) ret += ret2;
freez(s);
}
}
}
closedir(dir);
return ret;
}
static inline void discovery_mark_all_cgroups_as_unavailable() {
debug(D_CGROUP, "marking all cgroups as not available");
struct cgroup *cg;
for (cg = discovered_cgroup_root; cg; cg = cg->discovered_next) {
cg->available = 0;
}
}
static inline void discovery_update_filenames() {
struct cgroup *cg;
struct stat buf;
for(cg = discovered_cgroup_root; cg ; cg = cg->discovered_next) {
if(unlikely(!cg->available || !cg->enabled || cg->pending_renames))
continue;
debug(D_CGROUP, "checking paths for cgroup '%s'", cg->id);
// check for newly added cgroups
// and update the filenames they read
char filename[FILENAME_MAX + 1];
if(!cgroup_use_unified_cgroups) {
if(unlikely(cgroup_enable_cpuacct_stat && !cg->cpuacct_stat.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.stat", cgroup_cpuacct_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->cpuacct_stat.filename = strdupz(filename);
cg->cpuacct_stat.enabled = cgroup_enable_cpuacct_stat;
snprintfz(filename, FILENAME_MAX, "%s%s/cpuset.cpus", cgroup_cpuset_base, cg->id);
cg->filename_cpuset_cpus = strdupz(filename);
snprintfz(filename, FILENAME_MAX, "%s%s/cpu.cfs_period_us", cgroup_cpuacct_base, cg->id);
cg->filename_cpu_cfs_period = strdupz(filename);
snprintfz(filename, FILENAME_MAX, "%s%s/cpu.cfs_quota_us", cgroup_cpuacct_base, cg->id);
cg->filename_cpu_cfs_quota = strdupz(filename);
debug(D_CGROUP, "cpuacct.stat filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename);
}
else
debug(D_CGROUP, "cpuacct.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely(cgroup_enable_cpuacct_usage && !cg->cpuacct_usage.filename && !is_cgroup_systemd_service(cg))) {
snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.usage_percpu", cgroup_cpuacct_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->cpuacct_usage.filename = strdupz(filename);
cg->cpuacct_usage.enabled = cgroup_enable_cpuacct_usage;
debug(D_CGROUP, "cpuacct.usage_percpu filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_usage.filename);
}
else
debug(D_CGROUP, "cpuacct.usage_percpu file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely(cgroup_enable_cpuacct_cpu_throttling && !cg->cpuacct_cpu_throttling.filename && !is_cgroup_systemd_service(cg))) {
snprintfz(filename, FILENAME_MAX, "%s%s/cpu.stat", cgroup_cpuacct_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->cpuacct_cpu_throttling.filename = strdupz(filename);
cg->cpuacct_cpu_throttling.enabled = cgroup_enable_cpuacct_cpu_throttling;
debug(D_CGROUP, "cpu.stat filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_cpu_throttling.filename);
}
else
debug(D_CGROUP, "cpu.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if (unlikely(
cgroup_enable_cpuacct_cpu_shares && !cg->cpuacct_cpu_shares.filename &&
!is_cgroup_systemd_service(cg))) {
snprintfz(filename, FILENAME_MAX, "%s%s/cpu.shares", cgroup_cpuacct_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->cpuacct_cpu_shares.filename = strdupz(filename);
cg->cpuacct_cpu_shares.enabled = cgroup_enable_cpuacct_cpu_shares;
debug(
D_CGROUP, "cpu.shares filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_cpu_shares.filename);
} else
debug(D_CGROUP, "cpu.shares file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely((cgroup_enable_detailed_memory || cgroup_used_memory) && !cg->memory.filename_detailed && (cgroup_used_memory || cgroup_enable_systemd_services_detailed_memory || !is_cgroup_systemd_service(cg)))) {
snprintfz(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_memory_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->memory.filename_detailed = strdupz(filename);
cg->memory.enabled_detailed = (cgroup_enable_detailed_memory == CONFIG_BOOLEAN_YES)?CONFIG_BOOLEAN_YES:CONFIG_BOOLEAN_AUTO;
debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_detailed);
}
else
debug(D_CGROUP, "memory.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely(cgroup_enable_memory && !cg->memory.filename_usage_in_bytes)) {
snprintfz(filename, FILENAME_MAX, "%s%s/memory.usage_in_bytes", cgroup_memory_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->memory.filename_usage_in_bytes = strdupz(filename);
cg->memory.enabled_usage_in_bytes = cgroup_enable_memory;
debug(D_CGROUP, "memory.usage_in_bytes filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_usage_in_bytes);
snprintfz(filename, FILENAME_MAX, "%s%s/memory.limit_in_bytes", cgroup_memory_base, cg->id);
cg->filename_memory_limit = strdupz(filename);
}
else
debug(D_CGROUP, "memory.usage_in_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely(cgroup_enable_swap && !cg->memory.filename_msw_usage_in_bytes)) {
snprintfz(filename, FILENAME_MAX, "%s%s/memory.memsw.usage_in_bytes", cgroup_memory_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->memory.filename_msw_usage_in_bytes = strdupz(filename);
cg->memory.enabled_msw_usage_in_bytes = cgroup_enable_swap;
snprintfz(filename, FILENAME_MAX, "%s%s/memory.memsw.limit_in_bytes", cgroup_memory_base, cg->id);
cg->filename_memoryswap_limit = strdupz(filename);
debug(D_CGROUP, "memory.msw_usage_in_bytes filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_msw_usage_in_bytes);
}
else
debug(D_CGROUP, "memory.msw_usage_in_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely(cgroup_enable_memory_failcnt && !cg->memory.filename_failcnt)) {
snprintfz(filename, FILENAME_MAX, "%s%s/memory.failcnt", cgroup_memory_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->memory.filename_failcnt = strdupz(filename);
cg->memory.enabled_failcnt = cgroup_enable_memory_failcnt;
debug(D_CGROUP, "memory.failcnt filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_failcnt);
}
else
debug(D_CGROUP, "memory.failcnt file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely(cgroup_enable_blkio_io && !cg->io_service_bytes.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_service_bytes_recursive", cgroup_blkio_base, cg->id);
if (unlikely(stat(filename, &buf) != -1)) {
cg->io_service_bytes.filename = strdupz(filename);
cg->io_service_bytes.enabled = cgroup_enable_blkio_io;
debug(D_CGROUP, "blkio.io_service_bytes_recursive filename for cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
} else {
debug(D_CGROUP, "blkio.io_service_bytes_recursive file for cgroup '%s': '%s' does not exist.", cg->id, filename);
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_service_bytes", cgroup_blkio_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->io_service_bytes.filename = strdupz(filename);
cg->io_service_bytes.enabled = cgroup_enable_blkio_io;
debug(D_CGROUP, "blkio.io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
} else {
debug(D_CGROUP, "blkio.io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
}
}
if (unlikely(cgroup_enable_blkio_ops && !cg->io_serviced.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_serviced_recursive", cgroup_blkio_base, cg->id);
if (unlikely(stat(filename, &buf) != -1)) {
cg->io_serviced.filename = strdupz(filename);
cg->io_serviced.enabled = cgroup_enable_blkio_ops;
debug(D_CGROUP, "blkio.io_serviced_recursive filename for cgroup '%s': '%s'", cg->id, cg->io_serviced.filename);
} else {
debug(D_CGROUP, "blkio.io_serviced_recursive file for cgroup '%s': '%s' does not exist.", cg->id, filename);
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_serviced", cgroup_blkio_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->io_serviced.filename = strdupz(filename);
cg->io_serviced.enabled = cgroup_enable_blkio_ops;
debug(D_CGROUP, "blkio.io_serviced filename for cgroup '%s': '%s'", cg->id, cg->io_serviced.filename);
} else {
debug(D_CGROUP, "blkio.io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
}
}
if (unlikely(cgroup_enable_blkio_throttle_io && !cg->throttle_io_service_bytes.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_service_bytes_recursive", cgroup_blkio_base, cg->id);
if (unlikely(stat(filename, &buf) != -1)) {
cg->throttle_io_service_bytes.filename = strdupz(filename);
cg->throttle_io_service_bytes.enabled = cgroup_enable_blkio_throttle_io;
debug(D_CGROUP,"blkio.throttle.io_service_bytes_recursive filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_service_bytes.filename);
} else {
debug(D_CGROUP, "blkio.throttle.io_service_bytes_recursive file for cgroup '%s': '%s' does not exist.", cg->id, filename);
snprintfz(
filename, FILENAME_MAX, "%s%s/blkio.throttle.io_service_bytes", cgroup_blkio_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->throttle_io_service_bytes.filename = strdupz(filename);
cg->throttle_io_service_bytes.enabled = cgroup_enable_blkio_throttle_io;
debug(D_CGROUP, "blkio.throttle.io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_service_bytes.filename);
} else {
debug(D_CGROUP, "blkio.throttle.io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
}
}
if (unlikely(cgroup_enable_blkio_throttle_ops && !cg->throttle_io_serviced.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_serviced_recursive", cgroup_blkio_base, cg->id);
if (unlikely(stat(filename, &buf) != -1)) {
cg->throttle_io_serviced.filename = strdupz(filename);
cg->throttle_io_serviced.enabled = cgroup_enable_blkio_throttle_ops;
debug(D_CGROUP, "blkio.throttle.io_serviced_recursive filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_serviced.filename);
} else {
debug(D_CGROUP, "blkio.throttle.io_serviced_recursive file for cgroup '%s': '%s' does not exist.", cg->id, filename);
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_serviced", cgroup_blkio_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->throttle_io_serviced.filename = strdupz(filename);
cg->throttle_io_serviced.enabled = cgroup_enable_blkio_throttle_ops;
debug(D_CGROUP, "blkio.throttle.io_serviced filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_serviced.filename);
} else {
debug(D_CGROUP, "blkio.throttle.io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
}
}
if (unlikely(cgroup_enable_blkio_merged_ops && !cg->io_merged.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_merged_recursive", cgroup_blkio_base, cg->id);
if (unlikely(stat(filename, &buf) != -1)) {
cg->io_merged.filename = strdupz(filename);
cg->io_merged.enabled = cgroup_enable_blkio_merged_ops;
debug(D_CGROUP, "blkio.io_merged_recursive filename for cgroup '%s': '%s'", cg->id, cg->io_merged.filename);
} else {
debug(D_CGROUP, "blkio.io_merged_recursive file for cgroup '%s': '%s' does not exist.", cg->id, filename);
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_merged", cgroup_blkio_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->io_merged.filename = strdupz(filename);
cg->io_merged.enabled = cgroup_enable_blkio_merged_ops;
debug(D_CGROUP, "blkio.io_merged filename for cgroup '%s': '%s'", cg->id, cg->io_merged.filename);
} else {
debug(D_CGROUP, "blkio.io_merged file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
}
}
if (unlikely(cgroup_enable_blkio_queued_ops && !cg->io_queued.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_queued_recursive", cgroup_blkio_base, cg->id);
if (unlikely(stat(filename, &buf) != -1)) {
cg->io_queued.filename = strdupz(filename);
cg->io_queued.enabled = cgroup_enable_blkio_queued_ops;
debug(D_CGROUP, "blkio.io_queued_recursive filename for cgroup '%s': '%s'", cg->id, cg->io_queued.filename);
} else {
debug(D_CGROUP, "blkio.io_queued_recursive file for cgroup '%s': '%s' does not exist.", cg->id, filename);
snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_queued", cgroup_blkio_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->io_queued.filename = strdupz(filename);
cg->io_queued.enabled = cgroup_enable_blkio_queued_ops;
debug(D_CGROUP, "blkio.io_queued filename for cgroup '%s': '%s'", cg->id, cg->io_queued.filename);
} else {
debug(D_CGROUP, "blkio.io_queued file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
}
}
}
else if(likely(cgroup_unified_exist)) {
if(unlikely(cgroup_enable_blkio_io && !cg->io_service_bytes.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/io.stat", cgroup_unified_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->io_service_bytes.filename = strdupz(filename);
cg->io_service_bytes.enabled = cgroup_enable_blkio_io;
debug(D_CGROUP, "io.stat filename for unified cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
} else
debug(D_CGROUP, "io.stat file for unified cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if (unlikely(cgroup_enable_blkio_ops && !cg->io_serviced.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/io.stat", cgroup_unified_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->io_serviced.filename = strdupz(filename);
cg->io_serviced.enabled = cgroup_enable_blkio_ops;
debug(D_CGROUP, "io.stat filename for unified cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename);
} else
debug(D_CGROUP, "io.stat file for unified cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if (unlikely(
(cgroup_enable_cpuacct_stat || cgroup_enable_cpuacct_cpu_throttling) &&
!cg->cpuacct_stat.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/cpu.stat", cgroup_unified_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->cpuacct_stat.filename = strdupz(filename);
cg->cpuacct_stat.enabled = cgroup_enable_cpuacct_stat;
cg->cpuacct_cpu_throttling.enabled = cgroup_enable_cpuacct_cpu_throttling;
cg->filename_cpuset_cpus = NULL;
cg->filename_cpu_cfs_period = NULL;
snprintfz(filename, FILENAME_MAX, "%s%s/cpu.max", cgroup_unified_base, cg->id);
cg->filename_cpu_cfs_quota = strdupz(filename);
debug(D_CGROUP, "cpu.stat filename for unified cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename);
}
else
debug(D_CGROUP, "cpu.stat file for unified cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if (unlikely(cgroup_enable_cpuacct_cpu_shares && !cg->cpuacct_cpu_shares.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/cpu.weight", cgroup_unified_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->cpuacct_cpu_shares.filename = strdupz(filename);
cg->cpuacct_cpu_shares.enabled = cgroup_enable_cpuacct_cpu_shares;
debug(D_CGROUP, "cpu.weight filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_cpu_shares.filename);
} else
debug(D_CGROUP, "cpu.weight file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely((cgroup_enable_detailed_memory || cgroup_used_memory) && !cg->memory.filename_detailed && (cgroup_used_memory || cgroup_enable_systemd_services_detailed_memory || !is_cgroup_systemd_service(cg)))) {
snprintfz(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_unified_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->memory.filename_detailed = strdupz(filename);
cg->memory.enabled_detailed = (cgroup_enable_detailed_memory == CONFIG_BOOLEAN_YES)?CONFIG_BOOLEAN_YES:CONFIG_BOOLEAN_AUTO;
debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_detailed);
}
else
debug(D_CGROUP, "memory.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely(cgroup_enable_memory && !cg->memory.filename_usage_in_bytes)) {
snprintfz(filename, FILENAME_MAX, "%s%s/memory.current", cgroup_unified_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->memory.filename_usage_in_bytes = strdupz(filename);
cg->memory.enabled_usage_in_bytes = cgroup_enable_memory;
debug(D_CGROUP, "memory.current filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_usage_in_bytes);
snprintfz(filename, FILENAME_MAX, "%s%s/memory.max", cgroup_unified_base, cg->id);
cg->filename_memory_limit = strdupz(filename);
}
else
debug(D_CGROUP, "memory.current file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if(unlikely(cgroup_enable_swap && !cg->memory.filename_msw_usage_in_bytes)) {
snprintfz(filename, FILENAME_MAX, "%s%s/memory.swap.current", cgroup_unified_base, cg->id);
if(likely(stat(filename, &buf) != -1)) {
cg->memory.filename_msw_usage_in_bytes = strdupz(filename);
cg->memory.enabled_msw_usage_in_bytes = cgroup_enable_swap;
snprintfz(filename, FILENAME_MAX, "%s%s/memory.swap.max", cgroup_unified_base, cg->id);
cg->filename_memoryswap_limit = strdupz(filename);
debug(D_CGROUP, "memory.swap.current filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_msw_usage_in_bytes);
}
else
debug(D_CGROUP, "memory.swap file for cgroup '%s': '%s' does not exist.", cg->id, filename);
}
if (unlikely(cgroup_enable_pressure_cpu && !cg->cpu_pressure.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/cpu.pressure", cgroup_unified_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->cpu_pressure.filename = strdupz(filename);
cg->cpu_pressure.some.enabled = cgroup_enable_pressure_cpu;
cg->cpu_pressure.full.enabled = CONFIG_BOOLEAN_NO;
debug(D_CGROUP, "cpu.pressure filename for cgroup '%s': '%s'", cg->id, cg->cpu_pressure.filename);
} else {
debug(D_CGROUP, "cpu.pressure file for cgroup '%s': '%s' does not exist", cg->id, filename);
}
}
if (unlikely((cgroup_enable_pressure_io_some || cgroup_enable_pressure_io_full) && !cg->io_pressure.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/io.pressure", cgroup_unified_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->io_pressure.filename = strdupz(filename);
cg->io_pressure.some.enabled = cgroup_enable_pressure_io_some;
cg->io_pressure.full.enabled = cgroup_enable_pressure_io_full;
debug(D_CGROUP, "io.pressure filename for cgroup '%s': '%s'", cg->id, cg->io_pressure.filename);
} else {
debug(D_CGROUP, "io.pressure file for cgroup '%s': '%s' does not exist", cg->id, filename);
}
}
if (unlikely((cgroup_enable_pressure_memory_some || cgroup_enable_pressure_memory_full) && !cg->memory_pressure.filename)) {
snprintfz(filename, FILENAME_MAX, "%s%s/memory.pressure", cgroup_unified_base, cg->id);
if (likely(stat(filename, &buf) != -1)) {
cg->memory_pressure.filename = strdupz(filename);
cg->memory_pressure.some.enabled = cgroup_enable_pressure_memory_some;
cg->memory_pressure.full.enabled = cgroup_enable_pressure_memory_full;
debug(D_CGROUP, "memory.pressure filename for cgroup '%s': '%s'", cg->id, cg->memory_pressure.filename);
} else {
debug(D_CGROUP, "memory.pressure file for cgroup '%s': '%s' does not exist", cg->id, filename);
}
}
}
}
}
static inline void discovery_cleanup_all_cgroups() {
struct cgroup *cg = discovered_cgroup_root, *last = NULL;
for(; cg ;) {
if(!cg->available) {
// enable the first duplicate cgroup
{
struct cgroup *t;
for(t = discovered_cgroup_root; t ; t = t->discovered_next) {
if(t != cg && t->available && !t->enabled && t->options & CGROUP_OPTIONS_DISABLED_DUPLICATE && t->hash_chart == cg->hash_chart && !strcmp(t->chart_id, cg->chart_id)) {
debug(D_CGROUP, "Enabling duplicate of cgroup '%s' with id '%s', because the original with id '%s' stopped.", t->chart_id, t->id, cg->id);
t->enabled = 1;
t->options &= ~CGROUP_OPTIONS_DISABLED_DUPLICATE;
break;
}
}
}
if(!last)
discovered_cgroup_root = cg->discovered_next;
else
last->discovered_next = cg->discovered_next;
cgroup_free(cg);
if(!last)
cg = discovered_cgroup_root;
else
cg = last->discovered_next;
}
else {
last = cg;
cg = cg->discovered_next;
}
}
}
static inline void discovery_copy_discovered_cgroups_to_reader() {
debug(D_CGROUP, "copy discovered cgroups to the main group list");
struct cgroup *cg;
for (cg = discovered_cgroup_root; cg; cg = cg->discovered_next) {
cg->next = cg->discovered_next;
}
cgroup_root = discovered_cgroup_root;
}
static inline void discovery_share_cgroups_with_ebpf() {
struct cgroup *cg;
int count;
struct stat buf;
if (shm_mutex_cgroup_ebpf == SEM_FAILED) {
return;
}
sem_wait(shm_mutex_cgroup_ebpf);
for (cg = cgroup_root, count = 0; cg; cg = cg->next, count++) {
netdata_ebpf_cgroup_shm_body_t *ptr = &shm_cgroup_ebpf.body[count];
char *prefix = (is_cgroup_systemd_service(cg)) ? "" : "cgroup_";
snprintfz(ptr->name, CGROUP_EBPF_NAME_SHARED_LENGTH - 1, "%s%s", prefix, cg->chart_title);
ptr->hash = simple_hash(ptr->name);
ptr->options = cg->options;
ptr->enabled = cg->enabled;
if (cgroup_use_unified_cgroups) {
snprintfz(ptr->path, FILENAME_MAX, "%s%s/cgroup.procs", cgroup_unified_base, cg->id);
if (likely(stat(ptr->path, &buf) == -1)) {
ptr->path[0] = '\0';
ptr->enabled = 0;
}
} else {
is_cgroup_procs_exist(ptr, cg->id);
}
debug(D_CGROUP, "cgroup shared: NAME=%s, ENABLED=%d", ptr->name, ptr->enabled);
}
shm_cgroup_ebpf.header->cgroup_root_count = count;
sem_post(shm_mutex_cgroup_ebpf);
}
static inline void discovery_find_all_cgroups_v1() {
if (cgroup_enable_cpuacct_stat || cgroup_enable_cpuacct_usage) {
if (discovery_find_dir_in_subdirs(cgroup_cpuacct_base, NULL, discovery_find_cgroup_in_dir_callback) == -1) {
cgroup_enable_cpuacct_stat = cgroup_enable_cpuacct_usage = CONFIG_BOOLEAN_NO;
error("CGROUP: disabled cpu statistics.");
}
}
if (cgroup_enable_blkio_io || cgroup_enable_blkio_ops || cgroup_enable_blkio_throttle_io ||
cgroup_enable_blkio_throttle_ops || cgroup_enable_blkio_merged_ops || cgroup_enable_blkio_queued_ops) {
if (discovery_find_dir_in_subdirs(cgroup_blkio_base, NULL, discovery_find_cgroup_in_dir_callback) == -1) {
cgroup_enable_blkio_io = cgroup_enable_blkio_ops = cgroup_enable_blkio_throttle_io =
cgroup_enable_blkio_throttle_ops = cgroup_enable_blkio_merged_ops = cgroup_enable_blkio_queued_ops =
CONFIG_BOOLEAN_NO;
error("CGROUP: disabled blkio statistics.");
}
}
if (cgroup_enable_memory || cgroup_enable_detailed_memory || cgroup_enable_swap || cgroup_enable_memory_failcnt) {
if (discovery_find_dir_in_subdirs(cgroup_memory_base, NULL, discovery_find_cgroup_in_dir_callback) == -1) {
cgroup_enable_memory = cgroup_enable_detailed_memory = cgroup_enable_swap = cgroup_enable_memory_failcnt =
CONFIG_BOOLEAN_NO;
error("CGROUP: disabled memory statistics.");
}
}
if (cgroup_search_in_devices) {
if (discovery_find_dir_in_subdirs(cgroup_devices_base, NULL, discovery_find_cgroup_in_dir_callback) == -1) {
cgroup_search_in_devices = 0;
error("CGROUP: disabled devices statistics.");
}
}
}
static inline void discovery_find_all_cgroups_v2() {
if (discovery_find_dir_in_subdirs(cgroup_unified_base, NULL, discovery_find_cgroup_in_dir_callback) == -1) {
cgroup_unified_exist = CONFIG_BOOLEAN_NO;
error("CGROUP: disabled unified cgroups statistics.");
}
}
static int is_digits_only(const char *s) {
do {
if (!isdigit(*s++)) {
return 0;
}
} while (*s);
return 1;
}
static inline void discovery_process_first_time_seen_cgroup(struct cgroup *cg) {
if (!cg->first_time_seen) {
return;
}
cg->first_time_seen = 0;
char comm[TASK_COMM_LEN];
if (is_inside_k8s && !k8s_get_container_first_proc_comm(cg->id, comm)) {
// container initialization may take some time when CPU % is high
// seen on GKE: comm is '6' before 'runc:[2:INIT]' (dunno if it could be another number)
if (is_digits_only(comm) || matches_entrypoint_parent_process_comm(comm)) {
cg->first_time_seen = 1;
return;
}
if (!strcmp(comm, "pause")) {
// a container that holds the network namespace for the pod
// we don't need to collect its metrics
cg->processed = 1;
return;
}
}
if (cgroup_enable_systemd_services && matches_systemd_services_cgroups(cg->id)) {
debug(D_CGROUP, "cgroup '%s' (name '%s') matches 'cgroups to match as systemd services'", cg->id, cg->chart_title);
convert_cgroup_to_systemd_service(cg);
return;
}
if (matches_enabled_cgroup_renames(cg->id)) {
debug(D_CGROUP, "cgroup '%s' (name '%s') matches 'run script to rename cgroups matching', will try to rename it", cg->id, cg->chart_title);
if (is_inside_k8s && k8s_is_container(cg->id)) {
// it may take up to a minute for the K8s API to return data for the container
// tested on AWS K8s cluster with 100% CPU utilization
cg->pending_renames = 9; // 1.5 minute
} else {
cg->pending_renames = 2;
}
}
}
static int discovery_is_cgroup_duplicate(struct cgroup *cg) {
// https://github.com/netdata/netdata/issues/797#issuecomment-241248884
struct cgroup *c;
for (c = discovered_cgroup_root; c; c = c->discovered_next) {
if (c != cg && c->enabled && c->hash_chart == cg->hash_chart && !strcmp(c->chart_id, cg->chart_id)) {
error("CGROUP: chart id '%s' already exists with id '%s' and is enabled and available. Disabling cgroup with id '%s'.", cg->chart_id, c->id, cg->id);
return 1;
}
}
return 0;
}
static inline void discovery_process_cgroup(struct cgroup *cg) {
if (!cg) {
debug(D_CGROUP, "discovery_process_cgroup() received NULL");
return;
}
if (!cg->available || cg->processed) {
return;
}
if (cg->first_time_seen) {
worker_is_busy(WORKER_DISCOVERY_PROCESS_FIRST_TIME);
discovery_process_first_time_seen_cgroup(cg);
if (unlikely(cg->first_time_seen || cg->processed)) {
return;
}
}
if (cg->pending_renames) {
worker_is_busy(WORKER_DISCOVERY_PROCESS_RENAME);
discovery_rename_cgroup(cg);
if (unlikely(cg->pending_renames || cg->processed)) {
return;
}
}
cg->processed = 1;
if (is_cgroup_systemd_service(cg)) {
cg->enabled = 1;
return;
}
if (!(cg->enabled = matches_enabled_cgroup_names(cg->chart_title))) {
debug(D_CGROUP, "cgroup '%s' (name '%s') disabled by 'enable by default cgroups names matching'", cg->id, cg->chart_title);
return;
}
if (!(cg->enabled = matches_enabled_cgroup_paths(cg->id))) {
debug(D_CGROUP, "cgroup '%s' (name '%s') disabled by 'enable by default cgroups matching'", cg->id, cg->chart_title);
return;
}
if (discovery_is_cgroup_duplicate(cg)) {
cg->enabled = 0;
cg->options |= CGROUP_OPTIONS_DISABLED_DUPLICATE;
return;
}
worker_is_busy(WORKER_DISCOVERY_PROCESS_NETWORK);
read_cgroup_network_interfaces(cg);
}
static inline void discovery_find_all_cgroups() {
debug(D_CGROUP, "searching for cgroups");
worker_is_busy(WORKER_DISCOVERY_INIT);
discovery_mark_all_cgroups_as_unavailable();
worker_is_busy(WORKER_DISCOVERY_FIND);
if (!cgroup_use_unified_cgroups) {
discovery_find_all_cgroups_v1();
} else {
discovery_find_all_cgroups_v2();
}
struct cgroup *cg;
for (cg = discovered_cgroup_root; cg; cg = cg->discovered_next) {
worker_is_busy(WORKER_DISCOVERY_PROCESS);
discovery_process_cgroup(cg);
}
worker_is_busy(WORKER_DISCOVERY_UPDATE);
discovery_update_filenames();
worker_is_busy(WORKER_DISCOVERY_LOCK);
uv_mutex_lock(&cgroup_root_mutex);
worker_is_busy(WORKER_DISCOVERY_CLEANUP);
discovery_cleanup_all_cgroups();
worker_is_busy(WORKER_DISCOVERY_COPY);
discovery_copy_discovered_cgroups_to_reader();
uv_mutex_unlock(&cgroup_root_mutex);
worker_is_busy(WORKER_DISCOVERY_SHARE);
discovery_share_cgroups_with_ebpf();
debug(D_CGROUP, "done searching for cgroups");
}
void cgroup_discovery_worker(void *ptr)
{
UNUSED(ptr);
worker_register("CGROUPSDISC");
worker_register_job_name(WORKER_DISCOVERY_INIT, "init");
worker_register_job_name(WORKER_DISCOVERY_FIND, "find");
worker_register_job_name(WORKER_DISCOVERY_PROCESS, "process");
worker_register_job_name(WORKER_DISCOVERY_PROCESS_RENAME, "rename");
worker_register_job_name(WORKER_DISCOVERY_PROCESS_NETWORK, "network");
worker_register_job_name(WORKER_DISCOVERY_PROCESS_FIRST_TIME, "new");
worker_register_job_name(WORKER_DISCOVERY_UPDATE, "update");
worker_register_job_name(WORKER_DISCOVERY_CLEANUP, "cleanup");
worker_register_job_name(WORKER_DISCOVERY_COPY, "copy");
worker_register_job_name(WORKER_DISCOVERY_SHARE, "share");
worker_register_job_name(WORKER_DISCOVERY_LOCK, "lock");
entrypoint_parent_process_comm = simple_pattern_create(
" runc:[* " // http://terenceli.github.io/%E6%8A%80%E6%9C%AF/2021/12/28/runc-internals-3)
" exe ", // https://github.com/falcosecurity/falco/blob/9d41b0a151b83693929d3a9c84f7c5c85d070d3a/rules/falco_rules.yaml#L1961
NULL,
SIMPLE_PATTERN_EXACT);
while (!netdata_exit) {
worker_is_idle();
uv_mutex_lock(&discovery_thread.mutex);
while (!discovery_thread.start_discovery)
uv_cond_wait(&discovery_thread.cond_var, &discovery_thread.mutex);
discovery_thread.start_discovery = 0;
uv_mutex_unlock(&discovery_thread.mutex);
if (unlikely(netdata_exit))
break;
discovery_find_all_cgroups();
}
discovery_thread.exited = 1;
worker_unregister();
}
// ----------------------------------------------------------------------------
// generate charts
#define CHART_TITLE_MAX 300
void update_systemd_services_charts(
int update_every
, int do_cpu
, int do_mem_usage
, int do_mem_detailed
, int do_mem_failcnt
, int do_swap_usage
, int do_io
, int do_io_ops
, int do_throttle_io
, int do_throttle_ops
, int do_queued_ops
, int do_merged_ops
) {
static RRDSET
*st_cpu = NULL,
*st_mem_usage = NULL,
*st_mem_failcnt = NULL,
*st_swap_usage = NULL,
*st_mem_detailed_cache = NULL,
*st_mem_detailed_rss = NULL,
*st_mem_detailed_mapped = NULL,
*st_mem_detailed_writeback = NULL,
*st_mem_detailed_pgfault = NULL,
*st_mem_detailed_pgmajfault = NULL,
*st_mem_detailed_pgpgin = NULL,
*st_mem_detailed_pgpgout = NULL,
*st_io_read = NULL,
*st_io_serviced_read = NULL,
*st_throttle_io_read = NULL,
*st_throttle_ops_read = NULL,
*st_queued_ops_read = NULL,
*st_merged_ops_read = NULL,
*st_io_write = NULL,
*st_io_serviced_write = NULL,
*st_throttle_io_write = NULL,
*st_throttle_ops_write = NULL,
*st_queued_ops_write = NULL,
*st_merged_ops_write = NULL;
// create the charts
if(likely(do_cpu)) {
if(unlikely(!st_cpu)) {
char title[CHART_TITLE_MAX + 1];
snprintfz(title, CHART_TITLE_MAX, "Systemd Services CPU utilization (100%% = 1 core)");
st_cpu = rrdset_create_localhost(
"services"
, "cpu"
, NULL
, "cpu"
, "services.cpu"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_cpu);
}
if(likely(do_mem_usage)) {
if(unlikely(!st_mem_usage)) {
st_mem_usage = rrdset_create_localhost(
"services"
, "mem_usage"
, NULL
, "mem"
, "services.mem_usage"
, "Systemd Services Used Memory"
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 10
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_usage);
}
if(likely(do_mem_detailed)) {
if(unlikely(!st_mem_detailed_rss)) {
st_mem_detailed_rss = rrdset_create_localhost(
"services"
, "mem_rss"
, NULL
, "mem"
, "services.mem_rss"
, "Systemd Services RSS Memory"
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 20
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_detailed_rss);
if(unlikely(!st_mem_detailed_mapped)) {
st_mem_detailed_mapped = rrdset_create_localhost(
"services"
, "mem_mapped"
, NULL
, "mem"
, "services.mem_mapped"
, "Systemd Services Mapped Memory"
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 30
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_detailed_mapped);
if(unlikely(!st_mem_detailed_cache)) {
st_mem_detailed_cache = rrdset_create_localhost(
"services"
, "mem_cache"
, NULL
, "mem"
, "services.mem_cache"
, "Systemd Services Cache Memory"
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 40
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_detailed_cache);
if(unlikely(!st_mem_detailed_writeback)) {
st_mem_detailed_writeback = rrdset_create_localhost(
"services"
, "mem_writeback"
, NULL
, "mem"
, "services.mem_writeback"
, "Systemd Services Writeback Memory"
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 50
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_detailed_writeback);
if(unlikely(!st_mem_detailed_pgfault)) {
st_mem_detailed_pgfault = rrdset_create_localhost(
"services"
, "mem_pgfault"
, NULL
, "mem"
, "services.mem_pgfault"
, "Systemd Services Memory Minor Page Faults"
, "MiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 60
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_detailed_pgfault);
if(unlikely(!st_mem_detailed_pgmajfault)) {
st_mem_detailed_pgmajfault = rrdset_create_localhost(
"services"
, "mem_pgmajfault"
, NULL
, "mem"
, "services.mem_pgmajfault"
, "Systemd Services Memory Major Page Faults"
, "MiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 70
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_detailed_pgmajfault);
if(unlikely(!st_mem_detailed_pgpgin)) {
st_mem_detailed_pgpgin = rrdset_create_localhost(
"services"
, "mem_pgpgin"
, NULL
, "mem"
, "services.mem_pgpgin"
, "Systemd Services Memory Charging Activity"
, "MiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 80
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_detailed_pgpgin);
if(unlikely(!st_mem_detailed_pgpgout)) {
st_mem_detailed_pgpgout = rrdset_create_localhost(
"services"
, "mem_pgpgout"
, NULL
, "mem"
, "services.mem_pgpgout"
, "Systemd Services Memory Uncharging Activity"
, "MiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 90
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_detailed_pgpgout);
}
if(likely(do_mem_failcnt)) {
if(unlikely(!st_mem_failcnt)) {
st_mem_failcnt = rrdset_create_localhost(
"services"
, "mem_failcnt"
, NULL
, "mem"
, "services.mem_failcnt"
, "Systemd Services Memory Limit Failures"
, "failures"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 110
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_mem_failcnt);
}
if(likely(do_swap_usage)) {
if(unlikely(!st_swap_usage)) {
st_swap_usage = rrdset_create_localhost(
"services"
, "swap_usage"
, NULL
, "swap"
, "services.swap_usage"
, "Systemd Services Swap Memory Used"
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 100
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_swap_usage);
}
if(likely(do_io)) {
if(unlikely(!st_io_read)) {
st_io_read = rrdset_create_localhost(
"services"
, "io_read"
, NULL
, "disk"
, "services.io_read"
, "Systemd Services Disk Read Bandwidth"
, "KiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 120
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_io_read);
if(unlikely(!st_io_write)) {
st_io_write = rrdset_create_localhost(
"services"
, "io_write"
, NULL
, "disk"
, "services.io_write"
, "Systemd Services Disk Write Bandwidth"
, "KiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 130
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_io_write);
}
if(likely(do_io_ops)) {
if(unlikely(!st_io_serviced_read)) {
st_io_serviced_read = rrdset_create_localhost(
"services"
, "io_ops_read"
, NULL
, "disk"
, "services.io_ops_read"
, "Systemd Services Disk Read Operations"
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 140
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_io_serviced_read);
if(unlikely(!st_io_serviced_write)) {
st_io_serviced_write = rrdset_create_localhost(
"services"
, "io_ops_write"
, NULL
, "disk"
, "services.io_ops_write"
, "Systemd Services Disk Write Operations"
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 150
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_io_serviced_write);
}
if(likely(do_throttle_io)) {
if(unlikely(!st_throttle_io_read)) {
st_throttle_io_read = rrdset_create_localhost(
"services"
, "throttle_io_read"
, NULL
, "disk"
, "services.throttle_io_read"
, "Systemd Services Throttle Disk Read Bandwidth"
, "KiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 160
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_throttle_io_read);
if(unlikely(!st_throttle_io_write)) {
st_throttle_io_write = rrdset_create_localhost(
"services"
, "throttle_io_write"
, NULL
, "disk"
, "services.throttle_io_write"
, "Systemd Services Throttle Disk Write Bandwidth"
, "KiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 170
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_throttle_io_write);
}
if(likely(do_throttle_ops)) {
if(unlikely(!st_throttle_ops_read)) {
st_throttle_ops_read = rrdset_create_localhost(
"services"
, "throttle_io_ops_read"
, NULL
, "disk"
, "services.throttle_io_ops_read"
, "Systemd Services Throttle Disk Read Operations"
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 180
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_throttle_ops_read);
if(unlikely(!st_throttle_ops_write)) {
st_throttle_ops_write = rrdset_create_localhost(
"services"
, "throttle_io_ops_write"
, NULL
, "disk"
, "services.throttle_io_ops_write"
, "Systemd Services Throttle Disk Write Operations"
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 190
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_throttle_ops_write);
}
if(likely(do_queued_ops)) {
if(unlikely(!st_queued_ops_read)) {
st_queued_ops_read = rrdset_create_localhost(
"services"
, "queued_io_ops_read"
, NULL
, "disk"
, "services.queued_io_ops_read"
, "Systemd Services Queued Disk Read Operations"
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 200
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_queued_ops_read);
if(unlikely(!st_queued_ops_write)) {
st_queued_ops_write = rrdset_create_localhost(
"services"
, "queued_io_ops_write"
, NULL
, "disk"
, "services.queued_io_ops_write"
, "Systemd Services Queued Disk Write Operations"
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 210
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_queued_ops_write);
}
if(likely(do_merged_ops)) {
if(unlikely(!st_merged_ops_read)) {
st_merged_ops_read = rrdset_create_localhost(
"services"
, "merged_io_ops_read"
, NULL
, "disk"
, "services.merged_io_ops_read"
, "Systemd Services Merged Disk Read Operations"
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 220
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_merged_ops_read);
if(unlikely(!st_merged_ops_write)) {
st_merged_ops_write = rrdset_create_localhost(
"services"
, "merged_io_ops_write"
, NULL
, "disk"
, "services.merged_io_ops_write"
, "Systemd Services Merged Disk Write Operations"
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME
, NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 230
, update_every
, RRDSET_TYPE_STACKED
);
}
else
rrdset_next(st_merged_ops_write);
}
// update the values
struct cgroup *cg;
for(cg = cgroup_root; cg ; cg = cg->next) {
if(unlikely(!cg->enabled || cg->pending_renames || !is_cgroup_systemd_service(cg)))
continue;
if(likely(do_cpu && cg->cpuacct_stat.updated)) {
if(unlikely(!cg->rd_cpu)){
if (!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
cg->rd_cpu = rrddim_add(st_cpu, cg->chart_id, cg->chart_title, 100, system_hz, RRD_ALGORITHM_INCREMENTAL);
} else {
cg->rd_cpu = rrddim_add(st_cpu, cg->chart_id, cg->chart_title, 100, 1000000, RRD_ALGORITHM_INCREMENTAL);
}
}
rrddim_set_by_pointer(st_cpu, cg->rd_cpu, cg->cpuacct_stat.user + cg->cpuacct_stat.system);
}
if(likely(do_mem_usage && cg->memory.updated_usage_in_bytes)) {
if(unlikely(!cg->rd_mem_usage))
cg->rd_mem_usage = rrddim_add(st_mem_usage, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_set_by_pointer(st_mem_usage, cg->rd_mem_usage, cg->memory.usage_in_bytes);
}
if(likely(do_mem_detailed && cg->memory.updated_detailed)) {
if(unlikely(!cg->rd_mem_detailed_rss))
cg->rd_mem_detailed_rss = rrddim_add(st_mem_detailed_rss, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_set_by_pointer(st_mem_detailed_rss, cg->rd_mem_detailed_rss, cg->memory.total_rss);
if(unlikely(!cg->rd_mem_detailed_mapped))
cg->rd_mem_detailed_mapped = rrddim_add(st_mem_detailed_mapped, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_set_by_pointer(st_mem_detailed_mapped, cg->rd_mem_detailed_mapped, cg->memory.total_mapped_file);
if(unlikely(!cg->rd_mem_detailed_cache))
cg->rd_mem_detailed_cache = rrddim_add(st_mem_detailed_cache, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_set_by_pointer(st_mem_detailed_cache, cg->rd_mem_detailed_cache, cg->memory.total_cache);
if(unlikely(!cg->rd_mem_detailed_writeback))
cg->rd_mem_detailed_writeback = rrddim_add(st_mem_detailed_writeback, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_set_by_pointer(st_mem_detailed_writeback, cg->rd_mem_detailed_writeback, cg->memory.total_writeback);
if(unlikely(!cg->rd_mem_detailed_pgfault))
cg->rd_mem_detailed_pgfault = rrddim_add(st_mem_detailed_pgfault, cg->chart_id, cg->chart_title, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_mem_detailed_pgfault, cg->rd_mem_detailed_pgfault, cg->memory.total_pgfault);
if(unlikely(!cg->rd_mem_detailed_pgmajfault))
cg->rd_mem_detailed_pgmajfault = rrddim_add(st_mem_detailed_pgmajfault, cg->chart_id, cg->chart_title, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_mem_detailed_pgmajfault, cg->rd_mem_detailed_pgmajfault, cg->memory.total_pgmajfault);
if(unlikely(!cg->rd_mem_detailed_pgpgin))
cg->rd_mem_detailed_pgpgin = rrddim_add(st_mem_detailed_pgpgin, cg->chart_id, cg->chart_title, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_mem_detailed_pgpgin, cg->rd_mem_detailed_pgpgin, cg->memory.total_pgpgin);
if(unlikely(!cg->rd_mem_detailed_pgpgout))
cg->rd_mem_detailed_pgpgout = rrddim_add(st_mem_detailed_pgpgout, cg->chart_id, cg->chart_title, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_mem_detailed_pgpgout, cg->rd_mem_detailed_pgpgout, cg->memory.total_pgpgout);
}
if(likely(do_mem_failcnt && cg->memory.updated_failcnt)) {
if(unlikely(!cg->rd_mem_failcnt))
cg->rd_mem_failcnt = rrddim_add(st_mem_failcnt, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_mem_failcnt, cg->rd_mem_failcnt, cg->memory.failcnt);
}
if(likely(do_swap_usage && cg->memory.updated_msw_usage_in_bytes)) {
if(unlikely(!cg->rd_swap_usage))
cg->rd_swap_usage = rrddim_add(st_swap_usage, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
rrddim_set_by_pointer(
st_swap_usage,
cg->rd_swap_usage,
cg->memory.msw_usage_in_bytes > (cg->memory.usage_in_bytes + cg->memory.total_inactive_file) ?
cg->memory.msw_usage_in_bytes - (cg->memory.usage_in_bytes + cg->memory.total_inactive_file) : 0);
} else {
rrddim_set_by_pointer(st_swap_usage, cg->rd_swap_usage, cg->memory.msw_usage_in_bytes);
}
}
if(likely(do_io && cg->io_service_bytes.updated)) {
if(unlikely(!cg->rd_io_service_bytes_read))
cg->rd_io_service_bytes_read = rrddim_add(st_io_read, cg->chart_id, cg->chart_title, 1, 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_io_read, cg->rd_io_service_bytes_read, cg->io_service_bytes.Read);
if(unlikely(!cg->rd_io_service_bytes_write))
cg->rd_io_service_bytes_write = rrddim_add(st_io_write, cg->chart_id, cg->chart_title, 1, 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_io_write, cg->rd_io_service_bytes_write, cg->io_service_bytes.Write);
}
if(likely(do_io_ops && cg->io_serviced.updated)) {
if(unlikely(!cg->rd_io_serviced_read))
cg->rd_io_serviced_read = rrddim_add(st_io_serviced_read, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_io_serviced_read, cg->rd_io_serviced_read, cg->io_serviced.Read);
if(unlikely(!cg->rd_io_serviced_write))
cg->rd_io_serviced_write = rrddim_add(st_io_serviced_write, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_io_serviced_write, cg->rd_io_serviced_write, cg->io_serviced.Write);
}
if(likely(do_throttle_io && cg->throttle_io_service_bytes.updated)) {
if(unlikely(!cg->rd_throttle_io_read))
cg->rd_throttle_io_read = rrddim_add(st_throttle_io_read, cg->chart_id, cg->chart_title, 1, 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_throttle_io_read, cg->rd_throttle_io_read, cg->throttle_io_service_bytes.Read);
if(unlikely(!cg->rd_throttle_io_write))
cg->rd_throttle_io_write = rrddim_add(st_throttle_io_write, cg->chart_id, cg->chart_title, 1, 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_throttle_io_write, cg->rd_throttle_io_write, cg->throttle_io_service_bytes.Write);
}
if(likely(do_throttle_ops && cg->throttle_io_serviced.updated)) {
if(unlikely(!cg->rd_throttle_io_serviced_read))
cg->rd_throttle_io_serviced_read = rrddim_add(st_throttle_ops_read, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_throttle_ops_read, cg->rd_throttle_io_serviced_read, cg->throttle_io_serviced.Read);
if(unlikely(!cg->rd_throttle_io_serviced_write))
cg->rd_throttle_io_serviced_write = rrddim_add(st_throttle_ops_write, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_throttle_ops_write, cg->rd_throttle_io_serviced_write, cg->throttle_io_serviced.Write);
}
if(likely(do_queued_ops && cg->io_queued.updated)) {
if(unlikely(!cg->rd_io_queued_read))
cg->rd_io_queued_read = rrddim_add(st_queued_ops_read, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_queued_ops_read, cg->rd_io_queued_read, cg->io_queued.Read);
if(unlikely(!cg->rd_io_queued_write))
cg->rd_io_queued_write = rrddim_add(st_queued_ops_write, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_queued_ops_write, cg->rd_io_queued_write, cg->io_queued.Write);
}
if(likely(do_merged_ops && cg->io_merged.updated)) {
if(unlikely(!cg->rd_io_merged_read))
cg->rd_io_merged_read = rrddim_add(st_merged_ops_read, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_merged_ops_read, cg->rd_io_merged_read, cg->io_merged.Read);
if(unlikely(!cg->rd_io_merged_write))
cg->rd_io_merged_write = rrddim_add(st_merged_ops_write, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(st_merged_ops_write, cg->rd_io_merged_write, cg->io_merged.Write);
}
}
// complete the iteration
if(likely(do_cpu))
rrdset_done(st_cpu);
if(likely(do_mem_usage))
rrdset_done(st_mem_usage);
if(unlikely(do_mem_detailed)) {
rrdset_done(st_mem_detailed_cache);
rrdset_done(st_mem_detailed_rss);
rrdset_done(st_mem_detailed_mapped);
rrdset_done(st_mem_detailed_writeback);
rrdset_done(st_mem_detailed_pgfault);
rrdset_done(st_mem_detailed_pgmajfault);
rrdset_done(st_mem_detailed_pgpgin);
rrdset_done(st_mem_detailed_pgpgout);
}
if(likely(do_mem_failcnt))
rrdset_done(st_mem_failcnt);
if(likely(do_swap_usage))
rrdset_done(st_swap_usage);
if(likely(do_io)) {
rrdset_done(st_io_read);
rrdset_done(st_io_write);
}
if(likely(do_io_ops)) {
rrdset_done(st_io_serviced_read);
rrdset_done(st_io_serviced_write);
}
if(likely(do_throttle_io)) {
rrdset_done(st_throttle_io_read);
rrdset_done(st_throttle_io_write);
}
if(likely(do_throttle_ops)) {
rrdset_done(st_throttle_ops_read);
rrdset_done(st_throttle_ops_write);
}
if(likely(do_queued_ops)) {
rrdset_done(st_queued_ops_read);
rrdset_done(st_queued_ops_write);
}
if(likely(do_merged_ops)) {
rrdset_done(st_merged_ops_read);
rrdset_done(st_merged_ops_write);
}
}
static inline char *cgroup_chart_type(char *buffer, const char *id, size_t len) {
if(buffer[0]) return buffer;
if(id[0] == '\0' || (id[0] == '/' && id[1] == '\0'))
strncpy(buffer, "cgroup_root", len);
else
snprintfz(buffer, len, "cgroup_%s", id);
netdata_fix_chart_id(buffer);
return buffer;
}
static inline unsigned long long cpuset_str2ull(char **s) {
unsigned long long n = 0;
char c;
for(c = **s; c >= '0' && c <= '9' ; c = *(++*s)) {
n *= 10;
n += c - '0';
}
return n;
}
static inline void update_cpu_limits(char **filename, unsigned long long *value, struct cgroup *cg) {
if(*filename) {
int ret = -1;
if(value == &cg->cpuset_cpus) {
static char *buf = NULL;
static size_t buf_size = 0;
if(!buf) {
buf_size = 100U + 6 * get_system_cpus(); // taken from kernel/cgroup/cpuset.c
buf = mallocz(buf_size + 1);
}
ret = read_file(*filename, buf, buf_size);
if(!ret) {
char *s = buf;
unsigned long long ncpus = 0;
// parse the cpuset string and calculate the number of cpus the cgroup is allowed to use
while(*s) {
unsigned long long n = cpuset_str2ull(&s);
ncpus++;
if(*s == ',') {
s++;
continue;
}
if(*s == '-') {
s++;
unsigned long long m = cpuset_str2ull(&s);
ncpus += m - n; // calculate the number of cpus in the region
}
s++;
}
if(likely(ncpus)) *value = ncpus;
}
}
else if(value == &cg->cpu_cfs_period) {
ret = read_single_number_file(*filename, value);
}
else if(value == &cg->cpu_cfs_quota) {
ret = read_single_number_file(*filename, value);
}
else ret = -1;
if(ret) {
error("Cannot refresh cgroup %s cpu limit by reading '%s'. Will not update its limit anymore.", cg->id, *filename);
freez(*filename);
*filename = NULL;
}
}
}
static inline void update_cpu_limits2(struct cgroup *cg) {
if(cg->filename_cpu_cfs_quota){
static procfile *ff = NULL;
ff = procfile_reopen(ff, cg->filename_cpu_cfs_quota, NULL, PROCFILE_FLAG_DEFAULT);
if(unlikely(!ff)) {
goto cpu_limits2_err;
}
ff = procfile_readall(ff);
if(unlikely(!ff)) {
goto cpu_limits2_err;
}
unsigned long lines = procfile_lines(ff);
if (unlikely(lines < 1)) {
error("CGROUP: file '%s' should have 1 lines.", cg->filename_cpu_cfs_quota);
return;
}
cg->cpu_cfs_period = str2ull(procfile_lineword(ff, 0, 1));
cg->cpuset_cpus = get_system_cpus();
char *s = "max\n\0";
if(strcmp(s, procfile_lineword(ff, 0, 0)) == 0){
cg->cpu_cfs_quota = cg->cpu_cfs_period * cg->cpuset_cpus;
} else {
cg->cpu_cfs_quota = str2ull(procfile_lineword(ff, 0, 0));
}
debug(D_CGROUP, "CPU limits values: %llu %llu %llu", cg->cpu_cfs_period, cg->cpuset_cpus, cg->cpu_cfs_quota);
return;
cpu_limits2_err:
error("Cannot refresh cgroup %s cpu limit by reading '%s'. Will not update its limit anymore.", cg->id, cg->filename_cpu_cfs_quota);
freez(cg->filename_cpu_cfs_quota);
cg->filename_cpu_cfs_quota = NULL;
}
}
static inline int update_memory_limits(char **filename, RRDSETVAR **chart_var, unsigned long long *value, const char *chart_var_name, struct cgroup *cg) {
if(*filename) {
if(unlikely(!*chart_var)) {
*chart_var = rrdsetvar_custom_chart_variable_create(cg->st_mem_usage, chart_var_name);
if(!*chart_var) {
error("Cannot create cgroup %s chart variable '%s'. Will not update its limit anymore.", cg->id, chart_var_name);
freez(*filename);
*filename = NULL;
}
}
if(*filename && *chart_var) {
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
if(read_single_number_file(*filename, value)) {
error("Cannot refresh cgroup %s memory limit by reading '%s'. Will not update its limit anymore.", cg->id, *filename);
freez(*filename);
*filename = NULL;
}
else {
rrdsetvar_custom_chart_variable_set(*chart_var, (NETDATA_DOUBLE)(*value / (1024 * 1024)));
return 1;
}
} else {
char buffer[30 + 1];
int ret = read_file(*filename, buffer, 30);
if(ret) {
error("Cannot refresh cgroup %s memory limit by reading '%s'. Will not update its limit anymore.", cg->id, *filename);
freez(*filename);
*filename = NULL;
return 0;
}
char *s = "max\n\0";
if(strcmp(s, buffer) == 0){
*value = UINT64_MAX;
rrdsetvar_custom_chart_variable_set(*chart_var, (NETDATA_DOUBLE)(*value / (1024 * 1024)));
return 1;
}
*value = str2ull(buffer);
rrdsetvar_custom_chart_variable_set(*chart_var, (NETDATA_DOUBLE)(*value / (1024 * 1024)));
return 1;
}
}
}
return 0;
}
void update_cgroup_charts(int update_every) {
debug(D_CGROUP, "updating cgroups charts");
char type[RRD_ID_LENGTH_MAX + 1];
char title[CHART_TITLE_MAX + 1];
int services_do_cpu = 0,
services_do_mem_usage = 0,
services_do_mem_detailed = 0,
services_do_mem_failcnt = 0,
services_do_swap_usage = 0,
services_do_io = 0,
services_do_io_ops = 0,
services_do_throttle_io = 0,
services_do_throttle_ops = 0,
services_do_queued_ops = 0,
services_do_merged_ops = 0;
struct cgroup *cg;
for(cg = cgroup_root; cg ; cg = cg->next) {
if(unlikely(!cg->enabled || cg->pending_renames))
continue;
if(likely(cgroup_enable_systemd_services && is_cgroup_systemd_service(cg))) {
if(cg->cpuacct_stat.updated && cg->cpuacct_stat.enabled == CONFIG_BOOLEAN_YES) services_do_cpu++;
if(cgroup_enable_systemd_services_detailed_memory && cg->memory.updated_detailed && cg->memory.enabled_detailed) services_do_mem_detailed++;
if(cg->memory.updated_usage_in_bytes && cg->memory.enabled_usage_in_bytes == CONFIG_BOOLEAN_YES) services_do_mem_usage++;
if(cg->memory.updated_failcnt && cg->memory.enabled_failcnt == CONFIG_BOOLEAN_YES) services_do_mem_failcnt++;
if(cg->memory.updated_msw_usage_in_bytes && cg->memory.enabled_msw_usage_in_bytes == CONFIG_BOOLEAN_YES) services_do_swap_usage++;
if(cg->io_service_bytes.updated && cg->io_service_bytes.enabled == CONFIG_BOOLEAN_YES) services_do_io++;
if(cg->io_serviced.updated && cg->io_serviced.enabled == CONFIG_BOOLEAN_YES) services_do_io_ops++;
if(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.enabled == CONFIG_BOOLEAN_YES) services_do_throttle_io++;
if(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.enabled == CONFIG_BOOLEAN_YES) services_do_throttle_ops++;
if(cg->io_queued.updated && cg->io_queued.enabled == CONFIG_BOOLEAN_YES) services_do_queued_ops++;
if(cg->io_merged.updated && cg->io_merged.enabled == CONFIG_BOOLEAN_YES) services_do_merged_ops++;
continue;
}
type[0] = '\0';
if(likely(cg->cpuacct_stat.updated && cg->cpuacct_stat.enabled == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_cpu)) {
snprintfz(title, CHART_TITLE_MAX, "CPU Usage (100%% = 1 core)");
cg->st_cpu = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "cpu"
, NULL
, "cpu"
, "cgroup.cpu"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority
, update_every
, RRDSET_TYPE_STACKED
);
rrdset_update_rrdlabels(cg->st_cpu, cg->chart_labels);
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
rrddim_add(cg->st_cpu, "user", NULL, 100, system_hz, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(cg->st_cpu, "system", NULL, 100, system_hz, RRD_ALGORITHM_INCREMENTAL);
}
else {
rrddim_add(cg->st_cpu, "user", NULL, 100, 1000000, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(cg->st_cpu, "system", NULL, 100, 1000000, RRD_ALGORITHM_INCREMENTAL);
}
}
else
rrdset_next(cg->st_cpu);
rrddim_set(cg->st_cpu, "user", cg->cpuacct_stat.user);
rrddim_set(cg->st_cpu, "system", cg->cpuacct_stat.system);
rrdset_done(cg->st_cpu);
if(likely(cg->filename_cpuset_cpus || cg->filename_cpu_cfs_period || cg->filename_cpu_cfs_quota)) {
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
update_cpu_limits(&cg->filename_cpuset_cpus, &cg->cpuset_cpus, cg);
update_cpu_limits(&cg->filename_cpu_cfs_period, &cg->cpu_cfs_period, cg);
update_cpu_limits(&cg->filename_cpu_cfs_quota, &cg->cpu_cfs_quota, cg);
} else {
update_cpu_limits2(cg);
}
if(unlikely(!cg->chart_var_cpu_limit)) {
cg->chart_var_cpu_limit = rrdsetvar_custom_chart_variable_create(cg->st_cpu, "cpu_limit");
if(!cg->chart_var_cpu_limit) {
error("Cannot create cgroup %s chart variable 'cpu_limit'. Will not update its limit anymore.", cg->id);
if(cg->filename_cpuset_cpus) freez(cg->filename_cpuset_cpus);
cg->filename_cpuset_cpus = NULL;
if(cg->filename_cpu_cfs_period) freez(cg->filename_cpu_cfs_period);
cg->filename_cpu_cfs_period = NULL;
if(cg->filename_cpu_cfs_quota) freez(cg->filename_cpu_cfs_quota);
cg->filename_cpu_cfs_quota = NULL;
}
}
else {
NETDATA_DOUBLE value = 0, quota = 0;
if(likely( ((!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) && (cg->filename_cpuset_cpus || (cg->filename_cpu_cfs_period && cg->filename_cpu_cfs_quota)))
|| ((cg->options & CGROUP_OPTIONS_IS_UNIFIED) && cg->filename_cpu_cfs_quota))) {
if(unlikely(cg->cpu_cfs_quota > 0))
quota = (NETDATA_DOUBLE)cg->cpu_cfs_quota / (NETDATA_DOUBLE)cg->cpu_cfs_period;
if(unlikely(quota > 0 && quota < cg->cpuset_cpus))
value = quota * 100;
else
value = (NETDATA_DOUBLE)cg->cpuset_cpus * 100;
}
if(likely(value)) {
rrdsetvar_custom_chart_variable_set(cg->chart_var_cpu_limit, value);
if(unlikely(!cg->st_cpu_limit)) {
snprintfz(title, CHART_TITLE_MAX, "CPU Usage within the limits");
cg->st_cpu_limit = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "cpu_limit"
, NULL
, "cpu"
, "cgroup.cpu_limit"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority - 1
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_cpu_limit, cg->chart_labels);
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED))
rrddim_add(cg->st_cpu_limit, "used", NULL, 1, system_hz, RRD_ALGORITHM_ABSOLUTE);
else
rrddim_add(cg->st_cpu_limit, "used", NULL, 1, 1000000, RRD_ALGORITHM_ABSOLUTE);
cg->prev_cpu_usage = (NETDATA_DOUBLE)(cg->cpuacct_stat.user + cg->cpuacct_stat.system) * 100;
}
else
rrdset_next(cg->st_cpu_limit);
NETDATA_DOUBLE cpu_usage = 0;
cpu_usage = (NETDATA_DOUBLE)(cg->cpuacct_stat.user + cg->cpuacct_stat.system) * 100;
NETDATA_DOUBLE cpu_used = 100 * (cpu_usage - cg->prev_cpu_usage) / (value * update_every);
rrdset_isnot_obsolete(cg->st_cpu_limit);
rrddim_set(cg->st_cpu_limit, "used", (cpu_used > 0)?cpu_used:0);
cg->prev_cpu_usage = cpu_usage;
rrdset_done(cg->st_cpu_limit);
}
else {
rrdsetvar_custom_chart_variable_set(cg->chart_var_cpu_limit, NAN);
if(unlikely(cg->st_cpu_limit)) {
rrdset_is_obsolete(cg->st_cpu_limit);
cg->st_cpu_limit = NULL;
}
}
}
}
}
if (likely(cg->cpuacct_cpu_throttling.updated && cg->cpuacct_cpu_throttling.enabled == CONFIG_BOOLEAN_YES)) {
if (unlikely(!cg->st_cpu_nr_throttled)) {
snprintfz(title, CHART_TITLE_MAX, "CPU Throttled Runnable Periods");
cg->st_cpu_nr_throttled = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "throttled"
, NULL
, "cpu"
, "cgroup.throttled"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 10
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_cpu_nr_throttled, cg->chart_labels);
rrddim_add(cg->st_cpu_nr_throttled, "throttled", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(cg->st_cpu_nr_throttled);
rrddim_set(cg->st_cpu_nr_throttled, "throttled", cg->cpuacct_cpu_throttling.nr_throttled_perc);
rrdset_done(cg->st_cpu_nr_throttled);
}
if (unlikely(!cg->st_cpu_throttled_time)) {
snprintfz(title, CHART_TITLE_MAX, "CPU Throttled Time Duration");
cg->st_cpu_throttled_time = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "throttled_duration"
, NULL
, "cpu"
, "cgroup.throttled_duration"
, title
, "ms"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 15
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_cpu_throttled_time, cg->chart_labels);
rrddim_add(cg->st_cpu_throttled_time, "duration", NULL, 1, 1000000, RRD_ALGORITHM_INCREMENTAL);
} else {
rrdset_next(cg->st_cpu_throttled_time);
rrddim_set(cg->st_cpu_throttled_time, "duration", cg->cpuacct_cpu_throttling.throttled_time);
rrdset_done(cg->st_cpu_throttled_time);
}
}
if (likely(cg->cpuacct_cpu_shares.updated && cg->cpuacct_cpu_shares.enabled == CONFIG_BOOLEAN_YES)) {
if (unlikely(!cg->st_cpu_shares)) {
snprintfz(title, CHART_TITLE_MAX, "CPU Time Relative Share");
cg->st_cpu_shares = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "cpu_shares"
, NULL
, "cpu"
, "cgroup.cpu_shares"
, title
, "shares"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 20
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_cpu_shares, cg->chart_labels);
rrddim_add(cg->st_cpu_shares, "shares", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(cg->st_cpu_shares);
rrddim_set(cg->st_cpu_shares, "shares", cg->cpuacct_cpu_shares.shares);
rrdset_done(cg->st_cpu_shares);
}
}
if(likely(cg->cpuacct_usage.updated && cg->cpuacct_usage.enabled == CONFIG_BOOLEAN_YES)) {
char id[RRD_ID_LENGTH_MAX + 1];
unsigned int i;
if(unlikely(!cg->st_cpu_per_core)) {
snprintfz(title, CHART_TITLE_MAX, "CPU Usage (100%% = 1 core) Per Core");
cg->st_cpu_per_core = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "cpu_per_core"
, NULL
, "cpu"
, "cgroup.cpu_per_core"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 100
, update_every
, RRDSET_TYPE_STACKED
);
rrdset_update_rrdlabels(cg->st_cpu_per_core, cg->chart_labels);
for(i = 0; i < cg->cpuacct_usage.cpus; i++) {
snprintfz(id, RRD_ID_LENGTH_MAX, "cpu%u", i);
rrddim_add(cg->st_cpu_per_core, id, NULL, 100, 1000000000, RRD_ALGORITHM_INCREMENTAL);
}
}
else
rrdset_next(cg->st_cpu_per_core);
for(i = 0; i < cg->cpuacct_usage.cpus ;i++) {
snprintfz(id, RRD_ID_LENGTH_MAX, "cpu%u", i);
rrddim_set(cg->st_cpu_per_core, id, cg->cpuacct_usage.cpu_percpu[i]);
}
rrdset_done(cg->st_cpu_per_core);
}
if(likely(cg->memory.updated_detailed && cg->memory.enabled_detailed == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_mem)) {
snprintfz(title, CHART_TITLE_MAX, "Memory Usage");
cg->st_mem = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "mem"
, NULL
, "mem"
, "cgroup.mem"
, title
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 220
, update_every
, RRDSET_TYPE_STACKED
);
rrdset_update_rrdlabels(cg->st_mem, cg->chart_labels);
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
rrddim_add(cg->st_mem, "cache", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem, "rss", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
if(cg->memory.detailed_has_swap)
rrddim_add(cg->st_mem, "swap", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem, "rss_huge", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem, "mapped_file", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
} else {
rrddim_add(cg->st_mem, "anon", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem, "kernel_stack", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem, "slab", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem, "sock", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem, "anon_thp", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem, "file", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
}
}
else
rrdset_next(cg->st_mem);
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
rrddim_set(cg->st_mem, "cache", cg->memory.total_cache);
rrddim_set(cg->st_mem, "rss", (cg->memory.total_rss > cg->memory.total_rss_huge)?(cg->memory.total_rss - cg->memory.total_rss_huge):0);
if(cg->memory.detailed_has_swap)
rrddim_set(cg->st_mem, "swap", cg->memory.total_swap);
rrddim_set(cg->st_mem, "rss_huge", cg->memory.total_rss_huge);
rrddim_set(cg->st_mem, "mapped_file", cg->memory.total_mapped_file);
} else {
rrddim_set(cg->st_mem, "anon", cg->memory.anon);
rrddim_set(cg->st_mem, "kernel_stack", cg->memory.kernel_stack);
rrddim_set(cg->st_mem, "slab", cg->memory.slab);
rrddim_set(cg->st_mem, "sock", cg->memory.sock);
rrddim_set(cg->st_mem, "anon_thp", cg->memory.anon_thp);
rrddim_set(cg->st_mem, "file", cg->memory.total_mapped_file);
}
rrdset_done(cg->st_mem);
if(unlikely(!cg->st_writeback)) {
snprintfz(title, CHART_TITLE_MAX, "Writeback Memory");
cg->st_writeback = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "writeback"
, NULL
, "mem"
, "cgroup.writeback"
, title
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 300
, update_every
, RRDSET_TYPE_AREA
);
rrdset_update_rrdlabels(cg->st_writeback, cg->chart_labels);
if(cg->memory.detailed_has_dirty)
rrddim_add(cg->st_writeback, "dirty", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_writeback, "writeback", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(cg->st_writeback);
if(cg->memory.detailed_has_dirty)
rrddim_set(cg->st_writeback, "dirty", cg->memory.total_dirty);
rrddim_set(cg->st_writeback, "writeback", cg->memory.total_writeback);
rrdset_done(cg->st_writeback);
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
if(unlikely(!cg->st_mem_activity)) {
snprintfz(title, CHART_TITLE_MAX, "Memory Activity");
cg->st_mem_activity = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "mem_activity"
, NULL
, "mem"
, "cgroup.mem_activity"
, title
, "MiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 400
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_mem_activity, cg->chart_labels);
rrddim_add(cg->st_mem_activity, "pgpgin", "in", system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(cg->st_mem_activity, "pgpgout", "out", -system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(cg->st_mem_activity);
rrddim_set(cg->st_mem_activity, "pgpgin", cg->memory.total_pgpgin);
rrddim_set(cg->st_mem_activity, "pgpgout", cg->memory.total_pgpgout);
rrdset_done(cg->st_mem_activity);
}
if(unlikely(!cg->st_pgfaults)) {
snprintfz(title, CHART_TITLE_MAX, "Memory Page Faults");
cg->st_pgfaults = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "pgfaults"
, NULL
, "mem"
, "cgroup.pgfaults"
, title
, "MiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 500
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_pgfaults, cg->chart_labels);
rrddim_add(cg->st_pgfaults, "pgfault", NULL, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(cg->st_pgfaults, "pgmajfault", "swap", -system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(cg->st_pgfaults);
rrddim_set(cg->st_pgfaults, "pgfault", cg->memory.total_pgfault);
rrddim_set(cg->st_pgfaults, "pgmajfault", cg->memory.total_pgmajfault);
rrdset_done(cg->st_pgfaults);
}
if(likely(cg->memory.updated_usage_in_bytes && cg->memory.enabled_usage_in_bytes == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_mem_usage)) {
snprintfz(title, CHART_TITLE_MAX, "Used Memory");
cg->st_mem_usage = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "mem_usage"
, NULL
, "mem"
, "cgroup.mem_usage"
, title
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 210
, update_every
, RRDSET_TYPE_STACKED
);
rrdset_update_rrdlabels(cg->st_mem_usage, cg->chart_labels);
rrddim_add(cg->st_mem_usage, "ram", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem_usage, "swap", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(cg->st_mem_usage);
rrddim_set(cg->st_mem_usage, "ram", cg->memory.usage_in_bytes);
if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) {
rrddim_set(
cg->st_mem_usage,
"swap",
cg->memory.msw_usage_in_bytes > (cg->memory.usage_in_bytes + cg->memory.total_inactive_file) ?
cg->memory.msw_usage_in_bytes - (cg->memory.usage_in_bytes + cg->memory.total_inactive_file) : 0);
} else {
rrddim_set(cg->st_mem_usage, "swap", cg->memory.msw_usage_in_bytes);
}
rrdset_done(cg->st_mem_usage);
if (likely(update_memory_limits(&cg->filename_memory_limit, &cg->chart_var_memory_limit, &cg->memory_limit, "memory_limit", cg))) {
static unsigned long long ram_total = 0;
if(unlikely(!ram_total)) {
procfile *ff = NULL;
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/meminfo");
ff = procfile_open(config_get("plugin:cgroups", "meminfo filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
if(likely(ff))
ff = procfile_readall(ff);
if(likely(ff && procfile_lines(ff) && !strncmp(procfile_word(ff, 0), "MemTotal", 8)))
ram_total = str2ull(procfile_word(ff, 1)) * 1024;
else {
error("Cannot read file %s. Will not update cgroup %s RAM limit anymore.", filename, cg->id);
freez(cg->filename_memory_limit);
cg->filename_memory_limit = NULL;
}
procfile_close(ff);
}
if(likely(ram_total)) {
unsigned long long memory_limit = ram_total;
if(unlikely(cg->memory_limit < ram_total))
memory_limit = cg->memory_limit;
if(unlikely(!cg->st_mem_usage_limit)) {
snprintfz(title, CHART_TITLE_MAX, "Used RAM within the limits");
cg->st_mem_usage_limit = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "mem_usage_limit"
, NULL
, "mem"
, "cgroup.mem_usage_limit"
, title
, "MiB"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 200
, update_every
, RRDSET_TYPE_STACKED
);
rrdset_update_rrdlabels(cg->st_mem_usage_limit, cg->chart_labels);
rrddim_add(cg->st_mem_usage_limit, "available", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_mem_usage_limit, "used", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(cg->st_mem_usage_limit);
rrdset_isnot_obsolete(cg->st_mem_usage_limit);
rrddim_set(cg->st_mem_usage_limit, "available", memory_limit - cg->memory.usage_in_bytes);
rrddim_set(cg->st_mem_usage_limit, "used", cg->memory.usage_in_bytes);
rrdset_done(cg->st_mem_usage_limit);
if (unlikely(!cg->st_mem_utilization)) {
snprintfz(title, CHART_TITLE_MAX, "Memory Utilization");
cg->st_mem_utilization = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "mem_utilization"
, NULL
, "mem"
, "cgroup.mem_utilization"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 199
, update_every
, RRDSET_TYPE_AREA
);
rrdset_update_rrdlabels(cg->st_mem_utilization, cg->chart_labels);
rrddim_add(cg->st_mem_utilization, "utilization", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
} else
rrdset_next(cg->st_mem_utilization);
if (memory_limit) {
rrdset_isnot_obsolete(cg->st_mem_utilization);
rrddim_set(
cg->st_mem_utilization, "utilization", cg->memory.usage_in_bytes * 100 / memory_limit);
rrdset_done(cg->st_mem_utilization);
}
}
}
else {
if(unlikely(cg->st_mem_usage_limit)) {
rrdset_is_obsolete(cg->st_mem_usage_limit);
cg->st_mem_usage_limit = NULL;
}
if(unlikely(cg->st_mem_utilization)) {
rrdset_is_obsolete(cg->st_mem_utilization);
cg->st_mem_utilization = NULL;
}
}
update_memory_limits(&cg->filename_memoryswap_limit, &cg->chart_var_memoryswap_limit, &cg->memoryswap_limit, "memory_and_swap_limit", cg);
}
if(likely(cg->memory.updated_failcnt && cg->memory.enabled_failcnt == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_mem_failcnt)) {
snprintfz(title, CHART_TITLE_MAX, "Memory Limit Failures");
cg->st_mem_failcnt = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "mem_failcnt"
, NULL
, "mem"
, "cgroup.mem_failcnt"
, title
, "count"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 250
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_mem_failcnt, cg->chart_labels);
rrddim_add(cg->st_mem_failcnt, "failures", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(cg->st_mem_failcnt);
rrddim_set(cg->st_mem_failcnt, "failures", cg->memory.failcnt);
rrdset_done(cg->st_mem_failcnt);
}
if(likely(cg->io_service_bytes.updated && cg->io_service_bytes.enabled == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_io)) {
snprintfz(title, CHART_TITLE_MAX, "I/O Bandwidth (all disks)");
cg->st_io = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "io"
, NULL
, "disk"
, "cgroup.io"
, title
, "KiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 1200
, update_every
, RRDSET_TYPE_AREA
);
rrdset_update_rrdlabels(cg->st_io, cg->chart_labels);
rrddim_add(cg->st_io, "read", NULL, 1, 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(cg->st_io, "write", NULL, -1, 1024, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(cg->st_io);
rrddim_set(cg->st_io, "read", cg->io_service_bytes.Read);
rrddim_set(cg->st_io, "write", cg->io_service_bytes.Write);
rrdset_done(cg->st_io);
}
if(likely(cg->io_serviced.updated && cg->io_serviced.enabled == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_serviced_ops)) {
snprintfz(title, CHART_TITLE_MAX, "Serviced I/O Operations (all disks)");
cg->st_serviced_ops = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "serviced_ops"
, NULL
, "disk"
, "cgroup.serviced_ops"
, title
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 1200
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_serviced_ops, cg->chart_labels);
rrddim_add(cg->st_serviced_ops, "read", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(cg->st_serviced_ops, "write", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(cg->st_serviced_ops);
rrddim_set(cg->st_serviced_ops, "read", cg->io_serviced.Read);
rrddim_set(cg->st_serviced_ops, "write", cg->io_serviced.Write);
rrdset_done(cg->st_serviced_ops);
}
if(likely(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.enabled == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_throttle_io)) {
snprintfz(title, CHART_TITLE_MAX, "Throttle I/O Bandwidth (all disks)");
cg->st_throttle_io = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "throttle_io"
, NULL
, "disk"
, "cgroup.throttle_io"
, title
, "KiB/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 1200
, update_every
, RRDSET_TYPE_AREA
);
rrdset_update_rrdlabels(cg->st_throttle_io, cg->chart_labels);
rrddim_add(cg->st_throttle_io, "read", NULL, 1, 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(cg->st_throttle_io, "write", NULL, -1, 1024, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(cg->st_throttle_io);
rrddim_set(cg->st_throttle_io, "read", cg->throttle_io_service_bytes.Read);
rrddim_set(cg->st_throttle_io, "write", cg->throttle_io_service_bytes.Write);
rrdset_done(cg->st_throttle_io);
}
if(likely(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.enabled == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_throttle_serviced_ops)) {
snprintfz(title, CHART_TITLE_MAX, "Throttle Serviced I/O Operations (all disks)");
cg->st_throttle_serviced_ops = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "throttle_serviced_ops"
, NULL
, "disk"
, "cgroup.throttle_serviced_ops"
, title
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 1200
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_throttle_serviced_ops, cg->chart_labels);
rrddim_add(cg->st_throttle_serviced_ops, "read", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(cg->st_throttle_serviced_ops, "write", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(cg->st_throttle_serviced_ops);
rrddim_set(cg->st_throttle_serviced_ops, "read", cg->throttle_io_serviced.Read);
rrddim_set(cg->st_throttle_serviced_ops, "write", cg->throttle_io_serviced.Write);
rrdset_done(cg->st_throttle_serviced_ops);
}
if(likely(cg->io_queued.updated && cg->io_queued.enabled == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_queued_ops)) {
snprintfz(title, CHART_TITLE_MAX, "Queued I/O Operations (all disks)");
cg->st_queued_ops = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "queued_ops"
, NULL
, "disk"
, "cgroup.queued_ops"
, title
, "operations"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2000
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_queued_ops, cg->chart_labels);
rrddim_add(cg->st_queued_ops, "read", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(cg->st_queued_ops, "write", NULL, -1, 1, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(cg->st_queued_ops);
rrddim_set(cg->st_queued_ops, "read", cg->io_queued.Read);
rrddim_set(cg->st_queued_ops, "write", cg->io_queued.Write);
rrdset_done(cg->st_queued_ops);
}
if(likely(cg->io_merged.updated && cg->io_merged.enabled == CONFIG_BOOLEAN_YES)) {
if(unlikely(!cg->st_merged_ops)) {
snprintfz(title, CHART_TITLE_MAX, "Merged I/O Operations (all disks)");
cg->st_merged_ops = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "merged_ops"
, NULL
, "disk"
, "cgroup.merged_ops"
, title
, "operations/s"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2100
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(cg->st_merged_ops, cg->chart_labels);
rrddim_add(cg->st_merged_ops, "read", NULL, 1, 1024, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(cg->st_merged_ops, "write", NULL, -1, 1024, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(cg->st_merged_ops);
rrddim_set(cg->st_merged_ops, "read", cg->io_merged.Read);
rrddim_set(cg->st_merged_ops, "write", cg->io_merged.Write);
rrdset_done(cg->st_merged_ops);
}
if (cg->options & CGROUP_OPTIONS_IS_UNIFIED) {
struct pressure *res = &cg->cpu_pressure;
if (likely(res->updated && res->some.enabled)) {
struct pressure_charts *pcs;
pcs = &res->some;
if (unlikely(!pcs->share_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "CPU some pressure");
chart = pcs->share_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "cpu_some_pressure"
, NULL
, "cpu"
, "cgroup.cpu_some_pressure"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2200
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->share_time.st, cg->chart_labels);
pcs->share_time.rd10 = rrddim_add(chart, "some 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd60 = rrddim_add(chart, "some 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd300 = rrddim_add(chart, "some 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(pcs->share_time.st);
}
if (unlikely(!pcs->total_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "CPU some pressure stall time");
chart = pcs->total_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "cpu_some_pressure_stall_time"
, NULL
, "cpu"
, "cgroup.cpu_some_pressure_stall_time"
, title
, "ms"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2220
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->total_time.st, cg->chart_labels);
pcs->total_time.rdtotal = rrddim_add(chart, "time", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
} else {
rrdset_next(pcs->total_time.st);
}
update_pressure_charts(pcs);
}
if (likely(res->updated && res->full.enabled)) {
struct pressure_charts *pcs;
pcs = &res->full;
if (unlikely(!pcs->share_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "CPU full pressure");
chart = pcs->share_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "cpu_full_pressure"
, NULL
, "cpu"
, "cgroup.cpu_full_pressure"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2240
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->share_time.st, cg->chart_labels);
pcs->share_time.rd10 = rrddim_add(chart, "full 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd60 = rrddim_add(chart, "full 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd300 = rrddim_add(chart, "full 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(pcs->share_time.st);
}
if (unlikely(!pcs->total_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "CPU full pressure stall time");
chart = pcs->total_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "cpu_full_pressure_stall_time"
, NULL
, "cpu"
, "cgroup.cpu_full_pressure_stall_time"
, title
, "ms"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2260
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->total_time.st, cg->chart_labels);
pcs->total_time.rdtotal = rrddim_add(chart, "time", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
} else {
rrdset_next(pcs->total_time.st);
}
update_pressure_charts(pcs);
}
res = &cg->memory_pressure;
if (likely(res->updated && res->some.enabled)) {
struct pressure_charts *pcs;
pcs = &res->some;
if (unlikely(!pcs->share_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "Memory some pressure");
chart = pcs->share_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "mem_some_pressure"
, NULL
, "mem"
, "cgroup.memory_some_pressure"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2300
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->share_time.st, cg->chart_labels);
pcs->share_time.rd10 = rrddim_add(chart, "some 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd60 = rrddim_add(chart, "some 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd300 = rrddim_add(chart, "some 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(pcs->share_time.st);
}
if (unlikely(!pcs->total_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "Memory some pressure stall time");
chart = pcs->total_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "memory_some_pressure_stall_time"
, NULL
, "mem"
, "cgroup.memory_some_pressure_stall_time"
, title
, "ms"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2320
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->total_time.st, cg->chart_labels);
pcs->total_time.rdtotal = rrddim_add(chart, "time", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
} else {
rrdset_next(pcs->total_time.st);
}
update_pressure_charts(pcs);
}
if (likely(res->updated && res->full.enabled)) {
struct pressure_charts *pcs;
pcs = &res->full;
if (unlikely(!pcs->share_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "Memory full pressure");
chart = pcs->share_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "mem_full_pressure"
, NULL
, "mem"
, "cgroup.memory_full_pressure"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2340
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->share_time.st, cg->chart_labels);
pcs->share_time.rd10 = rrddim_add(chart, "full 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd60 = rrddim_add(chart, "full 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd300 = rrddim_add(chart, "full 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(pcs->share_time.st);
}
if (unlikely(!pcs->total_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "Memory full pressure stall time");
chart = pcs->total_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "memory_full_pressure_stall_time"
, NULL
, "mem"
, "cgroup.memory_full_pressure_stall_time"
, title
, "ms"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2360
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->total_time.st, cg->chart_labels);
pcs->total_time.rdtotal = rrddim_add(chart, "time", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
} else {
rrdset_next(pcs->total_time.st);
}
update_pressure_charts(pcs);
}
res = &cg->io_pressure;
if (likely(res->updated && res->some.enabled)) {
struct pressure_charts *pcs;
pcs = &res->some;
if (unlikely(!pcs->share_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "I/O some pressure");
chart = pcs->share_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "io_some_pressure"
, NULL
, "disk"
, "cgroup.io_some_pressure"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2400
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->share_time.st, cg->chart_labels);
pcs->share_time.rd10 = rrddim_add(chart, "some 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd60 = rrddim_add(chart, "some 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd300 = rrddim_add(chart, "some 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(pcs->share_time.st);
}
if (unlikely(!pcs->total_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "I/O some pressure stall time");
chart = pcs->total_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "io_some_pressure_stall_time"
, NULL
, "disk"
, "cgroup.io_some_pressure_stall_time"
, title
, "ms"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2420
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->total_time.st, cg->chart_labels);
pcs->total_time.rdtotal = rrddim_add(chart, "time", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
} else {
rrdset_next(pcs->total_time.st);
}
update_pressure_charts(pcs);
}
if (likely(res->updated && res->full.enabled)) {
struct pressure_charts *pcs;
pcs = &res->full;
if (unlikely(!pcs->share_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "I/O full pressure");
chart = pcs->share_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "io_full_pressure"
, NULL
, "disk"
, "cgroup.io_full_pressure"
, title
, "percentage"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2440
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->share_time.st, cg->chart_labels);
pcs->share_time.rd10 = rrddim_add(chart, "full 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd60 = rrddim_add(chart, "full 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
pcs->share_time.rd300 = rrddim_add(chart, "full 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(pcs->share_time.st);
}
if (unlikely(!pcs->total_time.st)) {
RRDSET *chart;
snprintfz(title, CHART_TITLE_MAX, "I/O full pressure stall time");
chart = pcs->total_time.st = rrdset_create_localhost(
cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX)
, "io_full_pressure_stall_time"
, NULL
, "disk"
, "cgroup.io_full_pressure_stall_time"
, title
, "ms"
, PLUGIN_CGROUPS_NAME
, PLUGIN_CGROUPS_MODULE_CGROUPS_NAME
, cgroup_containers_chart_priority + 2460
, update_every
, RRDSET_TYPE_LINE
);
rrdset_update_rrdlabels(chart = pcs->total_time.st, cg->chart_labels);
pcs->total_time.rdtotal = rrddim_add(chart, "time", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
} else {
rrdset_next(pcs->total_time.st);
}
update_pressure_charts(pcs);
}
}
}
if(likely(cgroup_enable_systemd_services))
update_systemd_services_charts(update_every, services_do_cpu, services_do_mem_usage, services_do_mem_detailed
, services_do_mem_failcnt, services_do_swap_usage, services_do_io
, services_do_io_ops, services_do_throttle_io, services_do_throttle_ops
, services_do_queued_ops, services_do_merged_ops
);
debug(D_CGROUP, "done updating cgroups charts");
}
// ----------------------------------------------------------------------------
// cgroups main
static void cgroup_main_cleanup(void *ptr) {
worker_unregister();
struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
static_thread->enabled = NETDATA_MAIN_THREAD_EXITING;
info("cleaning up...");
usec_t max = 2 * USEC_PER_SEC, step = 50000;
if (!discovery_thread.exited) {
info("stopping discovery thread worker");
uv_mutex_lock(&discovery_thread.mutex);
discovery_thread.start_discovery = 1;
uv_cond_signal(&discovery_thread.cond_var);
uv_mutex_unlock(&discovery_thread.mutex);
}
info("waiting for discovery thread to finish...");
while (!discovery_thread.exited && max > 0) {
max -= step;
sleep_usec(step);
}
if (shm_mutex_cgroup_ebpf != SEM_FAILED) {
sem_close(shm_mutex_cgroup_ebpf);
}
if (shm_cgroup_ebpf.header) {
munmap(shm_cgroup_ebpf.header, shm_cgroup_ebpf.header->body_length);
}
if (shm_fd_cgroup_ebpf > 0) {
close(shm_fd_cgroup_ebpf);
}
static_thread->enabled = NETDATA_MAIN_THREAD_EXITED;
}
void *cgroups_main(void *ptr) {
worker_register("CGROUPS");
worker_register_job_name(WORKER_CGROUPS_LOCK, "lock");
worker_register_job_name(WORKER_CGROUPS_READ, "read");
worker_register_job_name(WORKER_CGROUPS_CHART, "chart");
netdata_thread_cleanup_push(cgroup_main_cleanup, ptr);
if (getenv("KUBERNETES_SERVICE_HOST") != NULL && getenv("KUBERNETES_SERVICE_PORT") != NULL) {
is_inside_k8s = 1;
cgroup_enable_cpuacct_cpu_shares = CONFIG_BOOLEAN_YES;
}
read_cgroup_plugin_configuration();
netdata_cgroup_ebpf_initialize_shm();
if (uv_mutex_init(&cgroup_root_mutex)) {
error("CGROUP: cannot initialize mutex for the main cgroup list");
goto exit;
}
// dispatch a discovery worker thread
discovery_thread.start_discovery = 0;
discovery_thread.exited = 0;
if (uv_mutex_init(&discovery_thread.mutex)) {
error("CGROUP: cannot initialize mutex for discovery thread");
goto exit;
}
if (uv_cond_init(&discovery_thread.cond_var)) {
error("CGROUP: cannot initialize conditional variable for discovery thread");
goto exit;
}
int error = uv_thread_create(&discovery_thread.thread, cgroup_discovery_worker, NULL);
if (error) {
error("CGROUP: cannot create thread worker. uv_thread_create(): %s", uv_strerror(error));
goto exit;
}
uv_thread_set_name_np(discovery_thread.thread, "PLUGIN[cgroups]");
heartbeat_t hb;
heartbeat_init(&hb);
usec_t step = cgroup_update_every * USEC_PER_SEC;
usec_t find_every = cgroup_check_for_new_every * USEC_PER_SEC, find_dt = 0;
while(!netdata_exit) {
worker_is_idle();
usec_t hb_dt = heartbeat_next(&hb, step);
if(unlikely(netdata_exit)) break;
find_dt += hb_dt;
if (unlikely(find_dt >= find_every || (!is_inside_k8s && cgroups_check))) {
uv_cond_signal(&discovery_thread.cond_var);
discovery_thread.start_discovery = 1;
find_dt = 0;
cgroups_check = 0;
}
worker_is_busy(WORKER_CGROUPS_LOCK);
uv_mutex_lock(&cgroup_root_mutex);
worker_is_busy(WORKER_CGROUPS_READ);
read_all_discovered_cgroups(cgroup_root);
worker_is_busy(WORKER_CGROUPS_CHART);
update_cgroup_charts(cgroup_update_every);
worker_is_idle();
uv_mutex_unlock(&cgroup_root_mutex);
}
exit:
worker_unregister();
netdata_thread_cleanup_pop(1);
return NULL;
}
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