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netdata/database/sqlite/sqlite_aclk_alert.c

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// SPDX-License-Identifier: GPL-3.0-or-later
#include "sqlite_functions.h"
#include "sqlite_aclk_alert.h"
#ifdef ENABLE_ACLK
#include "../../aclk/aclk_alarm_api.h"
#include "../../aclk/aclk.h"
#endif
time_t removed_when(uint32_t alarm_id, uint32_t before_unique_id, uint32_t after_unique_id, char *uuid_str) {
sqlite3_stmt *res = NULL;
int rc = 0;
time_t when = 0;
char sql[ACLK_SYNC_QUERY_SIZE];
snprintfz(sql,ACLK_SYNC_QUERY_SIZE-1, "select when_key from health_log_%s where alarm_id = %u " \
"and unique_id > %u and unique_id < %u " \
"and new_status = -2;", uuid_str, alarm_id, after_unique_id, before_unique_id);
rc = sqlite3_prepare_v2(db_meta, sql, -1, &res, 0);
if (rc != SQLITE_OK) {
error_report("Failed to prepare statement when trying to find removed gap.");
return 0;
}
rc = sqlite3_step_monitored(res);
if (likely(rc == SQLITE_ROW)) {
when = (time_t) sqlite3_column_int64(res, 0);
}
rc = sqlite3_finalize(res);
if (unlikely(rc != SQLITE_OK))
error_report("Failed to finalize statement when trying to find removed gap, rc = %d", rc);
return when;
}
#define MAX_REMOVED_PERIOD 900
//decide if some events should be sent or not
int should_send_to_cloud(RRDHOST *host, ALARM_ENTRY *ae)
{
sqlite3_stmt *res = NULL;
char uuid_str[GUID_LEN + 1];
uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
int send = 1, rc = 0;
if (ae->new_status == RRDCALC_STATUS_REMOVED || ae->new_status == RRDCALC_STATUS_UNINITIALIZED) {
return 0;
}
if (unlikely(uuid_is_null(ae->config_hash_id)))
return 0;
char sql[ACLK_SYNC_QUERY_SIZE];
uuid_t config_hash_id;
RRDCALC_STATUS status;
uint32_t unique_id;
//get the previous sent event of this alarm_id
snprintfz(sql,ACLK_SYNC_QUERY_SIZE-1, "select hl.new_status, hl.config_hash_id, hl.unique_id from health_log_%s hl, aclk_alert_%s aa \
where hl.unique_id = aa.alert_unique_id \
and hl.alarm_id = %u and hl.unique_id <> %u \
order by alarm_event_id desc LIMIT 1;", uuid_str, uuid_str, ae->alarm_id, ae->unique_id);
rc = sqlite3_prepare_v2(db_meta, sql, -1, &res, 0);
if (rc != SQLITE_OK) {
error_report("Failed to prepare statement when trying to filter alert events.");
send = 1;
return send;
}
rc = sqlite3_step_monitored(res);
if (likely(rc == SQLITE_ROW)) {
status = (RRDCALC_STATUS) sqlite3_column_int(res, 0);
if (sqlite3_column_type(res, 1) != SQLITE_NULL)
uuid_copy(config_hash_id, *((uuid_t *) sqlite3_column_blob(res, 1)));
unique_id = (uint32_t) sqlite3_column_int64(res, 2);
} else {
send = 1;
goto done;
}
if (ae->new_status != (RRDCALC_STATUS)status) {
send = 1;
goto done;
}
if (uuid_compare(ae->config_hash_id, config_hash_id)) {
send = 1;
goto done;
}
//same status, same config
if (ae->new_status == RRDCALC_STATUS_CLEAR) {
send = 0;
goto done;
}
//detect a long off period of the agent, TODO make global
if (ae->new_status == RRDCALC_STATUS_WARNING || ae->new_status == RRDCALC_STATUS_CRITICAL) {
time_t when = removed_when(ae->alarm_id, ae->unique_id, unique_id, uuid_str);
if (when && (when + (time_t)MAX_REMOVED_PERIOD) < ae->when) {
send = 1;
goto done;
} else {
send = 0;
goto done;
}
}
done:
rc = sqlite3_finalize(res);
if (unlikely(rc != SQLITE_OK))
error_report("Failed to finalize statement when trying to filter alert events, rc = %d", rc);
return send;
}
// will replace call to aclk_update_alarm in health/health_log.c
// and handle both cases
int sql_queue_alarm_to_aclk(RRDHOST *host, ALARM_ENTRY *ae, int skip_filter)
{
if (!claimed())
return 0;
if (ae->flags & HEALTH_ENTRY_FLAG_ACLK_QUEUED) {
return 0;
}
if (!skip_filter) {
if (!should_send_to_cloud(host, ae)) {
return 0;
}
}
int rc = 0;
CHECK_SQLITE_CONNECTION(db_meta);
sqlite3_stmt *res_alert = NULL;
char uuid_str[GUID_LEN + 1];
uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
BUFFER *sql = buffer_create(1024);
buffer_sprintf(
sql,
"INSERT INTO aclk_alert_%s (alert_unique_id, date_created) "
"VALUES (@alert_unique_id, unixepoch()) on conflict (alert_unique_id) do nothing; ",
uuid_str);
rc = sqlite3_prepare_v2(db_meta, buffer_tostring(sql), -1, &res_alert, 0);
if (unlikely(rc != SQLITE_OK)) {
error_report("Failed to prepare statement to store alert event");
buffer_free(sql);
return 1;
}
rc = sqlite3_bind_int(res_alert, 1, ae->unique_id);
if (unlikely(rc != SQLITE_OK))
goto bind_fail;
rc = execute_insert(res_alert);
if (unlikely(rc != SQLITE_DONE)) {
error_report("Failed to store alert event %u, rc = %d", ae->unique_id, rc);
goto bind_fail;
}
ae->flags |= HEALTH_ENTRY_FLAG_ACLK_QUEUED;
struct aclk_database_worker_config *wc = (struct aclk_database_worker_config *)host->dbsync_worker;
if (wc) {
wc->pause_alert_updates = 0;
}
bind_fail:
if (unlikely(sqlite3_finalize(res_alert) != SQLITE_OK))
error_report("Failed to reset statement in store alert event, rc = %d", rc);
buffer_free(sql);
return 0;
}
int rrdcalc_status_to_proto_enum(RRDCALC_STATUS status)
{
#ifdef ENABLE_ACLK
switch(status) {
case RRDCALC_STATUS_REMOVED:
return ALARM_STATUS_REMOVED;
case RRDCALC_STATUS_UNDEFINED:
return ALARM_STATUS_NOT_A_NUMBER;
case RRDCALC_STATUS_CLEAR:
return ALARM_STATUS_CLEAR;
case RRDCALC_STATUS_WARNING:
return ALARM_STATUS_WARNING;
case RRDCALC_STATUS_CRITICAL:
return ALARM_STATUS_CRITICAL;
default:
return ALARM_STATUS_UNKNOWN;
}
#else
UNUSED(status);
return 1;
#endif
}
void aclk_push_alert_event(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
{
#ifndef ENABLE_ACLK
UNUSED(wc);
UNUSED(cmd);
#else
int rc;
if (unlikely(!wc->alert_updates)) {
log_access("ACLK STA [%s (%s)]: Ignoring alert push event, updates have been turned off for this node.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A");
return;
}
char *claim_id = get_agent_claimid();
if (unlikely(!claim_id))
return;
if (unlikely(!wc->host)) {
freez(claim_id);
return;
}
BUFFER *sql = buffer_create(1024);
if (wc->alerts_start_seq_id != 0) {
buffer_sprintf(
sql,
"UPDATE aclk_alert_%s SET date_submitted = NULL, date_cloud_ack = NULL WHERE sequence_id >= %"PRIu64
"; UPDATE aclk_alert_%s SET date_cloud_ack = unixepoch() WHERE sequence_id < %"PRIu64
" and date_cloud_ack is null "
"; UPDATE aclk_alert_%s SET date_submitted = unixepoch() WHERE sequence_id < %"PRIu64
" and date_submitted is null",
wc->uuid_str,
wc->alerts_start_seq_id,
wc->uuid_str,
wc->alerts_start_seq_id,
wc->uuid_str,
wc->alerts_start_seq_id);
db_execute(buffer_tostring(sql));
buffer_reset(sql);
wc->alerts_start_seq_id = 0;
}
int limit = cmd.count > 0 ? cmd.count : 1;
sqlite3_stmt *res = NULL;
buffer_sprintf(sql, "select aa.sequence_id, hl.unique_id, hl.alarm_id, hl.config_hash_id, hl.updated_by_id, hl.when_key, \
hl.duration, hl.non_clear_duration, hl.flags, hl.exec_run_timestamp, hl.delay_up_to_timestamp, hl.name, \
hl.chart, hl.family, hl.exec, hl.recipient, hl.source, hl.units, hl.info, hl.exec_code, hl.new_status, \
hl.old_status, hl.delay, hl.new_value, hl.old_value, hl.last_repeat, hl.chart_context \
from health_log_%s hl, aclk_alert_%s aa \
where hl.unique_id = aa.alert_unique_id and aa.date_submitted is null \
order by aa.sequence_id asc limit %d;", wc->uuid_str, wc->uuid_str, limit);
rc = sqlite3_prepare_v2(db_meta, buffer_tostring(sql), -1, &res, 0);
if (rc != SQLITE_OK) {
error_report("Failed to prepare statement when trying to send an alert update via ACLK");
buffer_free(sql);
freez(claim_id);
return;
}
char uuid_str[GUID_LEN + 1];
uint64_t first_sequence_id = 0;
uint64_t last_sequence_id = 0;
static __thread uint64_t log_first_sequence_id = 0;
static __thread uint64_t log_last_sequence_id = 0;
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
struct alarm_log_entry alarm_log;
char old_value_string[100 + 1];
char new_value_string[100 + 1];
alarm_log.node_id = wc->node_id;
alarm_log.claim_id = claim_id;
alarm_log.chart = strdupz((char *)sqlite3_column_text(res, 12));
alarm_log.name = strdupz((char *)sqlite3_column_text(res, 11));
alarm_log.family = sqlite3_column_bytes(res, 13) > 0 ? strdupz((char *)sqlite3_column_text(res, 13)) : NULL;
alarm_log.batch_id = wc->alerts_batch_id;
alarm_log.sequence_id = (uint64_t) sqlite3_column_int64(res, 0);
alarm_log.when = (time_t) sqlite3_column_int64(res, 5);
uuid_unparse_lower(*((uuid_t *) sqlite3_column_blob(res, 3)), uuid_str);
alarm_log.config_hash = strdupz((char *)uuid_str);
alarm_log.utc_offset = wc->host->utc_offset;
alarm_log.timezone = strdupz(rrdhost_abbrev_timezone(wc->host));
alarm_log.exec_path = sqlite3_column_bytes(res, 14) > 0 ? strdupz((char *)sqlite3_column_text(res, 14)) :
strdupz((char *)string2str(wc->host->health_default_exec));
alarm_log.conf_source = strdupz((char *)sqlite3_column_text(res, 16));
char *edit_command = sqlite3_column_bytes(res, 16) > 0 ?
health_edit_command_from_source((char *)sqlite3_column_text(res, 16)) :
strdupz("UNKNOWN=0=UNKNOWN");
alarm_log.command = strdupz(edit_command);
alarm_log.duration = (time_t) sqlite3_column_int64(res, 6);
alarm_log.non_clear_duration = (time_t) sqlite3_column_int64(res, 7);
alarm_log.status = rrdcalc_status_to_proto_enum((RRDCALC_STATUS) sqlite3_column_int(res, 20));
alarm_log.old_status = rrdcalc_status_to_proto_enum((RRDCALC_STATUS) sqlite3_column_int(res, 21));
alarm_log.delay = (int) sqlite3_column_int(res, 22);
alarm_log.delay_up_to_timestamp = (time_t) sqlite3_column_int64(res, 10);
alarm_log.last_repeat = (time_t) sqlite3_column_int64(res, 25);
alarm_log.silenced = ((sqlite3_column_int64(res, 8) & HEALTH_ENTRY_FLAG_SILENCED) ||
(sqlite3_column_type(res, 15) != SQLITE_NULL &&
!strncmp((char *)sqlite3_column_text(res, 15), "silent", 6))) ?
1 :
0;
alarm_log.value_string =
sqlite3_column_type(res, 23) == SQLITE_NULL ?
strdupz((char *)"-") :
strdupz((char *)format_value_and_unit(
new_value_string, 100, sqlite3_column_double(res, 23), (char *)sqlite3_column_text(res, 17), -1));
alarm_log.old_value_string =
sqlite3_column_type(res, 24) == SQLITE_NULL ?
strdupz((char *)"-") :
strdupz((char *)format_value_and_unit(
old_value_string, 100, sqlite3_column_double(res, 24), (char *)sqlite3_column_text(res, 17), -1));
alarm_log.value = (NETDATA_DOUBLE) sqlite3_column_double(res, 23);
alarm_log.old_value = (NETDATA_DOUBLE) sqlite3_column_double(res, 24);
alarm_log.updated = (sqlite3_column_int64(res, 8) & HEALTH_ENTRY_FLAG_UPDATED) ? 1 : 0;
alarm_log.rendered_info = sqlite3_column_type(res, 18) == SQLITE_NULL ?
strdupz((char *)"") :
strdupz((char *)sqlite3_column_text(res, 18));
alarm_log.chart_context = sqlite3_column_type(res, 26) == SQLITE_NULL ?
strdupz((char *)"") :
strdupz((char *)sqlite3_column_text(res, 26));
aclk_send_alarm_log_entry(&alarm_log);
if (first_sequence_id == 0)
first_sequence_id = (uint64_t) sqlite3_column_int64(res, 0);
if (log_first_sequence_id == 0)
log_first_sequence_id = (uint64_t) sqlite3_column_int64(res, 0);
last_sequence_id = (uint64_t) sqlite3_column_int64(res, 0);
log_last_sequence_id = (uint64_t) sqlite3_column_int64(res, 0);
destroy_alarm_log_entry(&alarm_log);
freez(edit_command);
}
if (first_sequence_id) {
buffer_flush(sql);
buffer_sprintf(sql, "UPDATE aclk_alert_%s SET date_submitted=unixepoch() "
"WHERE date_submitted IS NULL AND sequence_id BETWEEN %" PRIu64 " AND %" PRIu64 ";",
wc->uuid_str, first_sequence_id, last_sequence_id);
db_execute(buffer_tostring(sql));
} else {
if (log_first_sequence_id)
log_access(
"ACLK RES [%s (%s)]: ALERTS SENT from %" PRIu64 " to %" PRIu64 " batch=%" PRIu64,
wc->node_id,
wc->host ? rrdhost_hostname(wc->host) : "N/A",
log_first_sequence_id,
log_last_sequence_id,
wc->alerts_batch_id);
log_first_sequence_id = 0;
log_last_sequence_id = 0;
wc->pause_alert_updates = 1;
}
rc = sqlite3_finalize(res);
if (unlikely(rc != SQLITE_OK))
error_report("Failed to finalize statement to send alert entries from the database, rc = %d", rc);
freez(claim_id);
buffer_free(sql);
#endif
return;
}
void sql_queue_existing_alerts_to_aclk(RRDHOST *host)
{
char uuid_str[GUID_LEN + 1];
uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
BUFFER *sql = buffer_create(1024);
buffer_sprintf(sql,"delete from aclk_alert_%s; " \
"insert into aclk_alert_%s (alert_unique_id, date_created) " \
"select unique_id alert_unique_id, unixepoch() from health_log_%s " \
"where new_status <> 0 and new_status <> -2 and config_hash_id is not null and updated_by_id = 0 " \
"order by unique_id asc on conflict (alert_unique_id) do nothing;", uuid_str, uuid_str, uuid_str);
db_execute(buffer_tostring(sql));
buffer_free(sql);
struct aclk_database_worker_config *wc = (struct aclk_database_worker_config *)host->dbsync_worker;
if (wc) {
wc->pause_alert_updates = 0;
}
}
void aclk_send_alarm_health_log(char *node_id)
{
if (unlikely(!node_id))
return;
struct aclk_database_worker_config *wc = find_inactive_wc_by_node_id(node_id);
if (likely(!wc)) {
RRDHOST *host = find_host_by_node_id(node_id);
if (likely(host))
wc = (struct aclk_database_worker_config *)host->dbsync_worker;
}
if (!wc) {
log_access("ACLK REQ [%s (N/A)]: HEALTH LOG REQUEST RECEIVED FOR INVALID NODE", node_id);
return;
}
log_access("ACLK REQ [%s (%s)]: HEALTH LOG REQUEST RECEIVED", node_id, wc->hostname ? wc->hostname : "N/A");
struct aclk_database_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = ACLK_DATABASE_ALARM_HEALTH_LOG;
aclk_database_enq_cmd(wc, &cmd);
return;
}
void aclk_push_alarm_health_log(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
{
UNUSED(cmd);
#ifndef ENABLE_ACLK
UNUSED(wc);
#else
int rc;
char *claim_id = get_agent_claimid();
if (unlikely(!claim_id))
return;
RRDHOST *host = wc->host;
if (unlikely(!host)) {
host = find_host_by_node_id(wc->node_id);
if (unlikely(!host)) {
log_access(
"AC [%s (N/A)]: ACLK synchronization thread for %s is not yet linked to HOST.",
wc->node_id,
wc->host_guid);
freez(claim_id);
return;
}
}
uint64_t first_sequence = 0;
uint64_t last_sequence = 0;
struct timeval first_timestamp;
struct timeval last_timestamp;
BUFFER *sql = buffer_create(1024);
sqlite3_stmt *res = NULL;
//TODO: make this better: include info from health log too
buffer_sprintf(sql, "SELECT MIN(sequence_id), MIN(date_created), MAX(sequence_id), MAX(date_created) " \
"FROM aclk_alert_%s;", wc->uuid_str);
rc = sqlite3_prepare_v2(db_meta, buffer_tostring(sql), -1, &res, 0);
if (rc != SQLITE_OK) {
error_report("Failed to prepare statement to get health log statistics from the database");
buffer_free(sql);
freez(claim_id);
return;
}
first_timestamp.tv_sec = 0;
first_timestamp.tv_usec = 0;
last_timestamp.tv_sec = 0;
last_timestamp.tv_usec = 0;
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
first_sequence = sqlite3_column_bytes(res, 0) > 0 ? (uint64_t) sqlite3_column_int64(res, 0) : 0;
if (sqlite3_column_bytes(res, 1) > 0) {
first_timestamp.tv_sec = sqlite3_column_int64(res, 1);
}
last_sequence = sqlite3_column_bytes(res, 2) > 0 ? (uint64_t) sqlite3_column_int64(res, 2) : 0;
if (sqlite3_column_bytes(res, 3) > 0) {
last_timestamp.tv_sec = sqlite3_column_int64(res, 3);
}
}
struct alarm_log_entries log_entries;
log_entries.first_seq_id = first_sequence;
log_entries.first_when = first_timestamp;
log_entries.last_seq_id = last_sequence;
log_entries.last_when = last_timestamp;
struct alarm_log_health alarm_log;
alarm_log.claim_id = claim_id;
alarm_log.node_id = wc->node_id;
alarm_log.log_entries = log_entries;
alarm_log.status = wc->alert_updates == 0 ? 2 : 1;
alarm_log.enabled = (int)host->health_enabled;
wc->alert_sequence_id = last_sequence;
aclk_send_alarm_log_health(&alarm_log);
log_access("ACLK RES [%s (%s)]: HEALTH LOG SENT from %"PRIu64" to %"PRIu64, wc->node_id, wc->hostname ? wc->hostname : "N/A", first_sequence, last_sequence);
rc = sqlite3_finalize(res);
if (unlikely(rc != SQLITE_OK))
error_report("Failed to reset statement to get health log statistics from the database, rc = %d", rc);
freez(claim_id);
buffer_free(sql);
aclk_alert_reloaded = 1;
#endif
return;
}
void aclk_send_alarm_configuration(char *config_hash)
{
if (unlikely(!config_hash))
return;
struct aclk_database_worker_config *wc = (struct aclk_database_worker_config *) localhost->dbsync_worker;
if (unlikely(!wc)) {
return;
}
log_access("ACLK REQ [%s (%s)]: Request to send alert config %s.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", config_hash);
struct aclk_database_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = ACLK_DATABASE_PUSH_ALERT_CONFIG;
cmd.data_param = (void *) strdupz(config_hash);
cmd.completion = NULL;
aclk_database_enq_cmd(wc, &cmd);
return;
}
#define SQL_SELECT_ALERT_CONFIG "SELECT alarm, template, on_key, class, type, component, os, hosts, plugin," \
"module, charts, families, lookup, every, units, green, red, calc, warn, crit, to_key, exec, delay, repeat, info," \
"options, host_labels, p_db_lookup_dimensions, p_db_lookup_method, p_db_lookup_options, p_db_lookup_after," \
"p_db_lookup_before, p_update_every FROM alert_hash WHERE hash_id = @hash_id;"
int aclk_push_alert_config_event(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
{
UNUSED(wc);
#ifndef ENABLE_ACLK
UNUSED(cmd);
#else
int rc = 0;
CHECK_SQLITE_CONNECTION(db_meta);
sqlite3_stmt *res = NULL;
char *config_hash = (char *) cmd.data_param;
rc = sqlite3_prepare_v2(db_meta, SQL_SELECT_ALERT_CONFIG, -1, &res, 0);
if (rc != SQLITE_OK) {
error_report("Failed to prepare statement when trying to fetch an alarm hash configuration");
return 1;
}
uuid_t hash_uuid;
if (uuid_parse(config_hash, hash_uuid))
return 1;
rc = sqlite3_bind_blob(res, 1, &hash_uuid , sizeof(hash_uuid), SQLITE_STATIC);
if (unlikely(rc != SQLITE_OK))
goto bind_fail;
struct aclk_alarm_configuration alarm_config;
struct provide_alarm_configuration p_alarm_config;
p_alarm_config.cfg_hash = NULL;
if (sqlite3_step_monitored(res) == SQLITE_ROW) {
alarm_config.alarm = sqlite3_column_bytes(res, 0) > 0 ? strdupz((char *)sqlite3_column_text(res, 0)) : NULL;
alarm_config.tmpl = sqlite3_column_bytes(res, 1) > 0 ? strdupz((char *)sqlite3_column_text(res, 1)) : NULL;
alarm_config.on_chart = sqlite3_column_bytes(res, 2) > 0 ? strdupz((char *)sqlite3_column_text(res, 2)) : NULL;
alarm_config.classification = sqlite3_column_bytes(res, 3) > 0 ? strdupz((char *)sqlite3_column_text(res, 3)) : NULL;
alarm_config.type = sqlite3_column_bytes(res, 4) > 0 ? strdupz((char *)sqlite3_column_text(res, 4)) : NULL;
alarm_config.component = sqlite3_column_bytes(res, 5) > 0 ? strdupz((char *)sqlite3_column_text(res, 5)) : NULL;
alarm_config.os = sqlite3_column_bytes(res, 6) > 0 ? strdupz((char *)sqlite3_column_text(res, 6)) : NULL;
alarm_config.hosts = sqlite3_column_bytes(res, 7) > 0 ? strdupz((char *)sqlite3_column_text(res, 7)) : NULL;
alarm_config.plugin = sqlite3_column_bytes(res, 8) > 0 ? strdupz((char *)sqlite3_column_text(res, 8)) : NULL;
alarm_config.module = sqlite3_column_bytes(res, 9) > 0 ? strdupz((char *)sqlite3_column_text(res, 9)) : NULL;
alarm_config.charts = sqlite3_column_bytes(res, 10) > 0 ? strdupz((char *)sqlite3_column_text(res, 10)) : NULL;
alarm_config.families = sqlite3_column_bytes(res, 11) > 0 ? strdupz((char *)sqlite3_column_text(res, 11)) : NULL;
alarm_config.lookup = sqlite3_column_bytes(res, 12) > 0 ? strdupz((char *)sqlite3_column_text(res, 12)) : NULL;
alarm_config.every = sqlite3_column_bytes(res, 13) > 0 ? strdupz((char *)sqlite3_column_text(res, 13)) : NULL;
alarm_config.units = sqlite3_column_bytes(res, 14) > 0 ? strdupz((char *)sqlite3_column_text(res, 14)) : NULL;
alarm_config.green = sqlite3_column_bytes(res, 15) > 0 ? strdupz((char *)sqlite3_column_text(res, 15)) : NULL;
alarm_config.red = sqlite3_column_bytes(res, 16) > 0 ? strdupz((char *)sqlite3_column_text(res, 16)) : NULL;
alarm_config.calculation_expr = sqlite3_column_bytes(res, 17) > 0 ? strdupz((char *)sqlite3_column_text(res, 17)) : NULL;
alarm_config.warning_expr = sqlite3_column_bytes(res, 18) > 0 ? strdupz((char *)sqlite3_column_text(res, 18)) : NULL;
alarm_config.critical_expr = sqlite3_column_bytes(res, 19) > 0 ? strdupz((char *)sqlite3_column_text(res, 19)) : NULL;
alarm_config.recipient = sqlite3_column_bytes(res, 20) > 0 ? strdupz((char *)sqlite3_column_text(res, 20)) : NULL;
alarm_config.exec = sqlite3_column_bytes(res, 21) > 0 ? strdupz((char *)sqlite3_column_text(res, 21)) : NULL;
alarm_config.delay = sqlite3_column_bytes(res, 22) > 0 ? strdupz((char *)sqlite3_column_text(res, 22)) : NULL;
alarm_config.repeat = sqlite3_column_bytes(res, 23) > 0 ? strdupz((char *)sqlite3_column_text(res, 23)) : NULL;
alarm_config.info = sqlite3_column_bytes(res, 24) > 0 ? strdupz((char *)sqlite3_column_text(res, 24)) : NULL;
alarm_config.options = sqlite3_column_bytes(res, 25) > 0 ? strdupz((char *)sqlite3_column_text(res, 25)) : NULL;
alarm_config.host_labels = sqlite3_column_bytes(res, 26) > 0 ? strdupz((char *)sqlite3_column_text(res, 26)) : NULL;
alarm_config.p_db_lookup_dimensions = NULL;
alarm_config.p_db_lookup_method = NULL;
alarm_config.p_db_lookup_options = NULL;
alarm_config.p_db_lookup_after = 0;
alarm_config.p_db_lookup_before = 0;
if (sqlite3_column_bytes(res, 30) > 0) {
alarm_config.p_db_lookup_dimensions = sqlite3_column_bytes(res, 27) > 0 ? strdupz((char *)sqlite3_column_text(res, 27)) : NULL;
alarm_config.p_db_lookup_method = sqlite3_column_bytes(res, 28) > 0 ? strdupz((char *)sqlite3_column_text(res, 28)) : NULL;
BUFFER *tmp_buf = buffer_create(1024);
buffer_data_options2string(tmp_buf, sqlite3_column_int(res, 29));
alarm_config.p_db_lookup_options = strdupz((char *)buffer_tostring(tmp_buf));
buffer_free(tmp_buf);
alarm_config.p_db_lookup_after = sqlite3_column_int(res, 30);
alarm_config.p_db_lookup_before = sqlite3_column_int(res, 31);
}
alarm_config.p_update_every = sqlite3_column_int(res, 32);
p_alarm_config.cfg_hash = strdupz((char *) config_hash);
p_alarm_config.cfg = alarm_config;
}
if (likely(p_alarm_config.cfg_hash)) {
log_access("ACLK RES [%s (%s)]: Sent alert config %s.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", config_hash);
aclk_send_provide_alarm_cfg(&p_alarm_config);
freez((char *) cmd.data_param);
freez(p_alarm_config.cfg_hash);
destroy_aclk_alarm_configuration(&alarm_config);
}
else
log_access("ACLK STA [%s (%s)]: Alert config for %s not found.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", config_hash);
bind_fail:
rc = sqlite3_finalize(res);
if (unlikely(rc != SQLITE_OK))
error_report("Failed to reset statement when pushing alarm config hash, rc = %d", rc);
return rc;
#endif
return 0;
}
// Start streaming alerts
void aclk_start_alert_streaming(char *node_id, uint64_t batch_id, uint64_t start_seq_id)
{
if (unlikely(!node_id))
return;
//log_access("ACLK REQ [%s (N/A)]: ALERTS STREAM from %"PRIu64" batch=%"PRIu64".", node_id, start_seq_id, batch_id);
uuid_t node_uuid;
if (uuid_parse(node_id, node_uuid))
return;
struct aclk_database_worker_config *wc = NULL;
RRDHOST *host = find_host_by_node_id(node_id);
if (likely(host)) {
wc = (struct aclk_database_worker_config *)host->dbsync_worker ?
(struct aclk_database_worker_config *)host->dbsync_worker :
(struct aclk_database_worker_config *)find_inactive_wc_by_node_id(node_id);
if (unlikely(!host->health_enabled)) {
log_access("ACLK STA [%s (N/A)]: Ignoring request to stream alert state changes, health is disabled.", node_id);
return;
}
if (unlikely(batch_id == 1) && unlikely(start_seq_id == 1))
sql_queue_existing_alerts_to_aclk(host);
} else
wc = (struct aclk_database_worker_config *)find_inactive_wc_by_node_id(node_id);
if (likely(wc)) {
log_access("ACLK REQ [%s (%s)]: ALERTS STREAM from %"PRIu64" batch=%"PRIu64, node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", start_seq_id, batch_id);
__sync_synchronize();
wc->alerts_batch_id = batch_id;
wc->alerts_start_seq_id = start_seq_id;
wc->alert_updates = 1;
wc->pause_alert_updates = 0;
__sync_synchronize();
}
else
log_access("ACLK STA [%s (N/A)]: ACLK synchronization thread is not active.", node_id);
return;
}
void sql_process_queue_removed_alerts_to_aclk(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
{
UNUSED(cmd);
BUFFER *sql = buffer_create(1024);
buffer_sprintf(sql,"insert into aclk_alert_%s (alert_unique_id, date_created) " \
"select unique_id alert_unique_id, unixepoch() from health_log_%s " \
"where new_status = -2 and updated_by_id = 0 and unique_id not in " \
"(select alert_unique_id from aclk_alert_%s) order by unique_id asc " \
"on conflict (alert_unique_id) do nothing;", wc->uuid_str, wc->uuid_str, wc->uuid_str);
db_execute(buffer_tostring(sql));
log_access("ACLK STA [%s (%s)]: QUEUED REMOVED ALERTS", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A");
buffer_free(sql);
wc->pause_alert_updates = 0;
return;
}
void sql_queue_removed_alerts_to_aclk(RRDHOST *host)
{
if (unlikely(!host->dbsync_worker))
return;
if (!claimed())
return;
struct aclk_database_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = ACLK_DATABASE_QUEUE_REMOVED_ALERTS;
cmd.data = NULL;
cmd.data_param = NULL;
cmd.completion = NULL;
aclk_database_enq_cmd((struct aclk_database_worker_config *) host->dbsync_worker, &cmd);
}
void aclk_process_send_alarm_snapshot(char *node_id, char *claim_id, uint64_t snapshot_id, uint64_t sequence_id)
{
UNUSED(claim_id);
if (unlikely(!node_id))
return;
uuid_t node_uuid;
if (uuid_parse(node_id, node_uuid))
return;
struct aclk_database_worker_config *wc = NULL;
RRDHOST *host = find_host_by_node_id(node_id);
if (likely(host))
wc = (struct aclk_database_worker_config *)host->dbsync_worker;
if (likely(wc)) {
log_access(
"IN [%s (%s)]: Request to send alerts snapshot, snapshot_id %" PRIu64 " and ack_sequence_id %" PRIu64,
wc->node_id,
wc->host ? rrdhost_hostname(wc->host) : "N/A",
snapshot_id,
sequence_id);
if (wc->alerts_snapshot_id == snapshot_id)
return;
__sync_synchronize();
wc->alerts_snapshot_id = snapshot_id;
wc->alerts_ack_sequence_id = sequence_id;
__sync_synchronize();
struct aclk_database_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = ACLK_DATABASE_PUSH_ALERT_SNAPSHOT;
cmd.data_param = NULL;
cmd.completion = NULL;
aclk_database_enq_cmd(wc, &cmd);
} else
log_access("ACLK STA [%s (N/A)]: ACLK synchronization thread is not active.", node_id);
return;
}
void aclk_mark_alert_cloud_ack(char *uuid_str, uint64_t alerts_ack_sequence_id)
{
BUFFER *sql = buffer_create(1024);
if (alerts_ack_sequence_id != 0) {
buffer_sprintf(
sql,
"UPDATE aclk_alert_%s SET date_cloud_ack = unixepoch() WHERE sequence_id <= %" PRIu64 "",
uuid_str,
alerts_ack_sequence_id);
db_execute(buffer_tostring(sql));
}
buffer_free(sql);
}
#ifdef ENABLE_ACLK
void health_alarm_entry2proto_nolock(struct alarm_log_entry *alarm_log, ALARM_ENTRY *ae, RRDHOST *host)
{
char *edit_command = ae->source ? health_edit_command_from_source(ae_source(ae)) : strdupz("UNKNOWN=0=UNKNOWN");
char config_hash_id[GUID_LEN + 1];
uuid_unparse_lower(ae->config_hash_id, config_hash_id);
alarm_log->chart = strdupz(ae_chart_name(ae));
alarm_log->name = strdupz(ae_name(ae));
alarm_log->family = strdupz(ae_family(ae));
alarm_log->batch_id = 0;
alarm_log->sequence_id = 0;
alarm_log->when = (time_t)ae->when;
alarm_log->config_hash = strdupz((char *)config_hash_id);
alarm_log->utc_offset = host->utc_offset;
alarm_log->timezone = strdupz(rrdhost_abbrev_timezone(host));
alarm_log->exec_path = ae->exec ? strdupz(ae_exec(ae)) : strdupz((char *)string2str(host->health_default_exec));
alarm_log->conf_source = ae->source ? strdupz(ae_source(ae)) : strdupz((char *)"");
alarm_log->command = strdupz((char *)edit_command);
alarm_log->duration = (time_t)ae->duration;
alarm_log->non_clear_duration = (time_t)ae->non_clear_duration;
alarm_log->status = rrdcalc_status_to_proto_enum((RRDCALC_STATUS)ae->new_status);
alarm_log->old_status = rrdcalc_status_to_proto_enum((RRDCALC_STATUS)ae->old_status);
alarm_log->delay = (int)ae->delay;
alarm_log->delay_up_to_timestamp = (time_t)ae->delay_up_to_timestamp;
alarm_log->last_repeat = (time_t)ae->last_repeat;
alarm_log->silenced =
((ae->flags & HEALTH_ENTRY_FLAG_SILENCED) || (ae->recipient && !strncmp(ae_recipient(ae), "silent", 6))) ?
1 :
0;
alarm_log->value_string = strdupz(ae_new_value_string(ae));
alarm_log->old_value_string = strdupz(ae_old_value_string(ae));
alarm_log->value = (!isnan(ae->new_value)) ? (NETDATA_DOUBLE)ae->new_value : 0;
alarm_log->old_value = (!isnan(ae->old_value)) ? (NETDATA_DOUBLE)ae->old_value : 0;
alarm_log->updated = (ae->flags & HEALTH_ENTRY_FLAG_UPDATED) ? 1 : 0;
alarm_log->rendered_info = strdupz(ae_info(ae));
alarm_log->chart_context = strdupz(ae_chart_context(ae));
freez(edit_command);
}
#endif
#ifdef ENABLE_ACLK
static int have_recent_alarm(RRDHOST *host, uint32_t alarm_id, time_t mark)
{
ALARM_ENTRY *ae = host->health_log.alarms;
while (ae) {
if (ae->alarm_id == alarm_id && ae->unique_id > mark &&
(ae->new_status != RRDCALC_STATUS_WARNING && ae->new_status != RRDCALC_STATUS_CRITICAL))
return 1;
ae = ae->next;
}
return 0;
}
#endif
#define ALARM_EVENTS_PER_CHUNK 10
void aclk_push_alert_snapshot_event(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
{
#ifndef ENABLE_ACLK
UNUSED(wc);
UNUSED(cmd);
#else
UNUSED(cmd);
// we perhaps we don't need this for snapshots
if (unlikely(!wc->alert_updates)) {
log_access("ACLK STA [%s (%s)]: Ignoring alert snapshot event, updates have been turned off for this node.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A");
return;
}
if (unlikely(!wc->host)) {
error_report("ACLK synchronization thread for %s is not linked to HOST", wc->host_guid);
return;
}
if (unlikely(!wc->alerts_snapshot_id))
return;
char *claim_id = get_agent_claimid();
if (unlikely(!claim_id))
return;
log_access("ACLK REQ [%s (%s)]: Sending alerts snapshot, snapshot_id %" PRIu64, wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", wc->alerts_snapshot_id);
aclk_mark_alert_cloud_ack(wc->uuid_str, wc->alerts_ack_sequence_id);
RRDHOST *host = wc->host;
uint32_t cnt = 0;
netdata_rwlock_rdlock(&host->health_log.alarm_log_rwlock);
ALARM_ENTRY *ae = host->health_log.alarms;
for (; ae; ae = ae->next) {
if (likely(ae->updated_by_id))
continue;
if (unlikely(ae->new_status == RRDCALC_STATUS_UNINITIALIZED))
continue;
if (have_recent_alarm(host, ae->alarm_id, ae->unique_id))
continue;
cnt++;
}
if (cnt) {
uint32_t chunk = 1, chunks = 0;
chunks = (cnt / ALARM_EVENTS_PER_CHUNK) + (cnt % ALARM_EVENTS_PER_CHUNK != 0);
ae = host->health_log.alarms;
cnt = 0;
struct alarm_snapshot alarm_snap;
alarm_snap.node_id = wc->node_id;
alarm_snap.claim_id = claim_id;
alarm_snap.snapshot_id = wc->alerts_snapshot_id;
alarm_snap.chunks = chunks;
alarm_snap.chunk = chunk;
alarm_snapshot_proto_ptr_t snapshot_proto = NULL;
for (; ae; ae = ae->next) {
if (likely(ae->updated_by_id))
continue;
if (unlikely(ae->new_status == RRDCALC_STATUS_UNINITIALIZED))
continue;
if (have_recent_alarm(host, ae->alarm_id, ae->unique_id))
continue;
cnt++;
struct alarm_log_entry alarm_log;
alarm_log.node_id = wc->node_id;
alarm_log.claim_id = claim_id;
if (!snapshot_proto)
snapshot_proto = generate_alarm_snapshot_proto(&alarm_snap);
health_alarm_entry2proto_nolock(&alarm_log, ae, host);
add_alarm_log_entry2snapshot(snapshot_proto, &alarm_log);
if (cnt == ALARM_EVENTS_PER_CHUNK) {
aclk_send_alarm_snapshot(snapshot_proto);
cnt = 0;
if (chunk < chunks) {
chunk++;
struct alarm_snapshot alarm_snap;
alarm_snap.node_id = wc->node_id;
alarm_snap.claim_id = claim_id;
alarm_snap.snapshot_id = wc->alerts_snapshot_id;
alarm_snap.chunks = chunks;
alarm_snap.chunk = chunk;
snapshot_proto = generate_alarm_snapshot_proto(&alarm_snap);
}
}
destroy_alarm_log_entry(&alarm_log);
}
if (cnt)
aclk_send_alarm_snapshot(snapshot_proto);
}
netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock);
wc->alerts_snapshot_id = 0;
freez(claim_id);
#endif
return;
}
void sql_aclk_alert_clean_dead_entries(RRDHOST *host)
{
if (!claimed())
return;
char uuid_str[GUID_LEN + 1];
uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
BUFFER *sql = buffer_create(1024);
buffer_sprintf(sql,"delete from aclk_alert_%s where alert_unique_id not in "
" (select unique_id from health_log_%s); ", uuid_str, uuid_str);
char *err_msg = NULL;
int rc = sqlite3_exec_monitored(db_meta, buffer_tostring(sql), NULL, NULL, &err_msg);
if (rc != SQLITE_OK) {
error_report("Failed when trying to clean stale ACLK alert entries from aclk_alert_%s, error message \"%s""",
uuid_str, err_msg);
sqlite3_free(err_msg);
}
buffer_free(sql);
}
int get_proto_alert_status(RRDHOST *host, struct proto_alert_status *proto_alert_status)
{
int rc;
struct aclk_database_worker_config *wc = NULL;
wc = (struct aclk_database_worker_config *)host->dbsync_worker;
if (!wc)
return 1;
proto_alert_status->alert_updates = wc->alert_updates;
proto_alert_status->alerts_batch_id = wc->alerts_batch_id;
BUFFER *sql = buffer_create(1024);
sqlite3_stmt *res = NULL;
buffer_sprintf(sql, "SELECT MIN(sequence_id), MAX(sequence_id), " \
"(select MAX(sequence_id) from aclk_alert_%s where date_cloud_ack is not NULL), " \
"(select MAX(sequence_id) from aclk_alert_%s where date_submitted is not NULL) " \
"FROM aclk_alert_%s where date_submitted is null;", wc->uuid_str, wc->uuid_str, wc->uuid_str);
rc = sqlite3_prepare_v2(db_meta, buffer_tostring(sql), -1, &res, 0);
if (rc != SQLITE_OK) {
error_report("Failed to prepare statement to get alert log status from the database.");
buffer_free(sql);
return 1;
}
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
proto_alert_status->pending_min_sequence_id = sqlite3_column_bytes(res, 0) > 0 ? (uint64_t) sqlite3_column_int64(res, 0) : 0;
proto_alert_status->pending_max_sequence_id = sqlite3_column_bytes(res, 1) > 0 ? (uint64_t) sqlite3_column_int64(res, 1) : 0;
proto_alert_status->last_acked_sequence_id = sqlite3_column_bytes(res, 2) > 0 ? (uint64_t) sqlite3_column_int64(res, 2) : 0;
proto_alert_status->last_submitted_sequence_id = sqlite3_column_bytes(res, 3) > 0 ? (uint64_t) sqlite3_column_int64(res, 3) : 0;
}
rc = sqlite3_finalize(res);
if (unlikely(rc != SQLITE_OK))
error_report("Failed to finalize statement to get alert log status from the database, rc = %d", rc);
buffer_free(sql);
return 0;
}
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