415 lines
14 KiB
Tcl
415 lines
14 KiB
Tcl
tags {"rdb external:skip"} {
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set server_path [tmpdir "server.rdb-encoding-test"]
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# Copy RDB with different encodings in server path
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exec cp tests/assets/encodings.rdb $server_path
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exec cp tests/assets/list-quicklist.rdb $server_path
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start_server [list overrides [list "dir" $server_path "dbfilename" "list-quicklist.rdb"]] {
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test "test old version rdb file" {
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r select 0
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assert_equal [r get x] 7
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r lpop list
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} {7}
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}
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start_server [list overrides [list "dir" $server_path "dbfilename" "encodings.rdb"]] {
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test "RDB encoding loading test" {
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r select 0
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csvdump r
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} {"0","compressible","string","aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
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"0","hash","hash","a","1","aa","10","aaa","100","b","2","bb","20","bbb","200","c","3","cc","30","ccc","300","ddd","400","eee","5000000000",
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"0","hash_zipped","hash","a","1","b","2","c","3",
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"0","list","list","1","2","3","a","b","c","100000","6000000000","1","2","3","a","b","c","100000","6000000000","1","2","3","a","b","c","100000","6000000000",
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"0","list_zipped","list","1","2","3","a","b","c","100000","6000000000",
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"0","number","string","10"
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"0","set","set","1","100000","2","3","6000000000","a","b","c",
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"0","set_zipped_1","set","1","2","3","4",
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"0","set_zipped_2","set","100000","200000","300000","400000",
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"0","set_zipped_3","set","1000000000","2000000000","3000000000","4000000000","5000000000","6000000000",
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"0","string","string","Hello World"
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"0","zset","zset","a","1","b","2","c","3","aa","10","bb","20","cc","30","aaa","100","bbb","200","ccc","300","aaaa","1000","cccc","123456789","bbbb","5e+9",
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"0","zset_zipped","zset","a","1","b","2","c","3",
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}
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}
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set server_path [tmpdir "server.rdb-startup-test"]
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start_server [list overrides [list "dir" $server_path] keep_persistence true] {
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test {Server started empty with non-existing RDB file} {
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debug_digest
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} {0000000000000000000000000000000000000000}
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# Save an RDB file, needed for the next test.
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r save
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}
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start_server [list overrides [list "dir" $server_path] keep_persistence true] {
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test {Server started empty with empty RDB file} {
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debug_digest
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} {0000000000000000000000000000000000000000}
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}
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start_server [list overrides [list "dir" $server_path] keep_persistence true] {
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test {Test RDB stream encoding} {
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for {set j 0} {$j < 1000} {incr j} {
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if {rand() < 0.9} {
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r xadd stream * foo abc
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} else {
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r xadd stream * bar $j
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}
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}
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r xgroup create stream mygroup 0
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set records [r xreadgroup GROUP mygroup Alice COUNT 2 STREAMS stream >]
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r xdel stream [lindex [lindex [lindex [lindex $records 0] 1] 1] 0]
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r xack stream mygroup [lindex [lindex [lindex [lindex $records 0] 1] 0] 0]
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set digest [debug_digest]
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r config set sanitize-dump-payload no
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r debug reload
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set newdigest [debug_digest]
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assert {$digest eq $newdigest}
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}
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test {Test RDB stream encoding - sanitize dump} {
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r config set sanitize-dump-payload yes
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r debug reload
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set newdigest [debug_digest]
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assert {$digest eq $newdigest}
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}
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# delete the stream, maybe valgrind will find something
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r del stream
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}
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# Helper function to start a server and kill it, just to check the error
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# logged.
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set defaults {}
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proc start_server_and_kill_it {overrides code} {
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upvar defaults defaults srv srv server_path server_path
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set config [concat $defaults $overrides]
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set srv [start_server [list overrides $config keep_persistence true]]
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uplevel 1 $code
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kill_server $srv
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}
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# Make the RDB file unreadable
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file attributes [file join $server_path dump.rdb] -permissions 0222
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# Detect root account (it is able to read the file even with 002 perm)
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set isroot 0
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catch {
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open [file join $server_path dump.rdb]
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set isroot 1
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}
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# Now make sure the server aborted with an error
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if {!$isroot} {
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start_server_and_kill_it [list "dir" $server_path] {
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test {Server should not start if RDB file can't be open} {
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wait_for_condition 50 100 {
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[string match {*Fatal error loading*} \
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[exec tail -1 < [dict get $srv stdout]]]
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} else {
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fail "Server started even if RDB was unreadable!"
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}
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}
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}
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}
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# Fix permissions of the RDB file.
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file attributes [file join $server_path dump.rdb] -permissions 0666
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# Corrupt its CRC64 checksum.
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set filesize [file size [file join $server_path dump.rdb]]
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set fd [open [file join $server_path dump.rdb] r+]
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fconfigure $fd -translation binary
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seek $fd -8 end
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puts -nonewline $fd "foobar00"; # Corrupt the checksum
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close $fd
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# Now make sure the server aborted with an error
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start_server_and_kill_it [list "dir" $server_path] {
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test {Server should not start if RDB is corrupted} {
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wait_for_condition 50 100 {
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[string match {*CRC error*} \
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[exec tail -10 < [dict get $srv stdout]]]
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} else {
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fail "Server started even if RDB was corrupted!"
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}
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}
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}
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start_server {} {
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test {Test FLUSHALL aborts bgsave} {
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r config set save ""
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# 5000 keys with 1ms sleep per key should take 5 second
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r config set rdb-key-save-delay 1000
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populate 5000
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assert_lessthan 999 [s rdb_changes_since_last_save]
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r bgsave
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assert_equal [s rdb_bgsave_in_progress] 1
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r flushall
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# wait a second max (bgsave should take 5)
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wait_for_condition 10 100 {
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[s rdb_bgsave_in_progress] == 0
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} else {
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fail "bgsave not aborted"
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}
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# verify that bgsave failed, by checking that the change counter is still high
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assert_lessthan 999 [s rdb_changes_since_last_save]
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# make sure the server is still writable
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r set x xx
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}
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test {bgsave resets the change counter} {
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r config set rdb-key-save-delay 0
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r bgsave
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wait_for_condition 50 100 {
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[s rdb_bgsave_in_progress] == 0
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} else {
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fail "bgsave not done"
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}
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assert_equal [s rdb_changes_since_last_save] 0
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}
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}
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test {client freed during loading} {
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start_server [list overrides [list key-load-delay 50 loading-process-events-interval-bytes 1024 rdbcompression no]] {
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# create a big rdb that will take long to load. it is important
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# for keys to be big since the server processes events only once in 2mb.
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# 100mb of rdb, 100k keys will load in more than 5 seconds
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r debug populate 100000 key 1000
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restart_server 0 false false
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# make sure it's still loading
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assert_equal [s loading] 1
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# connect and disconnect 5 clients
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set clients {}
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for {set j 0} {$j < 5} {incr j} {
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lappend clients [redis_deferring_client]
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}
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foreach rd $clients {
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$rd debug log bla
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}
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foreach rd $clients {
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$rd read
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}
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foreach rd $clients {
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$rd close
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}
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# make sure the server freed the clients
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wait_for_condition 100 100 {
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[s connected_clients] < 3
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} else {
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fail "clients didn't disconnect"
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}
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# make sure it's still loading
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assert_equal [s loading] 1
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# no need to keep waiting for loading to complete
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exec kill [srv 0 pid]
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}
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}
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start_server {} {
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test {Test RDB load info} {
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r debug populate 1000
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r save
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restart_server 0 true false
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wait_done_loading r
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assert {[s rdb_last_load_keys_expired] == 0}
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assert {[s rdb_last_load_keys_loaded] == 1000}
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r debug set-active-expire 0
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for {set j 0} {$j < 1024} {incr j} {
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r select [expr $j%16]
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r set $j somevalue px 10
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}
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after 20
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r save
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restart_server 0 true false
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wait_done_loading r
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assert {[s rdb_last_load_keys_expired] == 1024}
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assert {[s rdb_last_load_keys_loaded] == 1000}
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}
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}
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# Our COW metrics (Private_Dirty) work only on Linux
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set system_name [string tolower [exec uname -s]]
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set page_size [exec getconf PAGESIZE]
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if {$system_name eq {linux} && $page_size == 4096} {
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start_server {overrides {save ""}} {
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test {Test child sending info} {
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# make sure that rdb_last_cow_size and current_cow_size are zero (the test using new server),
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# so that the comparisons during the test will be valid
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assert {[s current_cow_size] == 0}
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assert {[s current_save_keys_processed] == 0}
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assert {[s current_save_keys_total] == 0}
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assert {[s rdb_last_cow_size] == 0}
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# using a 200us delay, the bgsave is empirically taking about 10 seconds.
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# we need it to take more than some 5 seconds, since redis only report COW once a second.
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r config set rdb-key-save-delay 200
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r config set loglevel debug
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# populate the db with 10k keys of 512B each (since we want to measure the COW size by
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# changing some keys and read the reported COW size, we are using small key size to prevent from
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# the "dismiss mechanism" free memory and reduce the COW size)
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set rd [redis_deferring_client 0]
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set size 500 ;# aim for the 512 bin (sds overhead)
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set cmd_count 10000
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for {set k 0} {$k < $cmd_count} {incr k} {
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$rd set key$k [string repeat A $size]
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}
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for {set k 0} {$k < $cmd_count} {incr k} {
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catch { $rd read }
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}
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$rd close
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# start background rdb save
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r bgsave
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set current_save_keys_total [s current_save_keys_total]
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if {$::verbose} {
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puts "Keys before bgsave start: $current_save_keys_total"
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}
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# on each iteration, we will write some key to the server to trigger copy-on-write, and
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# wait to see that it reflected in INFO.
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set iteration 1
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set key_idx 0
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while 1 {
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# take samples before writing new data to the server
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set cow_size [s current_cow_size]
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if {$::verbose} {
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puts "COW info before copy-on-write: $cow_size"
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}
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set keys_processed [s current_save_keys_processed]
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if {$::verbose} {
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puts "current_save_keys_processed info : $keys_processed"
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}
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# trigger copy-on-write
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set modified_keys 16
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for {set k 0} {$k < $modified_keys} {incr k} {
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r setrange key$key_idx 0 [string repeat B $size]
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incr key_idx 1
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}
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# changing 16 keys (512B each) will create at least 8192 COW (2 pages), but we don't want the test
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# to be too strict, so we check for a change of at least 4096 bytes
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set exp_cow [expr $cow_size + 4096]
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# wait to see that current_cow_size value updated (as long as the child is in progress)
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wait_for_condition 80 100 {
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[s rdb_bgsave_in_progress] == 0 ||
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[s current_cow_size] >= $exp_cow &&
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[s current_save_keys_processed] > $keys_processed &&
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[s current_fork_perc] > 0
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} else {
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if {$::verbose} {
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puts "COW info on fail: [s current_cow_size]"
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puts [exec tail -n 100 < [srv 0 stdout]]
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}
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fail "COW info wasn't reported"
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}
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# assert that $keys_processed is not greater than total keys.
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assert_morethan_equal $current_save_keys_total $keys_processed
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# for no accurate, stop after 2 iterations
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if {!$::accurate && $iteration == 2} {
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break
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}
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# stop iterating if the bgsave completed
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if { [s rdb_bgsave_in_progress] == 0 } {
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break
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}
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incr iteration 1
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}
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# make sure we saw report of current_cow_size
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if {$iteration < 2 && $::verbose} {
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puts [exec tail -n 100 < [srv 0 stdout]]
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}
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assert_morethan_equal $iteration 2
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# if bgsave completed, check that rdb_last_cow_size (fork exit report)
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# is at least 90% of last rdb_active_cow_size.
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if { [s rdb_bgsave_in_progress] == 0 } {
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set final_cow [s rdb_last_cow_size]
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set cow_size [expr $cow_size * 0.9]
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if {$final_cow < $cow_size && $::verbose} {
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puts [exec tail -n 100 < [srv 0 stdout]]
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}
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assert_morethan_equal $final_cow $cow_size
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}
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}
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}
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} ;# system_name
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exec cp -f tests/assets/scriptbackup.rdb $server_path
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start_server [list overrides [list "dir" $server_path "dbfilename" "scriptbackup.rdb" "appendonly" "no"]] {
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# the script is: "return redis.call('set', 'foo', 'bar')""
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# its sha1 is: a0c38691e9fffe4563723c32ba77a34398e090e6
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test {script won't load anymore if it's in rdb} {
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assert_equal [r script exists a0c38691e9fffe4563723c32ba77a34398e090e6] 0
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}
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}
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start_server {} {
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test "failed bgsave prevents writes" {
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r config set rdb-key-save-delay 10000000
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populate 1000
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r set x x
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r bgsave
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set pid1 [get_child_pid 0]
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catch {exec kill -9 $pid1}
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waitForBgsave r
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# make sure a read command succeeds
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assert_equal [r get x] x
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# make sure a write command fails
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assert_error {MISCONF *} {r set x y}
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# repeate with script
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assert_error {MISCONF *} {r eval {
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return redis.call('set','x',1)
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} 1 x
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}
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assert_equal {x} [r eval {
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return redis.call('get','x')
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} 1 x
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]
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# again with script using shebang
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assert_error {MISCONF *} {r eval {#!lua
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return redis.call('set','x',1)
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} 1 x
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}
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assert_equal {x} [r eval {#!lua flags=no-writes
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return redis.call('get','x')
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} 1 x
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]
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r config set rdb-key-save-delay 0
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r bgsave
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waitForBgsave r
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# server is writable again
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r set x y
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} {OK}
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}
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} ;# tags
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