Memcached stats 命令用于返回統(tǒng)計(jì)信息例如 PID(進(jìn)程號(hào))、版本號(hào)、連接數(shù)等。
語法:
stats 命令的基本語法格式如下:
stats
實(shí)例
在以下實(shí)例中,我們使用了 stats 命令來輸出 Memcached 服務(wù)信息。
stats
STAT pid 1162
STAT uptime 5022
STAT time 1415208270
STAT version 1.4.14
STAT libevent 2.0.19-stable
STAT pointer_size 64
STAT rusage_user 0.096006
STAT rusage_system 0.152009
STAT curr_connections 5
STAT total_connections 6
STAT connection_structures 6
STAT reserved_fds 20
STAT cmd_get 6
STAT cmd_set 4
STAT cmd_flush 0
STAT cmd_touch 0
STAT get_hits 4
STAT get_misses 2
STAT delete_misses 1
STAT delete_hits 1
STAT incr_misses 2
STAT incr_hits 1
STAT decr_misses 0
STAT decr_hits 1
STAT cas_misses 0
STAT cas_hits 0
STAT cas_badval 0
STAT touch_hits 0
STAT touch_misses 0
STAT auth_cmds 0
STAT auth_errors 0
STAT bytes_read 262
STAT bytes_written 313
STAT limit_maxbytes 67108864
STAT accepting_conns 1
STAT listen_disabled_num 0
STAT threads 4
STAT conn_yields 0
STAT hash_power_level 16
STAT hash_bytes 524288
STAT hash_is_expanding 0
STAT expired_unfetched 1
STAT evicted_unfetched 0
STAT bytes 142
STAT curr_items 2
STAT total_items 6
STAT evictions 0
STAT reclaimed 1
END
這里顯示了很多狀態(tài)信息,下邊詳細(xì)解釋每個(gè)狀態(tài)項(xiàng):
- pid: memcache服務(wù)器進(jìn)程ID
- uptime:服務(wù)器已運(yùn)行秒數(shù)
- time:服務(wù)器當(dāng)前Unix時(shí)間戳
- version:memcache版本
- pointer_size:操作系統(tǒng)指針大小
- rusage_user:進(jìn)程累計(jì)用戶時(shí)間
- rusage_system:進(jìn)程累計(jì)系統(tǒng)時(shí)間
- curr_connections:當(dāng)前連接數(shù)量
- total_connections:Memcached運(yùn)行以來連接總數(shù)
- connection_structures:Memcached分配的連接結(jié)構(gòu)數(shù)量
- cmd_get:get命令請(qǐng)求次數(shù)
- cmd_set:set命令請(qǐng)求次數(shù)
- cmd_flush:flush命令請(qǐng)求次數(shù)
- get_hits:get命令命中次數(shù)
- get_misses:get命令未命中次數(shù)
- delete_misses:delete命令未命中次數(shù)
- delete_hits:delete命令命中次數(shù)
- incr_misses:incr命令未命中次數(shù)
- incr_hits:incr命令命中次數(shù)
- decr_misses:decr命令未命中次數(shù)
- decr_hits:decr命令命中次數(shù)
- cas_misses:cas命令未命中次數(shù)
- cas_hits:cas命令命中次數(shù)
- cas_badval:使用擦拭次數(shù)
- auth_cmds:認(rèn)證命令處理的次數(shù)
- auth_errors:認(rèn)證失敗數(shù)目
- bytes_read:讀取總字節(jié)數(shù)
- bytes_written:發(fā)送總字節(jié)數(shù)
- limit_maxbytes:分配的內(nèi)存總大?。ㄗ止?jié))
- accepting_conns:服務(wù)器是否達(dá)到過最大連接(0/1)
- listen_disabled_num:失效的監(jiān)聽數(shù)
- threads:當(dāng)前線程數(shù)
- conn_yields:連接操作主動(dòng)放棄數(shù)目
- bytes:當(dāng)前存儲(chǔ)占用的字節(jié)數(shù)
- curr_items:當(dāng)前存儲(chǔ)的數(shù)據(jù)總數(shù)
- total_items:啟動(dòng)以來存儲(chǔ)的數(shù)據(jù)總數(shù)
- evictions:LRU釋放的對(duì)象數(shù)目
- reclaimed:已過期的數(shù)據(jù)條目來存儲(chǔ)新數(shù)據(jù)的數(shù)目
更多建議: