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Memcached stats command

Memcached stats command returns statistical information such as PID (process ID), the version number, the number of connections and the like.

grammar:

The basic stats command syntax is as follows: 

stats

Examples

In the following example, we use the stats command output Memcached service information. 

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

This shows a lot of status information, detailed explanations of each status item below:

  • pid: memcache server process ID
  • uptime: server is running Seconds
  • time: Current server Unix timestamp
  • version: memcache version
  • pointer_size: operating system pointer size
  • rusage_user: Process cumulative user time
  • rusage_system: cumulative process system time
  • curr_connections: The current number of connections
  • total_connections: Since the total number of connections running Memcached
  • connection_structures: The number of connections Memcached distribution structure
  • cmd_get: get command number of requests
  • cmd_set: set number command request
  • cmd_flush: flush command request number
  • get_hits: get command of hits
  • get_misses: get command misses
  • delete_misses: delete command misses
  • delete_hits: delete command of hits
  • incr_misses: incr command misses
  • incr_hits: incr command of hits
  • decr_misses: decr command misses
  • decr_hits: decr command of hits
  • cas_misses: cas command misses
  • cas_hits: cas command of hits
  • cas_badval: Use wipe times
  • auth_cmds: authentication command processing times
  • auth_errors: the number of failed authentication
  • bytes_read: total number of bytes read
  • bytes_written: total number of bytes sent
  • limit_maxbytes: The total size of allocated memory (in bytes)
  • accepting_conns: server reached the maximum connections (0/1)
  • listen_disabled_num: Number of monitor failure
  • threads: Current number of threads
  • conn_yields: give up the number of join operations
  • bytes: Number of bytes of memory currently occupied
  • curr_items: The current total number of data storage
  • Since the start of the total number of datastorage: total_items
  • evictions: the number of objects LRU release
  • The number of expired data entry to store newdata: reclaimed