[MediaWiki-l] verify sessions stored in memcached

Frank Baxmann service at frankbaxmann.de
Sat Oct 3 21:42:28 UTC 2015


Hi Tim,

you just see the config of memcached.
To see more you need admin tools, I use "phpMemcachedAdmin" for this.
But with these tools you just see the detail status and config of memcached,
the hitrates and the Slab details.

If you know the size of the session data, you can look into the
slab details and see the data there.

Greetings
Frank

On 03.10.2015 22:56, Tim Dunphy wrote:
> Hey guys,
>
> Using the stats command to the memcached telnet interface, what am I
> looking for in the outuput to verify that sessions are indeed being stored
> in memcached?
>
> Here's what I see in the output of that command:
>
> Connected to localhost.
> Escape character is '^]'.
> stats
> STAT pid 15660
> STAT uptime 520834
> STAT time 1443903604
> STAT version 1.4.22
> STAT libevent 2.0.21-stable
> STAT pointer_size 64
> STAT rusage_user 24.649971
> STAT rusage_system 25.674705
> STAT curr_connections 11
> STAT total_connections 2036
> STAT connection_structures 14
> STAT reserved_fds 20
> STAT cmd_get 60483
> STAT cmd_set 53862
> STAT cmd_flush 0
> STAT cmd_touch 0
> STAT get_hits 57239
> STAT get_misses 3244
> STAT delete_misses 13
> STAT delete_hits 875
> STAT incr_misses 0
> STAT incr_hits 0
> STAT decr_misses 0
> STAT decr_hits 0
> 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 13866189
> STAT bytes_written 27434116
> 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 malloc_fails 0
> STAT bytes 1412767
> STAT curr_items 1173
> STAT total_items 53854
> STAT expired_unfetched 12
> STAT evicted_unfetched 0
> STAT evictions 0
> STAT reclaimed 20
> STAT crawler_reclaimed 0
> STAT lrutail_reflocked 0
> END
>
> What other stats are interesting to look at in relation to mediawiki and
> why?
>
> Thanks,
>
> Tim
>




More information about the MediaWiki-l mailing list