i'm getting the error in Memcached every now and then.
SERVER_ERROR out of memory storing object
i still have plenty of memory available on my system (5GB). My Monitoring Plugin (Nagios) tells me that i'm currently using 69% of the available memory for Memcached (-m 1024)
Those are the stats:
STAT pid 26944
STAT uptime 2127214
STAT time 1369169586
STAT version 1.4.13
STAT libevent 2.0.16-stable
STAT pointer_size 64
STAT rusage_user 59272.524301
STAT rusage_system 65565.313576
STAT curr_connections 8
STAT total_connections 51640235
STAT connection_structures 1001
STAT reserved_fds 20
STAT cmd_get 4558313652
STAT cmd_set 3486996973
STAT cmd_flush 0
STAT cmd_touch 0
STAT get_hits 3399062933
STAT get_misses 1159250719
STAT delete_misses 5140552
STAT delete_hits 1062598
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 1221665161161
STAT bytes_written 372602026218
STAT limit_maxbytes 1073741824
STAT accepting_conns 1
STAT listen_disabled_num 418
STAT threads 4
STAT conn_yields 32569435
STAT hash_power_level 21
STAT hash_bytes 16777216
STAT hash_is_expanding 0
STAT expired_unfetched 195561
STAT evicted_unfetched 0
STAT bytes 745210506
STAT curr_items 3105071
STAT total_items 3486996973
STAT evictions 0
STAT reclaimed 263780
END
I'm experiencing this storing values using spymemcached - but i believe it has nothing to do with it.
Furthermore, i believe that this could be fixed, if i restart the memcached server.
This is not a bug described here which appears in versions <= 1.4.10 - I'm using 1.4.13 on Ubuntu 64bit precise.
Just found out, that i'm using the -M option which the manual describes as:
Disable automatic removal of items from the cache when out of memory. Additions will not be possible until adequate space is freed up.
So, i guess the memory of the memcached server is indeed full - but it doesn't use 100% of the space according to the stats - How come?
What do?