hi Dormando, we use version 1.4.15. So it would be first step to update. Thank you!
>Does your memory usage continue to go up while the number of connections is stable, or do >the number of connections slowly increase with memory usage? I am doing history query now. But to be sure, do you mean "curr_connections" to compare or "connection_structures" or "total_connections" (this one has HUGE value, see below) here is the stats from one of the servers: stats STAT pid 10409 STAT uptime 322887 STAT time 1388427859 STAT version 1.4.15 STAT libevent 1.4.13-stable STAT pointer_size 64 STAT rusage_user 230345.511159 STAT rusage_system 354573.674608 STAT curr_connections 4151 STAT total_connections 1251550661 STAT connection_structures 6655 STAT reserved_fds 40 STAT cmd_get 26733462674 STAT cmd_set 291587557 STAT cmd_flush 0 STAT cmd_touch 0 STAT get_hits 26157644553 STAT get_misses 575818121 STAT delete_misses 6433865116 STAT delete_hits 91028651 STAT incr_misses 0 STAT incr_hits 0 STAT decr_misses 0 STAT decr_hits 0 STAT cas_misses 0 STAT cas_hits 28992 STAT cas_badval 22 STAT touch_hits 0 STAT touch_misses 0 STAT auth_cmds 0 STAT auth_errors 0 STAT bytes_read 7326099432348 STAT bytes_written 31415635467012 STAT limit_maxbytes 25769803776 STAT accepting_conns 1 STAT listen_disabled_num 0 STAT threads 8 STAT conn_yields 0 STAT hash_power_level 25 STAT hash_bytes 268435456 STAT hash_is_expanding 0 STAT slab_reassign_running 0 STAT slabs_moved 0 STAT bytes 22814358539 STAT curr_items 34689744 STAT total_items 291584654 STAT expired_unfetched 27821 STAT evicted_unfetched 91912345 STAT evictions 135352494 STAT reclaimed 34495 -Den On Friday, December 27, 2013 5:14:16 PM UTC-8, Dormando wrote: > > > Hi everybody,What would be best practice to set max connections? We have > "memory leak" issue (memory usage grows, eats all available memory, > > process crashes). I use quotes as I am not sure that this is actually > memory leak. I still thinking on the way to validate this. One potential > > suspect is memory used for network connections. We have -c 128000. And > -m 24576 as memory limiter. the box itself has 48G of memory and dedicated > > to memcache. > > > > Also, more abstract question: is there any way to see how memcache uses > memory? like what amount was reserved for connections? > > > > Thank you and Happy Holidays, > > Den > > Hi! > > What version are you running? If it's not 1.4.17, can you try that version > and see if it still "leaks"? There was at least one bug fix in the last > two versions which could drop a connection structure. > > The "stats" output can tell you how much memory is dictated for the slab > cache and for the hash table, but not all types of memory are accounted > presently. > > That is a very large number of connections though. Can you provide some > 'stats' output? How many connections do you usually have? Does your memory > usage continue to go up while the number of connections is stable, or do > the number of connections slowly increase with memory usage? > -- --- You received this message because you are subscribed to the Google Groups "memcached" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
