[asterisk-users] How to read/set ulimit for non-root asterisk process ?

[Olivier]

2013/2/15 Olivier <oza_4h07 at yahoo.fr>

> Hello,
>
> On a production system, I'm seeing this:
> [Feb 13 16:47:00] WARNING[14742] res_agi.c: Unable to create toast pipe:
> Too many open files
> [Feb 13 16:47:00] WARNING[9283] acl.c: Cannot create socket
> [Feb 13 16:47:00] WARNING[9283] rtp.c: Unable to allocate RTCP socket: Too
> many open files
> [Feb 13 16:47:00] WARNING[14732] acl.c: Cannot create socket
> [Feb 13 16:47:00] WARNING[14732] channel.c: Channel allocation failed:
> Can't create alert pipe! Try increasing max file descriptors with ulimit -n
> [Feb 13 16:47:00] WARNING[14732] chan_sip.c: Unable to allocate AST
> channel structure for SIP channel
> [Feb 13 16:47:00] WARNING[14732] app_dial.c: Unable to create channel of
> type 'SIP' (cause 0 - Unknown)
> [Feb 13 16:47:00] ERROR[14732] rtp.c: Unable to allocate socket: Too many
> open files
>
>
> Typing ulimit -a, shows :
> # ulimit -a
> core file size          (blocks, -c) 0
> data seg size           (kbytes, -d) unlimited
> scheduling priority             (-e) 0
> file size               (blocks, -f) unlimited
> pending signals                 (-i) 16382
> max locked memory       (kbytes, -l) 64
> max memory size         (kbytes, -m) unlimited
> open files                      (-n) 1024
> pipe size            (512 bytes, -p) 8
> POSIX message queues     (bytes, -q) 819200
> real-time priority              (-r) 0
> stack size              (kbytes, -s) 8192
> cpu time               (seconds, -t) unlimited
> max user processes              (-u) unlimited
> virtual memory          (kbytes, -v) unlimited
> file locks                      (-x) unlimited
>
>
> So it seems that increasing this open files limit from 1024 to 2048 could
> work around the above issue.
>
> Strangely, I can't find much online doc on ulimit and its usage.
> My main source is http://ss64.com/bash/ulimit.html
> and I also found this
> http://lists.digium.com/pipermail/asterisk-dev/2006-October/024091.htmlwhere I could read
>
> >* And what does 'ulimit -n' say for your Asterisk process?*
>
>
>
> 1. How can I specificially read "ulimit -n" for asterisk, for instance
> when asterisk is run by an asterisk user which has no login or shell ?
>
Finally, it seems this command is enough :
su asterisk --shell /bin/sh --command "ulimit -n"


> 2. Is there an easy and safe way to increase the number of files opened by
> asterisk ?
>
Replace the question above by this one
"Is there an easy and safe way to artificially increase the number of files
opened by asterisk ?"


>
>
> Regards
>
>
>
>
>
>
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