Hi Olivier,
you have to edit /etc/security/limits.conf. Take a look at "man
limits.conf".
Some users also modify the Asterisk-Start-Script. You can insert an
"ulimit -n 8192" in the "Start-Case".
Best regard
-Thorsten-
Am 15.02.2013 18:48, schrieb Olivier:
2013/2/15 Olivier <[email protected] <mailto:[email protected]>>
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.html
where 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 ?"
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