[Freeswitch-users] 503 Maximum Calls

[Michael Jerris]

was probably the default 1000, then when hit with a big peak the box
couldn't handle, it failed to create some threads, causing freeswitch to
automatically lower the limit to better match what the box is capable of
handling.  if you grep the logs for 973 you'll see a log where it's lowered.

On Tue, Dec 13, 2016 at 12:27 PM Igor Potjevlesch <
igor.potjevlesch at gmail.com> wrote:

> Hello,
>
>
>
> During some call peaks, FS replies with 503 Maximum Calls and produces the
> following log:
>
>
>
> /var/log/freeswitch/freeswitch.log.2016-12-12-10-20-33.1:2016-12-12
> 10:08:54.964919 [CRIT] switch_core_session.c:2270 Over Session Limit! 973
>
> /var/log/freeswitch/freeswitch.log.2016-12-12-10-20-33.1:2016-12-12
> 10:08:54.964919 [CRIT] mod_sofia.c:4406 Error Creating Sessi
>
>
>
> I dig into the configuration to change many settings related to this
> error. So, our current "status" is:
>
>
>
> FreeSWITCH (Version 1.6.5 git 70b8c17 2015-11-20 20:57:50Z 64bit) is ready
>
> 1207363 session(s) since startup
>
> 684 session(s) - peak 983, last 5min 694
>
> 0 session(s) per Sec out of max 400, peak 164, last 5min 8
>
> 973 session(s) max
>
> min idle cpu 0.00/39.77
>
> Current Stack Size/Max 240K/8192K
>
>
>
> I don't understand how the 973 sessions max is determined? The
> switch.conf.xml is set as follow:
>
>
>
>   <settings>
>
>     <param name="colorize-console" value="true"/>
>
>
>
>     <param name="dialplan-timestamps" value="false"/>
>
>
>
>     <param name="max-db-handles" value="50"/>
>
>     <param name="db-handle-timeout" value="10"/>
>
>
>
>     <param name="max-sessions" value="4000"/>
>
>     <param name="sessions-per-second" value="400"/>
>
>     <param name="loglevel" value="debug"/>
>
>
>
>     <param name="mailer-app" value="sendmail"/>
>
>     <param name="mailer-app-args" value="-t"/>
>
>     <param name="dump-cores" value="yes"/>
>
>
>
>     <param name="rtp-enable-zrtp" value="false"/>
>
>
>
>     <param name="min-idle-cpu" value="0"/>
>
>     <param name="enable-clock-nanosleep" value="true"/>
>
>
>
>   </settings>
>
>
>
> I also made modifications to the OS himself, into limits.conf:
>
>
>
> freeswitch       hard    nofile          500000
>
> freeswitch       soft    nofile          500000
>
> freeswitch       hard    nproc           62815
>
> freeswitch       soft    nproc           62815
>
>
>
> The setup looks to be active:
>
>
>
> # cat /proc/25695/limits
>
> Limit                     Soft Limit           Hard Limit
> Units
>
> Max cpu time              unlimited            unlimited
> seconds
>
> Max file size             unlimited            unlimited
> bytes
>
> Max data size             unlimited            unlimited
> bytes
>
> Max stack size            245760               8388608
> bytes
>
> Max core file size        unlimited            unlimited
> bytes
>
> Max resident set          unlimited            unlimited
> bytes
>
> Max processes             62815                62815
> processes
>
> Max open files            500000               500000
> files
>
> Max locked memory         65536                65536
> bytes
>
> Max address space         unlimited            unlimited
> bytes
>
> Max file locks            unlimited            unlimited
> locks
>
> Max pending signals       62815                62815
> signals
>
> Max msgqueue size         819200               819200
> bytes
>
> Max nice priority         0                    0
>
> Max realtime priority     0                    0
>
> Max realtime timeout      unlimited            unlimited
> us
>
>
>
> Any idea? Thanks.
>
>
>
> Regards,
>
>
>
> Igor.
>
>
>
>
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