[Freeswitch-users] 503 Maximum Calls

Wed Dec 14 01:40:50 MSK 2016

I think that there is enough hardware: 8GB of RAM and 8x2Ghz.

But before the error, freeswitch user was limited by OS to open 1024 files only. Is this can cause FS to lower the max session?

Regards,

Igor.

De : freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] De la part de Michael Jerris
Envoyé : mardi 13 décembre 2016 23:36
À : FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
Objet : Re: [Freeswitch-users] 503 Maximum Calls

if you are hitting that error… the answer is likely to upgrade your hardware to have enough to actually handle those limits, or else it will just lower itself again when it hits the same error next time

On Dec 13, 2016, at 5:29 PM, Igor Potjevlesch <igor.potjevlesch at gmail.com <mailto:igor.potjevlesch at gmail.com> > wrote:

Hi Michael,

Thanks for your response.

Indeed, I find this:

freeswitch.log.2016-12-05-11-24-27.1:Artoo reduces the max sessions to 973 thus, saving the switch from certain doom.

It was last Monday when I decided to modify the limits.conf.

So, what I can do to back on 4000 sessions max as defined in the switchs.conf? 

Regards,

Igor.

De : freeswitch-users-bounces at lists.freeswitch.org <mailto:freeswitch-users-bounces at lists.freeswitch.org>  [mailto:freeswitch-users-bounces at lists.freeswitch.org] De la part de Michael Jerris
Envoyé : mardi 13 décembre 2016 18:41
À : FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org <mailto:freeswitch-users at lists.freeswitch.org> >
Objet : Re: [Freeswitch-users] 503 Maximum Calls

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 < <mailto:igor.potjevlesch at gmail.com> 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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