[Freeswitch-users] FreeSWITCH changing max_sessions automatically

William King william.king at quentustech.com
Thu Mar 27 21:11:56 MSK 2014


Is your FS instance running in a virtual environment?

William King
Senior Engineer
Quentus Technologies, INC
1037 NE 65th St Suite 273
Seattle, WA 98115
Main:   (877) 211-9337
Office: (206) 388-4772
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william.king at quentustech.com

On 03/27/2014 11:07 AM, Muhammad Naseer Bhatti wrote:
> No i am definitely not going to that SPS limit. The peak was set to 400
> so maybe this is just a skewed value. 1000 session does not look to be
> high load. The call is bridged and set to play silence and disconnects
> at random time under 1 minute.  The resources on the server also clearly
> seem to be available. I am not gearing this towards a how do i ....
> Performance kind of a thread but could there be something unusual here?
> 
> Sent from my iPad
> 
> On Mar 27, 2014, at 9:07 PM, Ken Rice <krice at freeswitch.org
> <mailto:krice at freeswitch.org>> wrote:
> 
>> Re: [Freeswitch-users] FreeSWITCH changing max_sessions automatically
>> You’re hitting a melt down protection... Once it reaches a limit and
>> cant allocate the additional resources for creating anew session it
>> will back down the max sessions limit to help save itself...
>>
>> The PEAK SPS there was a value seen at some point the SPS buffer...
>> Depending on you beating the machine to death it is possible that
>> number got skewed due to a timer miss
>>
>>
>> On 3/27/14 10:57 AM, "Muhammad Bhatti" <nbhatti at gmail.com> wrote:
>>
>>
>>     Just have noticed something new today. Testing a local instance on
>>     CentOS 6.0 with FreeSWITCH Version 1.2.23~64bit. FreeSWITCH seems
>>     to be changing the max_sessions param automatically. This happens
>>     when typically I bridge around 1000 sessions and whatever value I
>>     set to sps and max_sessions, it comes down.
>>      
>>     UP 0 years, 0 days, 0 hours, 37 minutes, 54 seconds, 362
>>     milliseconds, 294 microseconds
>>     FreeSWITCH (Version 1.2.23  64bit) is ready
>>     74716 session(s) since startup
>>      *976 session(s) - peak 1022, last 5min 985
>>     112 session(s) per Sec out of max 400, peak 9053, last 5min 317 <-
>>     BTW This peak was never tried, not sure why it says 9053
>>      5000 session(s) max
>>     min idle cpu 0.00/55.00
>>     Current Stack Size/Max 240K/8192K
>>      
>>     =======
>>     followed by
>>     =======
>>      
>>     switch_core_session.c:2288 Over Session Limit! 1013
>>     mod_sofia.c:4884 Error Creating Session
>>      
>>     =======
>>     And then
>>     =======
>>      
>>     freeswitch at internal> status
>>     UP 0 years, 0 days, 0 hours, 38 minutes, 35 seconds, 372
>>     milliseconds, 831 microseconds
>>     FreeSWITCH (Version 1.2.23  64bit) is ready
>>     76231 session(s) since startup
>>      560 session(s) - peak 1023, last 5min 1023
>>     0 session(s) per Sec out of max 400, peak 9053, last 5min 317
>>      1013 session(s) max
>>     min idle cpu 0.00/99.00
>>     Current Stack Size/Max 240K/8192K
>>      
>>      
>>     Is this something changed recently? Or some sort of server
>>     meltdown protection mechanism being forked :)
>>      
>>      
>>     *
>>
>> *
>> *--
>> Ken
>> _http://www.FreeSWITCH.org
>> http://www.ClueCon.com
>> http://www.OSTAG.org
>> _irc.freenode.net <http://irc.freenode.net> #freeswitch
>> Twitter: @FreeSWITCH
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org <mailto:consulting at freeswitch.org>
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
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> 
> 
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> 
> 
> 
> 
> Official FreeSWITCH Sites
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> http://www.cluecon.com
> 
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