[Freeswitch-users] FreeSWITCH freezes when upgrading to 1.2 branch - SOLVED

Fri Sep 13 10:46:22 MSD 2013

Hi,
Thanks a lot for this bug reporting.
We need more bug/problems solved report like this. It is very interesting
and important to find help when we try to solve similar bugs and find
people who report a clear and factual solution to a problem and not only
bug or asking help with big thread with a lot a suggestion...

Thanks a lot and a nice work to solve this..!! :).

Regards,

2013/9/13 Anthony Minessale <anthony.minessale at gmail.com>

> yes
>
>
> On Thu, Sep 12, 2013 at 9:50 PM, Ashley Breeden <ash at url.net.au> wrote:
>
>> Hi Anthony,
>>
>> Thanks for doing that so quickly, greatly appreciated.
>>
>> Is it possible to have this patch added to the next 1.2 stable release?
>>
>> Ash.
>>
>> On 13/09/2013, at 1:23 AM, Anthony Minessale <anthony.minessale at gmail.com>
>> wrote:
>>
>> I checked the code and found the problem.  Zoiper was not happy to get a
>> NOTIFY with Expires: 0 after sending a SUBSCRIBE with Expires: 0
>> I added a patch to the code to skip responding with such a NOTIFY when
>> zoiper is present.
>>
>> This is not a real fix but its better than having everyone's box die.
>>
>>
>>
>> On Thu, Sep 12, 2013 at 9:40 AM, Ashley Breeden <ash at url.net.au> wrote:
>>
>>> Hi All,
>>>
>>> I wanted to share my findings with everyone on the list in case anyone
>>> runs into the same issue I had as it what a nightmare to find.  A special
>>> thanks must be given to FreeSWITCH Consulting, especially Eliot who
>>> assisted in debugging and giving me some fresh ideas to look at.
>>>
>>> For some time now I have struggled to upgrade my servers to 1.2 stable
>>> from 1.0.head (git-e3698c2 2012-03-23 01-21-55 +0100).  The issue I always
>>> faced was is that after I upgraded the servers it would run happily for the
>>> next 5-10 hours but for no reason FreeSWITCH would become unresponsive and
>>> stop accepting registrations.  If you ran command like show channels,
>>> status etc the command would just freeze and there would be no response.
>>>
>>> Typically the freeze would occur when the servers were practically idle,
>>> looking at the logs you would see:
>>>
>>> [WARNING] sofia_reg.c:1524 SIP auth challenge (REGISTER) on sofia
>>> profile 'internal' for [1050 at domain.com] from ip x.x.x.x
>>> [WARNING] sofia.c:1639 MSG Thread 2 Started
>>> [WARNING] sofia.c:1639 MSG Thread 1 Started
>>>
>>> In attempt to resolve it I tried new hardware, changed from Centos to
>>> Debian, MySQL to Postgres, nothing I seemed to do fixed the issue.
>>>
>>> I started to run some network analysis on the server and what I noticed
>>> is about 20 minutes before the server freeze the traffic would spike from
>>> 100kbps to around 400kbps, on closer inspection I noticed that the 300kbps
>>> spike was actually between the server and a single IP on port 5060.
>>>  Analysing the packets (tcpdump -s0 -A port 5060)  I could see that one
>>> registration was sending SUBSCRIBE events at the rate of about 300-400 per
>>> second and FreeSWITCH was sending a NOTIFY back for each SUBSCRIBE, once
>>> the server froze the traffic would stop which is what made it hard to find
>>> as you had to be looking at the network traffic before the freeze.  Once I
>>> knew the user causing the increased traffic flow I was able to work out
>>> that the user agent causing this was Zoiper (rev. 11137).  It would appear
>>> Zoiper would get into a loop with the server and keep sending SUBSCRIBE
>>> packets for the message waiting indicator.
>>>
>>> I have spoken to Zoiper who have taken the issue on board and informed
>>> me it does not happen on Zoiper 3, but does happen on Zoiper 2, however
>>> they plan to fix it in the next release of Zoiper 2.  They suggested for
>>> the moment to disable the MWI Subscribe option by doing "Go to the
>>> preferences -> select your sip account -> enable "show advanced options"
>>> andchange the mwi subscribe drop down to "disabled"
>>>
>>> The strange thing with all this is that the same Zoiper client never had
>>> a problem on version 1.0.head (git-e3698c2 2012-03-23 01-21-55 +0100) but
>>> as soon as you upgraded to 1.2 or even the current git versions you would
>>> find that FreeSWITCH and Zoiper would get into a SUBSCRIBE/NOTIFY Loop.
>>>
>>> I hope this information is of some help to someone else in the future
>>> and is able to ensure they do not have to go through the same nightmare I
>>> did.
>>>
>>> If anyone has any suggestions on ways to limit the SUBSCRIBE/NOTIFY
>>> responses so that you can avoid this happening in the future I would be
>>> very interested to hear, even if you have any other feedback that might
>>> have assisted in finding this issue quicker I would be very interested.
>>>
>>>
>>>   Regards,
>>>
>>> *Ashley Breeden*
>>> URL Networks Pty Ltd
>>> *WWW:* http://www.url.net.au
>>> *Twitter: *@urlnetworks
>>>
>>> *
>>> *
>>>
>>>
>>>
>>>
>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://wiki.freeswitch.org
>>> http://www.cluecon.com
>>>
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>>
>>>
>>
>>
>> --
>> Anthony Minessale II
>>
>> FreeSWITCH http://www.freeswitch.org/
>> ClueCon http://www.cluecon.com/
>> Twitter: http://twitter.com/FreeSWITCH_wire
>>
>> AIM: anthm
>> MSN:anthony_minessale at hotmail.com
>> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>> IRC: irc.freenode.net #freeswitch
>>
>> FreeSWITCH Developer Conference
>> sip:888 at conference.freeswitch.org
>> googletalk:conf+888 at conference.freeswitch.org
>> pstn:+19193869900
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>>
>
>
> --
> Anthony Minessale II
>
> FreeSWITCH http://www.freeswitch.org/
> ClueCon http://www.cluecon.com/
> Twitter: http://twitter.com/FreeSWITCH_wire
>
> AIM: anthm
> MSN:anthony_minessale at hotmail.com
> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
> IRC: irc.freenode.net #freeswitch
>
> FreeSWITCH Developer Conference
> sip:888 at conference.freeswitch.org
> googletalk:conf+888 at conference.freeswitch.org
> pstn:+19193869900
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>
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