[Freeswitch-users] FreeSWITCH suddenly stopped accepting calls

[Steven Ayre]

>
> User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-46f097c 2011-08-07 01-33-26
> -0400


That's very old, you should update. There'll be a lot of bugfixes since
then, and the age will make it harder to support.

1)      **We have a lot of monitoring in place for all our applications,
> and I could probably alerted our Operations team if FreeSWITCH crashed or
> some error was logged in the FS log. However I was unable to found anything
> meaningful in the logs that indicates any sort of error. It just suddenly
> stopped creating new channels, and we get the alert/complain from the
> client – ouch!


You could try sending a SIP OPTIONS packet from a monitoring system and
check for a reply. Consecutive requests with no reply (timeout) could
indicate a problem. One isn't enough in case the packet gets dropped.

2)      **I was also not sure what other information I should collect when
> something like this happens. As the application didn’t crash it didn’t
> create any coredump files. I know that restarting it fixes the problem, but
> that is not what the client wants to hear.


Check out gcore - it can create a coredump of a running process. Very
useful for debugging.

If you're compiling from git, you'll need to keep the source you compiled
from (gdb needs the source to interpret the coredump).

-Steve




On 30 November 2012 17:06, Hector Geraldino <Hector.Geraldino at ipsoft.com>wrote:

>  Hello everyone,****
>
> ** **
>
> I have a FreeSWITCH instance that has been running for months without an
> issue, until last Monday. The setup is for a hotline where we receive
> incoming calls transferred from the Client Cisco UCM to our FreeSWITCH
> instance, and the calls are handled by a custom Java application via ESL.*
> ***
>
> ** **
>
> As I said it was working flawlessly for weeks, but last Monday FreeSWITCH
> just stopped accepting new calls. I was able to see the SIP messages
> flowing back and forth from FS<->UCM, but looks like FreeSWITCH was unable
> to create new channels. Once I restarted FreeSWITCH everything was back to
> normal. Here are links to the SIP/console logs I was able to capture which
> covers both scenarios (non-working FS and working FS):****
>
> ** **
>
> Non-working: http://pastebin.freeswitch.org/20275****
>
> Working: http://pastebin.freeswitch.org/20274****
>
> ** **
>
> As you can see, in the non-working scenario no channels were created on
> FreeSWITCH, so no 200 ACK message was sent back to UCM after the INVITE,
> which caused the UCM to send a CANCEL message after a few seconds and a 487
> Request terminated from FS -> UCM. Restarting the application fixed the
> issue, but I have a couple of questions regarding this:****
>
> ** **
>
> **1)      **We have a lot of monitoring in place for all our
> applications, and I could probably alerted our Operations team if
> FreeSWITCH crashed or some error was logged in the FS log. However I was
> unable to found anything meaningful in the logs that indicates any sort of
> error. It just suddenly stopped creating new channels, and we get the
> alert/complain from the client – ouch!****
>
> **2)      **I was also not sure what other information I should collect
> when something like this happens. As the application didn’t crash it didn’t
> create any coredump files. I know that restarting it fixes the problem, but
> that is not what the client wants to hear.****
>
> ** **
>
> Any recommendations on what to do/look at to proactively detect this kind
> of issues and/or how to collect the appropriate info to get the root cause
> will be greatly appreciated. ****
>
> ** **
>
> Thank you all for your time,****
>
> Hector****
>
> _________________________________________________________________________
> 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
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20121130/230c37c9/attachment-0001.html