[OpenSIPS-Devel] need help to troubleshot issues

[Di-Shi Sun]

Hi Bogdan,

Thank you for your help. We will try it.

Thanks,

Di-Shi Sun.

  ----- Original Message ----- 
  From: Bogdan-Andrei Iancu 
  To: Di-Shi Sun ; OpenSIPS devel mailling list 
  Cc: Support of TransNexus 
  Sent: Sunday, February 12, 2012 5:50 PM
  Subject: Re: [OpenSIPS-Devel] need help to troubleshot issues


  Hi Di-Shi,

  My guess is (as your module probably does external communication via network) that some function in your module does block in a I/O op while trying to communication with an external entity.

  Based on your description I do not see how opensips it self can block (like the sl_send_reply() function).

  So, to debug something like that, simply "block" all opensips processes and then attach to them with gdb in order to take a backtrace (while opensips still running) - this will indicate where the processes blocked.

  Attach to the SIP worker processes - they are blocking ; the fifo process works ok as it does not handle SIP traffic, so it does no block .

  Regards,
  Bogdan

  On 02/06/2012 05:48 AM, Di-Shi Sun wrote: 
    Hi All,

    We are testing our module that gets routing info from outside of OpenSIPS. OpenSIPS routes calls based on these info. If our module returns empty routing info for a call to OpenSIPS, OpenSIPS uses sl_send_reply to fail the call.

    In heavy load, our module returns empty routing info to OpenSIPS quickly. Soon, all OpenSIPS SIP listen threads stick forever. OpenSIPS does not crash and it can still accept fifo command. We did not see any error message in OpenSIPS log. We also did not see any memory related message. If we make our module to return the empty routing info slower, OpenSIPS SIP listen threads do not stick.

    Would you please tell me what issue it may be and which part I should dig more deep?

    Thanks,

    Di-Shi Sun
    VoIP Routing, Accounting, Security
    www.TransNexus.com

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-- 
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
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