[asterisk-users] SIP Problems continue...

[Ken Williams]

Well, I removed and reinstalled Asterisk & Zaptel last night.  We
haven't had one lock up and we've had zero ghost channels kicking
around.  I copied my config files straight over, so I'm certain it's not
a dialplan issue (I was thinking the same thing you were, and I started
throwing hangup statements all over the place).  My best guess, I had
something conflicting with an older version/SVN that was causing grief.

We haven't had a day with zero crashes in 2 weeks, and it was
progressively getting worse where we were to the point of 4-5 crashes a
day.  Going an entire day with no crashes is extremely promissing.

I do have a lot of data I captured that I could contribute, but I'm not
sure we had the exact same problem.

ken 

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Olle E
Johansson
Sent: Thursday, May 10, 2007 12:43 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] SIP Problems continue...


9 maj 2007 kl. 18.14 skrev Ken Williams:

> SIP channel hang ups are progressively getting worse and I'm really 
> grasping at straws here trying to find out what the cause is.  The 
> problem start, once a week or so the SIP phones couldn't communicate 
> with the server, though there was no error message on the server and 
> everything appeared fine on the server.  It's now doing it multiple 
> times a day and I fear having to go back to our old phone system if I 
> can't find a fix in the near future.  When the SIP channel locks up 
> the only fix is to restart Asterisk.  SIP RELOAD & RELOAD CHAN_SIP do 
> no good.
>
> Here's a few things I've noticed and changes I've made in hopes of 
> making it better.  First, I've currently got 71 active SIP channels 
> when only 2 people are on the phone.  This doesn't happen every time, 
> but could be part of the cause.  The 'ghost' channels are all INVITES,

> how do I clear these without rebooting the system?
>
> 10.200.26.116    716         0a2a959d3d3  00102/00000  unkn   
> No       Init: INVITE
> 10.200.26.115    715         1dee947d485  00102/00000  unkn   
> No       Init: INVITE
> 10.200.26.104    704         28808764699  00102/00000  unkn   
> No       Init: INVITE
> 10.200.26.104    704         36d3e88f59c  00102/00000  unkn   
> No       Init: INVITE
> 10.200.26.104    704         0e00060800d  00102/00000  unkn   
> No       Init: INVITE

There is an open bug report on this in the bug tracker already.

I need your help to find what's causing this issue and provided I can
get proper information from you, will spend time locating the bug.

First, enable SIP history and catch history for these calls that hang
with "sip show history"

Secondly, check the dialplan and tell me more. Where are you calling,
why doesn't the other end respond?
It's usually calls where we retransmit a number of times and then forget
to destroy the calls.

If I can get a better description so I can repeat this, I'm sure the bug
can be killed.

In the bug tracker, there's a patch that will help you. However, until I
find more exact information about the nature of these calls, I'm
unwilling to commit it. To commit a fix to a poorly defined issue is
usually causing more issues, something I can do in trunk but don't want
to do in release code.

Please send the required information directly to my e-mail address and
I'll take a look.
Thank you for your assistance with this bug.

/Olle
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