[asterisk-bugs] [Asterisk 0014207]: iax2 trunked channels not being cleared

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=14207 
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Reported By:                clive18
Assigned To:                dvossel
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Project:                    Asterisk
Issue ID:                   14207
Category:                   Channels/chan_iax2
Reproducibility:            have not tried
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.2.X 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases):  1.2  
SVN Revision (number only!): 162868 
Request Review:              
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Date Submitted:             2009-01-10 14:53 CST
Last Modified:              2009-05-04 09:49 CDT
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Summary:                    iax2 trunked channels not being cleared
Description: 
It appears to me as a memory leak, as many old iax2 channels are appearing
in the "iax2 show netstats" as:
(None)                    1000    0   40     0   0     0    0      0    0 
  0     0   0     0    0      0

At present I see 36 out of 57 of these channels reported on "iax2 show
netstats", but when I do a "show channels" there are only 21 calls.

In my humble opinion, something on the channel is not being closed
properly at the end of a call.
Before I was using version 1.2.6 and had no issue at all. I know its been
a long time since then, but I know something is now broken, although I am
not sure which is the latest version which has this behavior.

If I leave asterisk to run on its own, after 1 week there are about 60 of
these ghost channels displayed, and the number keeps increasing with time.
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 (0104095) abalashov (reporter) - 2009-05-04 09:49
 http://bugs.digium.com/view.php?id=14207#c104095 
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What you are describing appears to be consistent with what I am seeing in
1.4.24, to which I upgraded from 1.4.21.2 to fix the problem.  A few
phantom IAX2 channels will show up briefly, nothing ever significantly in
excess of actual calls in progress.

In 1.4.21.2 - and, I think, in all scenarios in which people have captured
this problem in its full manifestation - what you are describing is false. 
It most definitely causes performance problems.  I have a system that never
had more than http://bugs.digium.com/view.php?id=11#c10 concurrent calls going
through it, and usually under 4. 
Over the course of the day, thousands of zombie IAX2 channels had been run
up until the process simply became sluggish and unresponsive. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-05-04 09:49 abalashov      Note Added: 0104095                          
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