[asterisk-bugs] [Asterisk 0017521]: Brief lagginess on IAX2 channels is fatal

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17521 
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Reported By:                jcovert
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17521
Category:                   Channels/chan_iax2
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.6.2.8 
JIRA:                       SWP-1718 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-06-17 10:32 CDT
Last Modified:              2010-07-18 09:27 CDT
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Summary:                    Brief lagginess on IAX2 channels is fatal
Description: 
The problem reported in issue https://issues.asterisk.org/view.php?id=15609 and
https://issues.asterisk.org/view.php?id=15900 continues:

[Jun 17 09:55:14] WARNING[15579]: channel.c:1044 __ast_queue_frame:
Exceptionally long voice queue length queuing to IAX2/x38-9660
[Jun 17 09:57:54] WARNING[15579]: channel.c:1044 __ast_queue_frame:
Exceptionally long voice queue length queuing to IAX2/x38-9660
[Jun 17 09:57:54] WARNING[15579]: channel.c:1044 __ast_queue_frame:
Exceptionally long voice queue length queuing to IAX2/x38-9660
[Jun 17 09:58:07] NOTICE[15579]: chan_iax2.c:11447 __iax2_poke_noanswer:
Peer 'x29' is now UNREACHABLE! Time: 2
[Jun 17 09:58:07] NOTICE[15579]: chan_iax2.c:11447 __iax2_poke_noanswer:
Peer 'jrclaptop' is now UNREACHABLE! Time: 4
[Jun 17 09:58:07] NOTICE[15579]: chan_iax2.c:11447 __iax2_poke_noanswer:
Peer 'x38' is now UNREACHABLE! Time: 136
[Jun 17 09:58:10] WARNING[15579]: channel.c:1044 __ast_queue_frame:
Exceptionally long voice queue length queuing to IAX2/x38-9660
[Jun 17 09:58:10] WARNING[15579]: channel.c:1044 __ast_queue_frame:
Exceptionally long voice queue length queuing to IAX2/x38-9660
[Jun 17 09:58:10] WARNING[15579]: channel.c:1044 __ast_queue_frame:
Exceptionally long voice queue length queuing to IAX2/x38-9660
    -- Hungup 'IAX2/x38-9660'
  == Spawn extension (dialstation, 38, 1) exited non-zero on
'SIP/x28-0000048b'
[Jun 17 09:58:12] NOTICE[15579]: chan_iax2.c:10418 socket_process: Peer
'x29' is now REACHABLE! Time: 2
[Jun 17 09:58:12] NOTICE[15579]: chan_iax2.c:10418 socket_process: Peer
'jrclaptop' is now REACHABLE! Time: 4
[Jun 17 09:58:12] NOTICE[15579]: chan_iax2.c:10418 socket_process: Peer
'x38' is now REACHABLE! Time: 137

This tends to reproduce for me only on transatlantic calls.

/john

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Relationships       ID      Summary
----------------------------------------------------------------------
related to          0015609 [patch] WARNING[23025]: channel.c:952 _...
related to          0015900 Console flood & CPU load 100% when ...
related to          0017625 "I should never be called!" m...
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---------------------------------------------------------------------- 
 (0124679) hoby (reporter) - 2010-07-18 09:27
 https://issues.asterisk.org/view.php?id=17521#c124679 
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I'm facing this type of bug, mine is like
https://issues.asterisk.org/view.php?id=15609. 
Calls arrive in Queue and when connecting to Agent displays 

[2010-07-18 17:11:09] WARNING[5393]: channel.c:952 __ast_queue_frame:
Exceptionally long voice queue length queuing to Local/8552 at AGENT-eb6c,1
[2010-07-18 17:11:22] WARNING[5525]: channel.c:952 __ast_queue_frame:
Exceptionally long voice queue length queuing to Local/8528 at AGENT-a90b,1
[2010-07-18 17:12:22] WARNING[6264]: channel.c:952 __ast_queue_frame:
Exceptionally long voice queue length queuing to Local/8533 at AGENT-d608,1


Those warnings seems to happen when agent can not hear the caller from
queue until some seconds (up to 10s) after he pick up the call, and on the
other party the caller in the queue have the musiconhold blanked out for
some second.

We used Asterisk 1.4.21.2 for many months without this delay and recently
this sort of delay appears, we have tried up to run Asterisk 1.4.21.2 with
few calls and still has those symptom. we decide to upgrade to 1.4.33.1 and
the symptom persist with displaying "exceptionally long voice queue" this
also happen with 1.34rc2.

Our asterisk run on bi-quad core 3ghz with 24G of memory.

I tried to fix the issue relaying on the patch
https://issues.asterisk.org/view.php?id=15609 but when this is
applied, agent get phone's ringing and when they pickup hear no voice and
meanwhile the caller from queue still hear music on hold.

Should i open new issue or this relate to this issue? 

Issue History 
Date Modified    Username       Field                    Change               
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2010-07-18 09:27 hoby           Note Added: 0124679                          
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