[asterisk-bugs] [Asterisk 0014173]: Agent shows "(In use)" and will not receive queue calls while agent is logged in waiting for queue calls (1.4.22)

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=14173 
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Reported By:                nathan
Assigned To:                putnopvut
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Project:                    Asterisk
Issue ID:                   14173
Category:                   Applications/app_queue
Reproducibility:            random
Severity:                   major
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.4.22 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2009-01-05 13:54 CST
Last Modified:              2009-01-13 16:43 CST
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Summary:                    Agent shows "(In use)" and will not receive queue
calls while agent is logged in waiting for queue calls (1.4.22)
Description: 
I have a queue with approximately 50 total agents, about 20 of which will
be logged in at any given time.  Seemingly randomly (if there's a pattern,
I haven't discovered it), sometimes after an agent completes an inbound
call the agent status (as displayed in "show queue x") changes to "(In
use)" and the agent never again receives a call until that agent logs off
and logs back into the queue.  

This will happen about 15-20 times every day with seemingly random agents
at seemingly random times.  It happens when there's only one agent logged
in or when we have a full 20 logged in.  I can't identify a pattern that
would cause this problem.

This causes a huge problem, because we are missing calls and breaking our
SLA agreements with clients even though we have enough capacity and people
sitting waiting for calls.  As a workaround we are trying to get each agent
to log off the queue and log back on the queue after each call, but they
often forget.
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 (0097666) nathan (reporter) - 2009-01-13 16:43
 http://bugs.digium.com/view.php?id=14173#c97666 
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Ok, I attached the file last1.75m.bz2, which is the last 1.75 million lines
of queue_tracker, which is about 10 minutes including the time that I ran
my little debug script.

I would have included more, but that was as big as I could get it while
still getting the bzipped file to fit under the 2000K limit.  (not
2048K=2MB, mind you--sort of annoying).

@a_villacis: I would prefer getting an actual fix over trying to migrate
to a different protocol at this point, but if we can't get the problem
resolved any other way then I will certainly try changing communication
protocols. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-01-13 16:43 nathan         Note Added: 0097666                          
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