[asterisk-bugs] [Asterisk 0014562]: safe_asterisk can get multiple instances if killproc escalates to SIGKILL in service asterisk restart

[Asterisk Bug Tracker]

The following issue has been SUBMITTED. 
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http://bugs.digium.com/view.php?id=14562 
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Reported By:                davidw
Assigned To:                
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Project:                    Asterisk
Issue ID:                   14562
Category:                   General
Reproducibility:            have not tried
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.6.0.1 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-02-26 12:37 CST
Last Modified:              2009-02-26 12:37 CST
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Summary:                    safe_asterisk can get multiple instances if killproc
escalates to SIGKILL in service asterisk restart
Description: 
Weird behaviour was observed in which we got Remote UNIX connection and
disconnections continuously repeated.  It turned out that we had two copies
of safe_asterisk running.

Although I didn't do this myself, I believe this was the result of using
"service asterisk restart" on an asterisk that was in distress (deadlock,
at least).  I think what happened is that the killproc escalated to
SIGKILL, which was not recognized by the original safe_asterisk, so it
continued to run.  Meanwhile the new safe_asterisk was started, but both
checks for a running asterisk failed, either because it was too much in
distress, or because the console listener had shut down in response to
killproc's SIGTERM.
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Issue History 
Date Modified    Username       Field                    Change               
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2009-02-26 12:37 davidw         New Issue                                    
2009-02-26 12:37 davidw         Asterisk Version          => 1.6.0.1         
2009-02-26 12:37 davidw         Regression                => No              
2009-02-26 12:37 davidw         SVN Branch (only for SVN checkouts, not tarball
releases) => N/A             
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