[asterisk-bugs] [Asterisk 0016081]: [patch] utils.c:938 ast_carefulwrite: Timed out trying to write causes corruption to astdb

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16081 
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Reported By:                aragon
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16081
Category:                   Resources/res_agi
Reproducibility:            have not tried
Severity:                   major
Priority:                   normal
Status:                     acknowledged
Target Version:             1.4.28
Asterisk Version:           SVN 
JIRA:                       SWP-286 
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:             2009-10-15 10:02 CDT
Last Modified:              2009-11-20 12:28 CST
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Summary:                    [patch] utils.c:938 ast_carefulwrite: Timed out
trying to write causes corruption to astdb
Description: 
Agent addmember to local extensions causes the agent to be logged as
non-existent channels when ast_carefulwrite times out during login.

[Oct 15 10:40:07] NOTICE[29962]: utils.c:938 ast_carefulwrite: Timed out
trying to write
[Oct 15 10:40:07] NOTICE[29962]: utils.c:938 ast_carefulwrite: Timed out
trying to write

Here  is an example of the corruption where the same local extension is
logged twice.  The "outgoing" agent cannot logoff unless I manually remove
from astdb.  The local agent can logoff but since the outgoing cannot calls
entering queue fail to reach agents and the local channel cannot log back
in.

Local/3345 at queuefifteen-outgoing/n (dynamic) (Invalid) has taken no calls
yet
      Local/3345 at queuefifteen-agent/n (dynamic) (Not in use) has taken 2
calls (last was                                                            
    1915 secs ago)

======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
related to          0014843 1 in 3 incoming zap PRI calls do no hea...
related to          0015609 [patch] WARNING[23025]: channel.c:952 _...
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 (0114053) aragon (reporter) - 2009-11-20 12:28
 https://issues.asterisk.org/view.php?id=16081#c114053 
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More debug info from CLI here:

    -- Executing [1625 at default-local-devices:4]
Dial("Local/1625 at default-agent-83af,2", "SIP/1625||twk") in new stack
    -- Called 1625
    -- SIP/1625-0000e3b4 answered Local/1625 at default-agent-83af,2
    -- Local/1625 at default-agent-83af,1 answered SIP/siptrunk-0000e3b3
    -- Stopped music on hold on SIP/siptrunk-0000e3b3
[Nov 20 13:19:50] NOTICE[11600]: utils.c:938 __ast_carefulwrite: Timed out
trying to write at line 546 of astman_append in file manager.c 

Issue History 
Date Modified    Username       Field                    Change               
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2009-11-20 12:28 aragon         Note Added: 0114053                          
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