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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 50151] New: Software caused connection abort and apache process in "W" Sending Reply mode freezes
Date Mon, 25 Oct 2010 16:17:28 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=50151

           Summary: Software caused connection abort and apache process in
                    "W" Sending Reply mode freezes
           Product: Apache httpd-2
           Version: 2.2.16
          Platform: HP
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: dv1983@list.ru


Apache writes "Software caused connection abort ..." error message to logfile
like this:

[Sat Oct 23 06:20:32 2010] [error] Software caused connection abort at
/home/prf/lib/atom_html.pm line 661.\n\t...propagated at
/home/prf/lib/atom_html.pm line 668.\n

Then, we can see one of the apache processes freezed in "W" Sending Reply mode,
that does nothing.

And we can see TCP CLOSE_WAIT connection, like this:

apache2   20336  apache    0u     IPv4  253746913        0t0        TCP
node1:hosts2-ns->node1:40649 (CLOSE_WAIT)

I can restart apache server only to remove it freezed apache process.

I can't find any apache configuration settings to set CLOSE_WAIT timeout, did
it manually as SIGALRM handler, that kills apache process, but it isn't a
solution, of course.

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