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http://issues.apache.org/bugzilla/show_bug.cgi?id=43472

           Summary: New version socket_is_connected breaks http keep-alive
                    connections
           Product: Apache httpd-2
           Version: 2.2.6
          Platform: Other
        OS/Version: Solaris
            Status: NEW
          Severity: normal
          Priority: P2
         Component: mod_proxy
        AssignedTo: [email protected]
        ReportedBy: [EMAIL PROTECTED]


I am using a front Apache compiled with worker MPM acting as a reverse proxy 
to access back-end http servers

While upgrading to 2.2.6 (from 2.2.4), back-end HTTP connections are no longer 
kept alive. While investigating, i found that connections were kept in the 
pool but were closed when later being reused.

Found the fix for patch 
(http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/modules/proxy/proxy_ut
il.c?r1=488822&r2=536291&diff_format=h) introduced the wrong behaviour: new 
version of is_socket_connected fails and connection is believed to be no 
longer usable.

When defining USE_ALTERNATE_IS_CONNECTED to 0 (to revert to old mechanism), 
everything is back to normal.

I have using Solaris 2.9 (which defines MSG_PEEK).

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