DO NOT REPLY [Bug 39499] - error reading status line, reverse proxy, broken pipe

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------- Additional Comments From james@arpstorm.net  2006-05-07 00:49 -------
I have been seeing a similar issue when using 2.2.2, worker MPM and an IIS
backend server. Everything works ok with an apache backend.

Have done some limited investication, 

Everything works fine untill the backend server closes the connection, due to a
keep-alive timeout ( hence why it works better under a higher load as the
timeout is reached less often due to mod_proxy pooling connections). Have found
the IIS closes the connection with an RST packet while apache does a fin/ack
reset handshake. When mod_proxy recv's a rst from the backend the next request
to that proxy worker causes the issue listed here. A subsequent reqest sets up a
new back end connection and things work ok again until the keep-alive time out.

I have tried this with the pre-threaded mpm and everything is fine. Have also
found the same issue with HEAD.

My solution was to set the timeout on the backend server to something stupid, in
my case a week.

I have a decent dev system in the lab atm so if needed can provide any addition
info if instructions are given.

James

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