mod_proxy error reading status line

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We're using apache mod_proxy to proxy requests to jboss servers on
different hosts.  We've noticed that we're getting sporadic http 502
response codes.  In the apache error file, I see LOTS of these errors:

[Tue Feb 26 13:55:49 2013] [error] [client 10.16.0.211] (70014)End of
file found: proxy: error reading status line from remote server
remotejboss-b
[Tue Feb 26 13:55:49 2013] [error] [client 10.16.0.211] proxy: Error
reading from remote server returned by
/STRService/services/SoapToRestSOAP
[Tue Feb 26 13:55:49 2013] [error] [client 10.16.0.211] no acceptable
variant: /usr/local/apache2/error/HTTP_BAD_GATEWAY.html.var

A bit of digging around, and I find this bug report:

https://issues.apache.org/bugzilla/show_bug.cgi?id=37770

This bug talks about setting 3 environment variables to resolve the issue.

SetEnv           force-proxy-request-1.0 1
SetEnv           proxy-nokeepalive       1
SetEnv           proxy-initial-not-pooled 1

My main problem is that I'm being asked to recreate this in our test
environment before promoting this change to the production apache
server.  Recreating this has proven to be VERY cumbersome.  I look at
what I can do on both sides of the connection (jboss and apache) to
try and recreate the issue.  I see things like connection timeout and
pool size, etc.  Any suggestions on how I might be able to get this to
occur in my test area would be GREAT!.

Thanks,
-mark-

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