We had the plugin configured for Debug ALL, as you suggested. Still no sign of 
an error.    Apache just stops responding to all requests.
We've also tried to reproduce this issue by pointing the same proxy to 
different WebLogic clusters.  Two other cluster's don't exhibit this behavior.  
It's tied to just the one.  We're currently combing through configurations to 
check for differences.  At a high level, it's the same versions of Windows, 
WebLogic, and Java.
Local content in Apache never causes the hang. As does content in the other 
apps that are being proxied.
Thanks for the help!

From: Kevin Castellow [mailto:kev.castel...@gmail.com]
Sent: Monday, May 14, 2012 10:22 PM
To: users@httpd.apache.org
Subject: Re: [users@httpd] Apache Hangs when proxying Java Requests with 
WebLogic Plugin

The weblogic plugin also has option to debug.  Have you verified the plugin 
does not show the error?
Add Debug ALL and by default it should log to /tmp directory.
Are you able to serve content in other directories that may have content 
locally stored on Apache and that do not trigger plugin?



On Mon, May 14, 2012 at 4:05 PM, Richters, Eriks (US - Arlington) 
<ericht...@deloitte.com<mailto:ericht...@deloitte.com>> wrote:
Hello Everyone,
I've run into a problem where Apache Hangs after several requests when proxying 
some Java based dashboards.  Pretty consistently, the dashboard loads fine the 
first four or five times, on the next time Apache is hung.    It just stops 
responding to all requests, including the standard Apache status page.   Apache 
never seems to come back on its own. Only when it's restarted.
The problem only happens with these java-based dashboards.   It doesn't hang on 
other content even going out to hundreds of requests.
Apache's logs don't show an error, basically it just stops responding.  It 
would seem like it stopped getting requests.    I'd love to have an error to 
search on.
CPU, Memory, IO all seem to be normal like it's not doing anything.
We're running Apache 2.2.21 on Windows Server 2003, with the WebLogic Proxy 
Plugin.   The backend server is  WebLogic 10.3.3, with Java 1.6.30.
SSL is configured between  WebLogic and Apache, but we're not seeing SSL errors.
Does anyone have any suggestions or comments to help resolve this error?
Thank You!



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