[jboss-user] [Installation, Configuration & DEPLOYMENT] - Production server freezes every two to three days

[tuxzilla]

I am new to JBoss. I have a JBoss 4.2.0 running on RedHat CentOS 4.5 (2.6.9-42.0.3.EL_HPTRAID #1 SMP) that freezes every two to three days. 

When it does so I see many httpd processes spawned. Httpd is still logging request but 503 error is given. When I try to use kill -3 to get a thread dump nothing happens. I have to restart JBoss using service restart. This does not happen on another test server which is the same setup but has a much lighter load. 

Anybody knows what is happening? Is it because requests take too long to serve and take all listening threads? How do I time out a request that takes too long to serve? Thanks.

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