- Which version of Java?
- What does a thread dump of Tomcat give (kill -QUIT, result goes to
catalina.out)
- Does direct connect to Tomcat http connector still work?
- Can you still connect from the Apache server to the Tomcat jk
connector via telnet?
- What's the config of your jk conector (tomcat side) and of mod_jk?
- What are the contents of the mod_jk log file and the Apache error log?
- If it happens, will restarting only Apache fix the hang?

nageshsrao wrote:
>
> we have upgraded our environment to following software specs.
>
> on Redhat AS 3.0 (update 8), tomcat 5.5.23, apache 2.0.46 and JK 1.2.23
> plugin.  intermittently we see the following error in the error log of
> tomcat and then the whole site just gets hung. and no users will be to
> procede with any operation. this is suppose to go to Staging, could help us
> getting this resolved.
>
> [Mon Jul 09 11:27:19 2007] [info] (104)Connection reset by peer:
> core_output_filter: writing data to the network
> [Mon Jul 09 11:27:19 2007] [info] (32)Broken pipe: core_output_filter:
> writing data to the network
> [Mon Jul 09 11:27:23 2007] [info] (104)Connection reset by peer:
> core_output_filter: writing data to the network
> [Mon Jul 09 11:27:23 2007] [info] (32)Broken pipe: core_output_filter:
> writing data to the network
>
> let us know if any further information required, i will upload it
> immediately.

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