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From Rainer Jung <>
Subject Re: tomcat mod_jk error log
Date Sun, 18 Nov 2007 14:03:27 GMT

we can't identify your problem without knowing your configuration.

Please give us

- your operating system
- your Tomcat connector configuration for the connector you talk to via
- your
- your httpd JK-directives
- your Tomcat-version and mod_jk-version

You can furthermore improve the chance of finding your problem by
running your test case when having "JkLogLevel debug" and posting
the full jk log file in addition.

I would guess, the problem could have to do with a firewall dropping
idle connections between Apache and Tomcat? If so, look at the Timeouts
documentation page of mod_jk.



Marthen LT schrieb:
> hi all,
> i have a live production server running tomcat & apache under linux.
> but recently my cpu usage is being consumed by the mod_jk log file.
> it keep logging and saying below warning/error messages:
> [Fri Nov 16 15:02:13 2007]  [jk_ajp_common.c (819)]: ERROR: can't
> receive the response message from tomcat, network problems or tomcat
> is down. err=-1
> [Fri Nov 16 15:02:13 2007]  [jk_ajp_common.c (717)]: Error
> ajp13:cping: awaited reply cpong, not received
> [Fri Nov 16 15:02:13 2007]  [jk_ajp_common.c (1026)]: Error sending
> request try another pooled connection
> what is happening?
> i try to restart my tomcat also didn't give me a solution.
> any help will be appreciated.
> thank you.

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