On 27.10.2010 15:24, Jost Richstein wrote:
Hi,

I have the following problem on a Windows Server 2003 64Bit (AMD).

Configuration:
IIS 6, isapi_redirect.dll AMD64 Version 1.2.30, Tomcat 5.5.27, JDk
1.6.0_12 64Bit.

I am using the following small worker.properties:

ps=\
worker.list=ajp13
worker.ajp13.port=8010
worker.ajp13.host=localhost
worker.ajp13.type=ajp13
worker.ajp13.connection_pool_size=500

My isapi_redirect.properties contains only (no other parameters set)

extension_uri
log_file
log_level (error)
worker_file
worker_mount_file

My Tomcat site works fine in general, there are up to 1.400 users active
and the site
answers requests very fast. However I have the following log entries
every few minutes
(sometimes every few seconds) in jk.log. Every time that pair of entries:

[Wed Oct 27 12:15:37.764 2010] [3156:3284] [error]
ajp_service::jk_ajp_common.c (2559): (ajp13) connecting to tomcat failed.
[Wed Oct 27 12:15:37.811 2010] [3156:3284] [error]
HttpExtensionProc::jk_isapi_plugin.c (2195): service() failed with http
error 500

Increase your log_level to "info". This will provide additional log lines directly before the ones you cited which contain more detailed information about the root cause.

Regards,

Rainer

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