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From "Sascha Wehnert" <>
Subject java.exe cause high cpu utilization
Date Mon, 22 Jan 2007 13:00:51 GMT
Hi folks, 


Problem: As soon as I access anything within tomcat (manager, probeā€¦) java.exe 

starts to stress the cpu. If I access the applications via port 8080 and bypass 

Apache, everything is fine. 


So my assumptions is that something within my Apache configuration is wrong but 

I cannot see what. This is an extract from my httpd.conf for mod_jk:


LoadModule jk_module modules/


<IfModule mod_jk.c>

  JkWorkersFile /lucaswm/apache2/conf/

  JkLogFile logs/mod_jk.log

  JkLogLevel info

  JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "


  JkMount /manager/* wintomjava

  JkMount /probe/* wintomjava

  JkMount /standard2/* wintomjava

</IfModule> file looks like this:






I also tried mod_jk 1.2.20 but still no luck. For testing I also setup a different tomcat

the same system but this one showed exactly the same behaviour. 


System configuration (VMware, w2k3, 1GB RAM, 6GB disk space):


Apache 2.0.59

Mod_jk 1.2.19

Tomcat 5.5.20

java version "1.5.0_09"

Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_09-b03)

Java HotSpot(TM) Server VM (build 1.5.0_09-b03, mixed mode)


Your help and ideas are greatly appreaciated! 







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