How do I get Tomcat 7 to start up faster in Linux CentOS kernel version 2.6.18?

Posted by user1786833 on Server Fault See other posts from Server Fault or by user1786833
Published on 2012-10-30T21:08:58Z Indexed on 2012/10/31 11:03 UTC
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java

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linux

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centos

I am experiencing a problem with slow start up times for Tomcat 7. I have done some testing by tweaking configuration parameters both on Linux CentOS kernel version 2.6.18 and on Windows 7 using this link as my primary guide: http://wiki.apache.org/tomcat/HowTo/FasterStartUp and managed only a modest improvement.

The improvements seemed to result when I added metadata-complete="true" attribute to the element of my WEB-INF/web.xml file and when I added the names of almost all the jars we use for our application to the tomcat.util.scan.DefaultJarScanner.jarsToSkip property in conf/catalina.properties file.

I've also used this JAVA_OPTS in the setenv.sh file:

JAVA_OPTS="$JAVA_OPTS -server -Xms1536m -Xmx1536m -XX:MaxPermSize=256m -XX:NewRatio=2 -XX:+UseParallelGC -XX:ParallelGCThreads=2 -Dsun.rmi.dgc.client.gcInterval=1800000 -Dsun.rmi.dgc.server.gcInterval=1800000 -Dorg.apache.jasper.runtime.BodyContentImpl.LIMIT_BUFFER=true "

but actually saw my start up times increase slightly.

Our QA and production environments are on Linux CentOS so I'm hoping to get more information on improving Tomcat 7 start up times in that environment.

My primary role is java developer and I don't have much system administration experience so I appreciate any input. Thank you for your time and suggestions.

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