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How and where do I change the option for JVM heap memory in Tomcat?

April 26, 2017heap JVM memory option Tomcat

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How and where do I change the option for JVM heap memory in Tomcat?

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Location: http://www.jguru.com/faq/view.jsp?EID=416239 Created: May 6, 2001 Modified: 2003-02-18 02:47:24.27 Author: Alessandro A. Garbagnati (http://www.jguru.com/guru/viewbio.jsp?EID=32727) Question originally posed by Nimmi Shamdasani (http://www.jguru.com/guru/viewbio.jsp?EID=396584 Nimmi, If you look into the tomcat.sh or tomcat.bat under the bin directory of tomcat, you can see an environment variable called TOMCAT_OPTS. You can use it for passing all the JVM specific parameters, like the -X or -D. You can set it directly in the file, or set it in the environment before calling it. For example in unix you can do: export TOMCAT_OPTS=” -Xms15M -Xmx15M” tomcat.sh start For Tomcat 4.x.x, the logic is the same, but the filenames and the variable name are different. The environment variable is CATALINA_OPTS, and you can find references in catalina.sh or catalina.bat.