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I want to increase the JVM memory settings for my Tomcat 5.5 instance (on Linux server with 1.8 gigs of memory).

Current JVM Status: Free memory: 15.60 MB Total memory: 26.00 MB Max memory: 405.37 MB

I just can't get these settings to budge. I tried the following:

  1. Added the following statement to "setenv.sh" in /tomcat/bin:

    export JAVA_OPTS="-server -Xms1024m -Xmx1024m -XX:MaxPermSize=256m"

  2. Added the following statement to "setenv.sh" in /tomcat/bin:

    export CATALINA_OPTS="-server -Xms1024m -Xmx1024m -XX:MaxPermSize=256m"

  3. Added the following statement to "setenv.sh" in /tomcat/bin:

    JAVA_OPTS="-Xmx1024m -Xms512m -server"

export JAVA_OPTS

  4. Added the following statement to "catalina.sh" in /tomcat/bin:

    CATALINA_OPTS="-server -Xms1024m -Xmx1024m -XX:MaxPermSize=256m"

  5. Added the following statement to "catalina.sh" in /tomcat/bin:

    JAVA_OPTS="-server -Xms1024m -Xmx1024m -XX:MaxPermSize=256m"

NONE of these changes made any impact on the JVM settings.

I have exhausted all options identified from various support sites, including: How to tune Tomcat 5.5 JVM Memory settings without using the configuration program and http://wiki.razuna.com/display/ecp/Adjusting+Memory+Settings+for+Tomcat

Thanks in advance.

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