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If running Tomcat as a Linux daemon, open the /etc/init.d/Tomcat.sh script and append the parameters to the CATALINA_OPTS variable: i.e.
Panel If CATALINA_OPTS is already set to this: CATALINA_OPTS="-Djava.library.path=/opt/tomcat/lib/.libs"
then change it to this: CATALINA_OPTS="-Djava.library.path=/opt/tomcat/lib/.libs -Xmx512m -Xms512m -XX:PermSize=256m -XX:MaxPermSize=256m -XX:NewSize=128m"For Ubuntu, see Jonah Mwogi's directions in the comments below .
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Solution for Tomcat memory leak:
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