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Tuning Garbage Collection in Apache Tomcat

Discussion in 'Main Forum' started by arashsami, Sep 12, 2018.

  1. arashsami

    arashsami Guest

    I have the following parameters in tomcat6.conf

    JAVA_OPTS="-server -Xmx6144m -Xms3072m -XX:+UseConcMarkSweepGC -XX:MaxGCPauseMillis=999 -XX:ReservedCodeCacheSize=128m -XX:MaxPermSize=256m -Djava.awt.headless=true -Dcom.sun.management.jmxremote=true -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false -Djava.rmi.server.hostname= -Djava.rmi.server.useLocalHostname=false"


    but at peak time I see the following regularly,

    ERROR memory-watcher - used 87.73865761212004%, max 6403194880 reaping at priority CRITICAL


    is there any parameter I can use to to tune tomcat performance or GC ?

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