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  • Add the following parameters to the JAVA_OPTS environment variable (all ### is the amount of memory in megabytes to allow for the option):
    • -XX:+UseG1GC - this enables a garbage collector that reduces the memory requirements needed for larger metadata files
    • -Xmx1500m - this is the maximum amount of memory that Tomcat may use, at least 1.5G is recommended for larger (>25M) metadata files
    • -XX:MaxPermSize=128m - (Oracle Java 6/7 specific option) the maximum amount of memory allowed for the permanent generation object space
  • Under Windows, the JAVA_OPTS variables are set via the "Manage Tomcat" application in the "Java" Tab.
  • Limit the allowed size of POST submissions to any HTTP or AJP connectors (including the SOAP connector below) by adding the maxPostSize attribute. A size of about 100K (100000) is a reasonable choice.

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