Tuning uPortal Caches

uPortal contains a number of configurable caches that you may wish to tune to improve performance. Caches are tuned via the ehcache.xml file in uportal-war/src/main/resources/properties/ehcache.xml. This file contains hints about how to best tune the cache to match your expected number of portlets, sessions, etc. For example:

    <!--
     | Caches PortletPreferencesImpl's list of preference objects
     | - 1 x subscribed portlet x user
     | - 1 x published portlet
     | - replicated by invalidation
     +-->
    <cache name="org.jasig.portal.portlet.dao.jpa.PortletPreferencesImpl.portletPreferences"
        eternal="false" maxElementsInMemory="15500" overflowToDisk="false" diskPersistent="false"
        timeToIdleSeconds="900" timeToLiveSeconds="1800" memoryStoreEvictionPolicy="LRU" statistics="true" />

After making any changes to this source file, please run an "ant deploy-war" and restart the portal.

Additional References

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