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Filter out expiration and LRU-based invalidation events

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The dynamic caching service sends invalidation notifications to all cluster members in all situations. In some cases, these invalidation events are unneeded and can become a performance drain.

Two custom JVM properties can be used to disable the sending of notifications in two situations:

• invalidation based on LRU eviction
• invalidation based on time out

WebSphere Commerce recommends that you set these custom JVM properties to TRUE:

• com.ibm.ws.cache.CacheConfig.filterLRUInvalidation
• com.ibm.ws.cache.CacheConfig.filterTimeOutInvalidation

These two new properties are available in WebSphere Application Server fix pack 6.0.2.13 and later.