IBM 6.1.X manual Cluster Tuning, Value true, Application Server Tuning

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CLUSTER TUNING

The Base Portal Scenario is measured in a three-node horizontal cluster environment, with or without session persistence, and six-members vertical cluster environment.

In general, the same tuning that was used for the Base Portal Scenario was used for cluster. The additional settings are mentioned below:

Application Server Tuning

D Y N A C A C H E C U S T O M P R O P E R T I E S

There are several properties which can be set to reduce the number and size of Dynacache messages sent between nodes. This will improve scalability and reduce resource consumption in a clustered Portal environment. To set these properties, do the following:

1)Open and log in to the Administrative Console.

2)Click Application servers -> WebSphere_Portal -> Java and Process Management -> Process Definition -> Java Virtual Machine -> Custom properties -> New

3)Under General Properties, add the following information:

Name: com.ibm.ws.cache.CacheConfig.ignoreValueInInvalidationEvent

Value: true

Name: com.ibm.ws.cache.CacheConfig.filterTimeOutInvalidation

Value: true

Name: com.ibm.ws.cache.CacheConfig.filterLRUInvalidation

Value: true

Z / O S D Y N A C A C H E C U S T O M P R O P E R T Y

A custom property has been defined: com.ibm.ws.cache.CacheConfig. propogateInvalidationsNotShared, which when set to true leads to invalidations being sent for cache entry insertions and updates for a NOT_SHARED cache instance. This property should be removed on z/OS configurations as it has a major impact on performance.

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W E BS P HE R E P O R T AL V 6 . 1 T U N I N G G U I D E