Sunday, 11 August 2013

Understanding HTTP plug-in failover in a clustered environment

Problem(Abstract)

After setting up the HTTP plug-in for load balancing in a clustered IBM® WebSphere® environment, the HTTP plug-in is not performing failover in a timely manner or at all when a cluster member becomes unavailable.

Cause

In most cases, the preceding behavior is observed because of a misunderstanding of how HTTP plug-in failover works or might be due to an improper configuration. Also, the type of Web server (multi-threaded versus single threaded) being used can affect this behaviour.

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