OutOfMemoryError Caused by Invoking Clear() on a Coherence Cache

(Doc ID 1541944.1)

Last updated on APRIL 07, 2017

Applies to:

Oracle Coherence - Version 3.5.3 and later
Information in this document applies to any platform.
***Checked for relevance on 04-Apr-2017***


Coherence nodes report an OutOfMemoryError exception after clear() has been invoked on a cache, typically a partitioned or external cache. Symptoms can vary, and the exception stack trace reported is not necessarily directly connected to the cause of the problem. 

For Example:

Another common symptom will be an increase in the amount of garbage collection (GC) activity each node is forced to perform, which will be reflected in any configured GC logging.  If the nodes have not been tuned appropriately, and the GC activity is a "stop the world" collection, then communication delays will start to reported by the nodes in the cluster.


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