Alan Field created ISPN-3386:
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Summary: Cancel Map/Reduce tasks before they cause OOM errors
Key: ISPN-3386
URL:
https://issues.jboss.org/browse/ISPN-3386
Project: Infinispan
Issue Type: Enhancement
Components: Distributed Execution and Map/Reduce
Affects Versions: 5.3.0.Final
Reporter: Alan Field
Assignee: Mircea Markus
Currently, a MapReduceTask that generates an OutOfMemory error will break a clustered
cache. The node where the OOM occurs will generate SuspectExceptions on the other nodes in
the cluster.
In order to avoid this situation, Infinispan should monitor free memory and cancel the
MapReduceTask if free memory is below a user definable threshold. [~pruivo] has also
suggested allowing the API user to set the priority of tasks, so that the Map Reduce
Manager can cancel lower priority tasks first. This functional could also be included with
ISPN-2991.
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