The distributed cache cleanup thread has no monitoring to check to see if it
has dies for some reason
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Key: MAPREDUCE-2495
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2495
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: distributed-cache
Affects Versions: 0.21.0
Reporter: Robert Joseph Evans
Assignee: Robert Joseph Evans
Priority: Minor
The cleanup thread in the distributed cache handles IOExceptions and the like
correctly, but just to be a bit more defensive it would be good to monitor the
thread, and check that it is still alive regularly, so that the distributed
cache does not fill up the entire disk on the node.
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