Jason Lowe created MAPREDUCE-4797:
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Summary: LocalContainerAllocator can loop forever trying to
contact the RM
Key: MAPREDUCE-4797
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4797
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: applicationmaster
Affects Versions: 2.0.1-alpha, 0.23.3
Reporter: Jason Lowe
If LocalContainerAllocator has trouble communicating with the RM it can end up
retrying forever if the nature of the error is not a YarnException.
This can be particulary bad if the connection went down because the cluster was
reset such that the RM and NM have lost track of the process and therefore
nothing else will eventually kill the process. In this scenario, the looping
AM continues to pelt the RM with connection requests every second using a stale
token, and the RM logs the SASL exceptions over and over.
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