Add ShutDown hooks for MRV2 processes
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Key: MAPREDUCE-2966
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2966
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: applicationmaster, jobhistoryserver, nodemanager,
resourcemanager
Affects Versions: 0.23.0, 0.24.0
Reporter: Abhijit Suresh Shingate
Assignee: Abhijit Suresh Shingate
NodeManager registers a shudown hook in case of JVM exit.
Similar way, all other processes RM, HistoryServer, MRAppMaster should also
handle the shutdown gracefully in case of JVM exit.
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