Remove sleep from MRAppMaster during app-finish.
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Key: MAPREDUCE-3629
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3629
Project: Hadoop Map/Reduce
Issue Type: Task
Components: mrv2
Affects Versions: 0.23.0
Reporter: Amol Kekre
Fix For: 0.23.1
MRAppMaster waits for 5 secs during app-finish, this was needed before we had
client-side redirection. This affects the app execution in that, AppMaster will
killed by the NM once NM gets
confirmation from RM.
AppMaster should go away immediately. Also, the done call to RM from AM should
be the last thing AM ever does.
Otherwise, today, JobHistory writing gets interrupted if AM gets killed by the
NM.
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