Junping Du created MAPREDUCE-6726:
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Summary: YARN Registry based AM discovery with retry and in-flight
task persistent via JHS
Key: MAPREDUCE-6726
URL: https://issues.apache.org/jira/browse/MAPREDUCE-6726
Project: Hadoop Map/Reduce
Issue Type: Sub-task
Components: applicationmaster
Reporter: Junping Du
Assignee: Srikanth Sampath
Several tasks will be achieved in this JIRA based on the demo patch in
MAPREDUCE-6608:
1. AM discovery base on YARN register service. Could be replaced by YARN-4758
later due to scale up issue.
2. Retry logic for TaskUmbilicalProtocol RPC connection
3. In-flight task recover after AM restart via JHS
4. Configuration to control the behavior compatible with previous when not
enable this feature (by default).
All security related issues and other concerns discussed in MAPREDUCE-6608 will
be addressed in follow up JIRAs.
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