Vinod Kumar Vavilapalli created YARN-1489:
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Summary: [Umbrella] Work-preserving ApplicationMaster restart
Key: YARN-1489
URL: https://issues.apache.org/jira/browse/YARN-1489
Project: Hadoop YARN
Issue Type: Bug
Reporter: Vinod Kumar Vavilapalli
Assignee: Vinod Kumar Vavilapalli
Today if AMs go down,
- RM kills all the containers of that ApplicationAttempt
- New ApplicationAttempt doesn't know where the previous containers are running
- Old running containers don't know where the new AM is running.
We need to fix this to enable work-preserving AM restart. The later two
potentially can be done at the app level, but it is good to have a common
solution for all apps where-ever possible.
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