[jira] [Updated] (MAPREDUCE-6726) YARN Registry based AM discovery with retry and in-flight task persistent via JHS

["Srikanth Sampath (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6726?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Srikanth Sampath updated MAPREDUCE-6726:
----------------------------------------
    Attachment: WorkPreservingMRAppMaster.pdf

Design document that outlines some of the issues, alternatives and solutions.

> 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
>         Attachments: MAPREDUCE-6726-MAPREDUCE-6608.001.patch, WorkPreservingMRAppMaster.pdf
>
>
> 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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