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From "Srikanth Sampath (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Deleted] (MAPREDUCE-6726) YARN Registry based AM discovery with retry and in-flight task persistent via JHS
Date Sun, 31 Jul 2016 11:32:20 GMT

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

Srikanth Sampath updated MAPREDUCE-6726:
    Comment: was deleted

(was: SS_DEBUG - Log statements that will be retain till the implementation and stabilization
is complete.  They will either be removed or converted to log messages
SS_FIXME - These are known issues that will be addressed in subsequent patches

I will update the design doc on MAPREDUCE-6608)

> 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
> 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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