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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5617) AMs only intended to run one attempt can be run more than once
Date Tue, 24 Jan 2017 23:27:26 GMT

    [ https://issues.apache.org/jira/browse/YARN-5617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15836835#comment-15836835
] 

Jason Lowe commented on YARN-5617:
----------------------------------

It would be good to get some feedback on this proposal.  Also pinging [~jianhe] and [~vinodkv]
to whom I briefly mentioned this offline.

> AMs only intended to run one attempt can be run more than once
> --------------------------------------------------------------
>
>                 Key: YARN-5617
>                 URL: https://issues.apache.org/jira/browse/YARN-5617
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.5.0
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>         Attachments: YARN-5617.001.patch, YARN-5617.002.patch
>
>
> There are times when a user only wants to run an application with one attempt.  Examples
would be cases where the second AM attempt is not prepared to handle recovery or will accidentally
corrupt state (e.g.: by re-executing something from scratch that should not be).  Prior to
YARN-614 setting the max attempts to 1 would guarantee the app ran at most one attempt, but
now it can run more than one attempt if the attempts fail due to a fault not attributed to
the application.



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