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https://issues.apache.org/jira/browse/YARN-1879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13954943#comment-13954943
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Tsuyoshi OZAWA commented on YARN-1879:
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{quote}
I suppose this is what MR-AM does today? we cannot assume each AM does the same.
{quote}
Jian, Thank you for the point. I supposed DistributedShell's application master
in the sentence. I checked that MRAppMaster stops because it doesn't retry when
Exception occurs at server-side. Therefore, as you mentioned, we cannot assume
each AM doesn't the same. We should make them "AtMostOnce" with RetryCache-like
mechanism. I'll create a patch based on the discussion.
> Mark Idempotent/AtMostOnce annotations to ApplicationMasterProtocol
> -------------------------------------------------------------------
>
> Key: YARN-1879
> URL: https://issues.apache.org/jira/browse/YARN-1879
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Jian He
> Assignee: Tsuyoshi OZAWA
> Priority: Critical
> Attachments: YARN-1879.1.patch
>
>
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