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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1618) ZKRMStateStore fails to handle updates to znodes not yet created
Date Tue, 21 Jan 2014 06:25:19 GMT

    [ https://issues.apache.org/jira/browse/YARN-1618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13877260#comment-13877260
] 

Bikas Saha commented on YARN-1618:
----------------------------------

That is not the case. While the app is in NEW state YARNClient is polling the app for status
== ACCEPTED because until then app is not submitted. Thus the user does not see submitApplication()
succeed. When the app transitions NEW->FAILED, then YARNClient notifies the user that submitApplication()
has  failed with whatever diagnostics the RM provides about the failure reason.

> ZKRMStateStore fails to handle updates to znodes not yet created
> ----------------------------------------------------------------
>
>                 Key: YARN-1618
>                 URL: https://issues.apache.org/jira/browse/YARN-1618
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.2.0
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>            Priority: Critical
>         Attachments: yarn-1618-1.patch
>
>
> ZKRMStateStore fails to handle updates to znodes that don't exist. For instance, this
can happen when an app transitions from NEW to FINAL_SAVING. In these cases, the store should
create the missing znode and handle the update.



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