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From "Siddharth Seth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-376) Apps that have completed can appear as RUNNING on the NM UI
Date Fri, 01 Mar 2013 01:04:11 GMT

    [ https://issues.apache.org/jira/browse/YARN-376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13590126#comment-13590126

Siddharth Seth commented on YARN-376:

bq. Thanks for the review, Sidd. I originally had it update the heartbeat since the RMNode
interface already knew about the heartbeat type and it's more efficient (don't need to create
an extra copy of the app list and grab the write lock only once instead of twice).
Good point. Re-uploading the old patch again for Jenkins.
> Apps that have completed can appear as RUNNING on the NM UI
> -----------------------------------------------------------
>                 Key: YARN-376
>                 URL: https://issues.apache.org/jira/browse/YARN-376
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.0.3-alpha, 0.23.6
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Blocker
>         Attachments: YARN-376.patch, YARN-376.patch, YARN-376.patch, YARN-376.patch
> On a busy cluster we've noticed a growing number of applications appear as RUNNING on
a nodemanager web pages but the applications have long since finished.  Looking at the NM
logs, it appears the RM never told the nodemanager that the application had finished.  This
is also reflected in a jstack of the NM process, since many more log aggregation threads are
running then one would expect from the number of actively running applications.

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