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From "Jun Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3480) Recovery may get very slow with lots of services with lots of app-attempts
Date Mon, 21 Dec 2015 14:06:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-3480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15066477#comment-15066477
] 

Jun Gong commented on YARN-3480:
--------------------------------

Test cases are not related, there are other issues tracking them.

> Recovery may get very slow with lots of services with lots of app-attempts
> --------------------------------------------------------------------------
>
>                 Key: YARN-3480
>                 URL: https://issues.apache.org/jira/browse/YARN-3480
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Jun Gong
>            Assignee: Jun Gong
>         Attachments: YARN-3480.01.patch, YARN-3480.02.patch, YARN-3480.03.patch, YARN-3480.04.patch,
YARN-3480.05.patch, YARN-3480.06.patch, YARN-3480.07.patch, YARN-3480.08.patch, YARN-3480.09.patch,
YARN-3480.10.patch, YARN-3480.11.patch
>
>
> When RM HA is enabled and running containers are kept across attempts, apps are more
likely to finish successfully with more retries(attempts), so it will be better to set 'yarn.resourcemanager.am.max-attempts'
larger. However it will make RMStateStore(FileSystem/HDFS/ZK) store more attempts, and make
RM recover process much slower. It might be better to set max attempts to be stored in RMStateStore.
> BTW: When 'attemptFailuresValidityInterval'(introduced in YARN-611) is set to a small
value, retried attempts might be very large. So we need to delete some attempts stored in
RMStateStore and RMStateStore.



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