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Date: Thu, 19 May 2016 19:23:12 +0000 (UTC)
From: "Ray Chiang (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12922299.1450256598000.239886.1463685792894@Atlassian.JIRA>
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References: <JIRA.12922299.1450256598000@Atlassian.JIRA> <JIRA.12922299.1450256598530@arcas>
Subject: [jira] [Commented] (YARN-4464) default value of
 yarn.resourcemanager.state-store.max-completed-applications should lower.
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archived-at: Thu, 19 May 2016 19:23:15 -0000


    [ https://issues.apache.org/jira/browse/YARN-4464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15291981#comment-15291981 ] 

Ray Chiang commented on YARN-4464:
----------------------------------

This patch looks like it modifies the property yarn.timeline-service.leveldb-timeline-store.start-time-write-cache-size in yarn-default.xml, not yarn.resourcemanager.state-store.max-completed-applications.  Or am I missing something?

> default value of yarn.resourcemanager.state-store.max-completed-applications should lower.
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-4464
>                 URL: https://issues.apache.org/jira/browse/YARN-4464
>             Project: Hadoop YARN
>          Issue Type: Wish
>          Components: resourcemanager
>            Reporter: KWON BYUNGCHANG
>            Assignee: Daniel Templeton
>            Priority: Blocker
>         Attachments: YARN-4464.001.patch, YARN-4464.002.patch
>
>
> my cluster has 120 nodes.
> I configured RM Restart feature.
> {code}
> yarn.resourcemanager.recovery.enabled=true
> yarn.resourcemanager.store.class=org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore
> yarn.resourcemanager.fs.state-store.uri=/system/yarn/rmstore
> {code}
> unfortunately I did not configure {{yarn.resourcemanager.state-store.max-completed-applications}}.
> so that property configured default value 10,000.
> I have restarted RM due to changing another configuartion.
> I expected that RM restart immediately.
> recovery process was very slow.  I have waited about 20min.  
> realize missing {{yarn.resourcemanager.state-store.max-completed-applications}}.
> its default value is very huge.  
> need to change lower value or document notice on [RM Restart page|http://hadoop.apache.org/docs/stable/hadoop-yarn/hadoop-yarn-site/ResourceManagerRestart.html].


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