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From "Sunil Govindan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-8464) Async scheduling thread could be interrupted when there are no NodeManagers in cluster
Date Tue, 26 Jun 2018 23:14:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-8464?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sunil Govindan updated YARN-8464:
---------------------------------
    Attachment: YARN-8464.002.patch

> Async scheduling thread could be interrupted when there are no NodeManagers in cluster
> --------------------------------------------------------------------------------------
>
>                 Key: YARN-8464
>                 URL: https://issues.apache.org/jira/browse/YARN-8464
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler
>            Reporter: Charan Hebri
>            Assignee: Sunil Govindan
>            Priority: Critical
>         Attachments: YARN-8464.001.patch, YARN-8464.002.patch
>
>
> Test scenario:
> 1. Make either yarn.nodemanager.log-dirs/yarn.nodemanager.local-dirs read-only
> 2. Restart NMs via Ambari, none of them show up in the RM UI as expected
> 3. Revert back the read-only dirs and restart NMs
> 4. Include a non-existent dir in either yarn.nodemanager.log-dirs/yarn.nodemanager.local-dirs
(1 good existing dir + 1 non-existing dir)
> 5. Restart NMs via Ambari, all NMs show as RUNNING with a Health Report message as expected
> 6. Submit a MapReduce sleep job, job goes into ACCEPTED state
> 7. Job stays in ACCEPTED state forever even though all NMs are running and have available
memory
>  
> Credits to [~charanh] who found this issue.



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