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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7617) Add a flag in distributed shell to automatically PROMOTE opportunistic containers to guaranteed once they are started
Date Thu, 14 Dec 2017 11:26:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16290729#comment-16290729
] 

Weiwei Yang commented on YARN-7617:
-----------------------------------

Since the patch is only adding a flag to distributed shell, no UT added. This can be easily
verified on a cluster, I've done so on my cluster. Run following command,

{code}
/bin/yarn org.apache.hadoop.yarn.applications.distributedshell.Client -jar share/hadoop/yarn/hadoop-yarn-applications-distributedshell-3.1.0-SNAPSHOT.jar
-shell_command sleep -shell_args 100 -num_containers 20 -master_memory 200 -container_memory
200 -container_type OPPORTUNISTIC -promote_opportunistic_after_start
{code}

check container states from NM UI, see screenshot [^promote_containers.jpg].

> Add a flag in distributed shell to automatically PROMOTE opportunistic containers to
guaranteed once they are started
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-7617
>                 URL: https://issues.apache.org/jira/browse/YARN-7617
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: applications/distributed-shell
>    Affects Versions: 2.9.0
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>            Priority: Minor
>         Attachments: YARN-7617.001.patch, promote_containers.jpg
>
>
> Per discussion in YARN-7610, it would be good to add such a flag, e.g {{promote_opportunistic_after_start}}.
This is for the purpose of demonstrating how container promotion works.



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