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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15253) Should update maxQueueSize when refresh call queue
Date Sat, 31 Mar 2018 02:56:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16421157#comment-16421157
] 

Konstantin Shvachko commented on HADOOP-15253:
----------------------------------------------

I just committed this to all branches up to branch-2.8. Thanks you [~Tao Jie].
If we want this in branch-2.7 we will need a separate patch. Let me know if we do.

> Should update maxQueueSize when refresh call queue
> --------------------------------------------------
>
>                 Key: HADOOP-15253
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15253
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.8.2
>            Reporter: Tao Jie
>            Assignee: Tao Jie
>            Priority: Minor
>         Attachments: HADOOP-15253.001.patch, HADOOP-15253.002.patch, HADOOP-15253.003.patch,
HADOOP-15253.004.patch
>
>
> When calling {{dfsadmin -refreshCallQueue}} to update CallQueue instance, {{maxQueueSize}}
should also be updated.
> In case of changing CallQueue instance to FairCallQueue, the length of each queue in
FairCallQueue would be 1/priorityLevels of original length of DefaultCallQueue. So it would
be helpful for us to set the length of callqueue to a proper value.



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