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From "Chris Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-10285) Allow CallQueue impls to be swapped at runtime (part 2: admin interface) Depends on: subtask2
Date Tue, 28 Jan 2014 23:03:33 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-10285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Li updated HADOOP-10285:
------------------------------

    Attachment: subtask3_admin_interface.patch

Users can swap the queue by running

hadoop dfsadmin -refreshCallQueue

The code touches a lot of places, but is effectively a mirror of what refreshServiceAcl does
to accomplish the same thing.

> Allow CallQueue impls to be swapped at runtime (part 2: admin interface) Depends on:
subtask2
> ---------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-10285
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10285
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Chris Li
>         Attachments: subtask3_admin_interface.patch
>
>
> We wish to swap the active call queue during runtime in order to do performance tuning
without restarting the namenode.
> This patch adds the ability to refresh the call queue on the namenode, through dfsadmin
-refreshCallQueue



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