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From "Chris Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-10302) Allow CallQueue impls to be swapped at runtime (part 1: internals)
Date Tue, 28 Jan 2014 22:31:38 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-10302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Li updated HADOOP-10302:
------------------------------

    Attachment: subtask2_runtime_swap_internal.patch

> Allow CallQueue impls to be swapped at runtime (part 1: internals)
> ------------------------------------------------------------------
>
>                 Key: HADOOP-10302
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10302
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Chris Li
>         Attachments: subtask2_runtime_swap_internal.patch
>
>
> We wish to swap the active call queue during runtime in order to do performance tuning
without restarting the namenode.
> This patch adds only the internals necessary to swap. Part 2 will add a user interface
so that it can be used.



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