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Date: Fri, 13 Jun 2008 11:33:45 -0700 (PDT)
From: "Hairong Kuang (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-3487) Balancer should not allocate a thread
 per block move
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     [ https://issues.apache.org/jira/browse/HADOOP-3487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hairong Kuang updated HADOOP-3487:
----------------------------------

    Attachment: balancerThread.patch

This patch uses two thread pools, one for moving blocks and another for scheduling block moves.

> Balancer should not allocate a thread per block move
> ----------------------------------------------------
>
>                 Key: HADOOP-3487
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3487
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.17.0
>            Reporter: Hairong Kuang
>            Assignee: Hairong Kuang
>            Priority: Blocker
>             Fix For: 0.18.0
>
>         Attachments: balancerThread.patch
>
>
> It will be more efficient to use a thread pool to provision thread for each block move.

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