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Date: Mon, 14 Dec 2009 22:19:18 +0000 (UTC)
From: "dhruba borthakur (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-6433) Add AsyncDiskService that is used in
 both hdfs and mapreduce
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     [ https://issues.apache.org/jira/browse/HADOOP-6433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

dhruba borthakur updated HADOOP-6433:
-------------------------------------

       Resolution: Fixed
    Fix Version/s: 0.22.0
     Hadoop Flags: [Reviewed]
           Status: Resolved  (was: Patch Available)

I just committed this. Thanks Zheng. Please see if you can fill up the release notes in this JIRA.

> Add AsyncDiskService that is used in both hdfs and mapreduce
> ------------------------------------------------------------
>
>                 Key: HADOOP-6433
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6433
>             Project: Hadoop Common
>          Issue Type: New Feature
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>             Fix For: 0.22.0
>
>         Attachments: HADOOP-6433.1.patch, HADOOP-6433.2.patch, HADOOP-6433.3.patch
>
>
> Both MAPREDUCE-1213 and HDFS-611 are using a class called AsyncDiskService.
> The idea is to create a thread pool per disk volume, and use that for scheduling async disk operations.

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