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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6433) Add AsyncDiskService that is used in both hdfs and mapreduce
Date Sun, 13 Dec 2009 07:07:18 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789852#action_12789852
] 

dhruba borthakur commented on HADOOP-6433:
------------------------------------------

Isn't it the case that the AsyncDiskService has nothing to do with disks per se, but rather
a service that allows executing a set of Runnable objects in parallel asynchronously. If my
understanding is correct, is it appropriate to name it as AsyncService?

> 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
>         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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