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Posted to mapreduce-issues@hadoop.apache.org by "Kang Xiao (JIRA)" <ji...@apache.org> on 2011/02/19 13:17:38 UTC

[jira] Updated: (MAPREDUCE-2339) optimize JobInProgress.getTaskInProgress(taskid)

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kang Xiao updated MAPREDUCE-2339:
---------------------------------

    Attachment: MAPREDUCE-2339.patch

Patch attached.

> optimize JobInProgress.getTaskInProgress(taskid)
> ------------------------------------------------
>
>                 Key: MAPREDUCE-2339
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2339
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: jobtracker
>    Affects Versions: 0.20.2, 0.21.0
>            Reporter: Kang Xiao
>         Attachments: MAPREDUCE-2339.patch
>
>
> JobInProgress.getTaskInProgress(taskid) use a linner search to get the TaskInProgress object by taskid. In fact, it can be replaced by much more efficient array index operation.

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