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Posted to mapreduce-issues@hadoop.apache.org by "Kang Xiao (Commented) (JIRA)" <ji...@apache.org> on 2011/12/16 11:58:30 UTC
[jira] [Commented] (MAPREDUCE-2339) optimize
JobInProgress.getTaskInProgress(taskid)
[ https://issues.apache.org/jira/browse/MAPREDUCE-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13170897#comment-13170897 ]
Kang Xiao commented on MAPREDUCE-2339:
--------------------------------------
It's still usefull for 1.0.0 or 1.1.0 version but not for trunk. Any suggesstion?
> 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, 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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