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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6286) A typo in HistoryViewer makes some code useless, which causes counter limits are not reset correctly.
Date Sun, 22 Mar 2015 04:51:11 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14374793#comment-14374793
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Harsh J commented on MAPREDUCE-6286:
------------------------------------

Sure. Pushed into 2.7.0 (amended CHANGES.txt in trunk and branch-2 too).

> A typo in HistoryViewer makes some code useless, which causes counter limits are not
reset correctly.
> -----------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6286
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6286
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 2.6.0
>            Reporter: zhihai xu
>            Assignee: zhihai xu
>             Fix For: 2.7.0
>
>         Attachments: MAPREDUCE-6286.000.patch
>
>
> A typo in HistoryViewer makes some code useless and it causes counter limits are not
reset correctly.
> The typo is
> Limits.reset(conf);
> We should use jobConf instead of conf.
> With the typo, the following code becomes useless:
> {code}
>       final Path jobConfPath = new Path(jobFile.getParent(),  jobDetails[0]
>           + "_" + jobDetails[1] + "_" + jobDetails[2] + "_conf.xml");
>       final Configuration jobConf = new Configuration(conf);
>         jobConf.addResource(fs.open(jobConfPath), jobConfPath.toString());
> {code}
> The code wants to load the configuration from the Job configuration file and reset the
Limits based on the new configuration loaded from the Job configuration file. But with the
typo, the Limits are reset with the old configuration.
> So this typo is apparent.



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