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From "Mahadev konar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5149) HistoryViewer throws IndexOutOfBoundsException when there are files or directories not confrming to log file name convention
Date Thu, 05 Feb 2009 02:30:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12670607#action_12670607
] 

Mahadev konar commented on HADOOP-5149:
---------------------------------------

+1 the patch looks good. .. 

> HistoryViewer throws IndexOutOfBoundsException when there are files or directories not
confrming to log file name convention
> ----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5149
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5149
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.21.0
>            Reporter: Hong Tang
>            Assignee: Hong Tang
>            Priority: Minor
>             Fix For: 0.21.0
>
>         Attachments: HADOOP-5149.trunk.patch
>
>
> When running history viewer in local mode (specifying file:///<path/to/hodlogs>
as path to logs), it throws IndexOutOfBoundsException due to the following code:
> {code}
>       String[] jobDetails = 
>           JobInfo.decodeJobHistoryFileName(jobFiles[0].getName()).split("_");
>       trackerHostName = jobDetails[0];
>       trackerStartTime = jobDetails[1];
> {code}
> The reason is because there are some directories under the log directories that do not
conform to the log file naming convention, and the length of the jobDetails array is 1.
> History viewer should be more defensive and ignore (possibly with warning) files or directories
that it does not recognize.

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