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From "zhihai xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3768) ArrayIndexOutOfBoundsException with empty environment variables
Date Tue, 30 Jun 2015 23:17:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14609234#comment-14609234
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zhihai xu commented on YARN-3768:
---------------------------------

thanks [~xgong] for the review! thanks [~jira.shegalov] for the good idea, review and committing
the patch.

> ArrayIndexOutOfBoundsException with empty environment variables
> ---------------------------------------------------------------
>
>                 Key: YARN-3768
>                 URL: https://issues.apache.org/jira/browse/YARN-3768
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>    Affects Versions: 2.5.0
>            Reporter: Joe Ferner
>            Assignee: zhihai xu
>             Fix For: 2.8.0
>
>         Attachments: YARN-3768.000.patch, YARN-3768.001.patch, YARN-3768.002.patch, YARN-3768.003.patch,
YARN-3768.004.patch
>
>
> Looking at line 80 of org.apache.hadoop.yarn.util.Apps an index out of range exception
occurs if an environment variable is encountered without a value.
> {code}
> java.lang.ArrayIndexOutOfBoundsException: 1
> 	at org.apache.hadoop.yarn.util.Apps.setEnvFromInputString(Apps.java:80)
> {code}
> I believe this occurs because java will not return empty strings from the split method.
Similar to this http://stackoverflow.com/questions/14602062/java-string-split-removed-empty-values



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