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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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