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https://issues.apache.org/jira/browse/HADOOP-12296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14985759#comment-14985759
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Allen Wittenauer commented on HADOOP-12296:
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bq. So helpful that the two architectures decided to do the exact opposite on
the return value.
Given netgroup was in Sun operating systems since before Linux even existed....
> when setnetgrent returns 0 in linux, exception should be thrown
> ---------------------------------------------------------------
>
> Key: HADOOP-12296
> URL: https://issues.apache.org/jira/browse/HADOOP-12296
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Chang Li
> Assignee: Chang Li
> Attachments: HADOOP-12296.2.patch, HADOOP-12296.3.patch,
> HADOOP-12296.3.patch, HADOOP-12296.patch
>
>
> In linux, setnetgrent returns 0 in linux when something wrong is happen, such
> as out of memory, unknown group, unavailable service, etc. So errorMessage
> should be set and exception should be thrown
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