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Date: Fri, 17 Oct 2008 03:34:46 -0700 (PDT)
From: "Steve Loughran (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-4429) Misconfigured UNIX Groups Break
 Hadoop
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    [ https://issues.apache.org/jira/browse/HADOOP-4429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12640486#action_12640486 ] 

Steve Loughran commented on HADOOP-4429:
----------------------------------------

One problem with doing diagnostics for configuration failures and errors in the underlying OS/JRE is that they are hard to reliably translate. If you look for strings, your code breaks on every OS/JRE update. If you take a guess, you end up with those windows programs that assume that all failures are due to being out of memory, because that was a common fault. but if it isnt the fault, it is even more misleading.

What we can do is what you have done: place the stack trace on a bugrep where it is searchable. The next time someone gets this error and searches for it. they will find this page. So we should add the instructions on what to do to make the error message go away.

> Misconfigured UNIX Groups Break Hadoop
> --------------------------------------
>
>                 Key: HADOOP-4429
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4429
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>         Environment: UNIX, Linux
>            Reporter: Alex Loddengaard
>            Priority: Minor
>
> If a UNIX user has misconfigured groups, either locally or through LDAP, then Hadoop will not be able to start.

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