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https://issues.apache.org/jira/browse/HADOOP-6566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844158#action_12844158
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Konstantin Boudnik commented on HADOOP-6566:
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I still don't see my comment above addressed in any way. This new check
implicitly relies on a certain environment settings and will fail if they
aren't set properly.
This requirement either:
- has to be documented
- a special environment setting routing in MiniDFSCluster needs to be
implemented
> Hadoop daemons should not start up if the ownership/permissions on the
> directories used at runtime are misconfigured
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-6566
> URL: https://issues.apache.org/jira/browse/HADOOP-6566
> Project: Hadoop Common
> Issue Type: New Feature
> Components: security
> Affects Versions: 0.22.0
> Reporter: Devaraj Das
> Assignee: Arun C Murthy
> Fix For: 0.22.0
>
> Attachments: hadoop-6566-trunk-v1.patch, hadoop-6566-trunk-v2.patch,
> HADOOP-6566_yhadoop20.patch, HADOOP-6566_yhadoop20.patch,
> HADOOP-6566_yhadoop20.patch, HADOOP-6566_yhadoop20.patch
>
>
> The Hadoop daemons (like datanode, namenode) should refuse to start up if the
> ownership/permissions on directories they use at runtime are misconfigured or
> they are not as expected. For example, the local directory where the
> filesystem image is stored should be owned by the user running the namenode
> process and should be only readable by that user. We can provide this feature
> in common and HDFS and MapReduce can use the same.
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