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https://issues.apache.org/jira/browse/HDFS-1560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-1560:
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Release Note: The permissions on datanode data directories (configured by
dfs.datanode.data.dir.perm) now default to 0700. Upon startup, the datanode
will automatically change the permissions to match the configured value.
> dfs.data.dir permissions should default to 700
> ----------------------------------------------
>
> Key: HDFS-1560
> URL: https://issues.apache.org/jira/browse/HDFS-1560
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 0.22.0, 0.23.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Fix For: 0.22.0, 0.23.0
>
> Attachments: hdfs-1560.txt
>
>
> Currently, dfs.data.dir defaults to 755 permissions, which isn't necessary
> for any reason, and is a security issue if not changed on a secured cluster.
> We should default to 700
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