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https://issues.apache.org/jira/browse/HADOOP-8460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287001#comment-13287001
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Aaron T. Myers commented on HADOOP-8460:
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Tiny nit:
{quote}
+# NOTE: these should be set to a directory that general users do not have write
+# permission.
{quote}
I think you should invert the direction of this sentence, similarly to the
other warning, i.e. "these should be set to a directory that can only be
written to by..."
+1 otherwise
> Document proper setting of HADOOP_PID_DIR and HADOOP_SECURE_DN_PID_DIR
> ----------------------------------------------------------------------
>
> Key: HADOOP-8460
> URL: https://issues.apache.org/jira/browse/HADOOP-8460
> Project: Hadoop Common
> Issue Type: Bug
> Components: documentation
> Affects Versions: 1.0.3, 2.0.0-alpha
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Attachments: HADOOP-8460-branch-1.txt, HADOOP-8460-trunk.txt
>
>
> We should document that in a properly setup cluster HADOOP_PID_DIR and
> HADOOP_SECURE_DN_PID_DIR should not point to /tmp, but should point to a
> directory that normal users do not have access to.
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