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https://issues.apache.org/jira/browse/HADOOP-6606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12839976#action_12839976
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Allen Wittenauer commented on HADOOP-6606:
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Your Linux FHS docs bounce off of me, given I run Solaris. :)
This looks a lot like an OS specific fix that already has a tunable in place
that could be changed at install time. In fact, for Cloudera, it would seem to
be smarter to specifically make that happen at RPM install time rather than
burden the Hadoop base with a dir that will ultimately need special permissions.
> Change the default HADOOP_PID_DIR to $HADOOP_HOME/pids
> ------------------------------------------------------
>
> Key: HADOOP-6606
> URL: https://issues.apache.org/jira/browse/HADOOP-6606
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 0.20.2
> Reporter: Chad Metcalf
> Assignee: Chad Metcalf
> Attachments: HADOOP-6606.patch
>
>
> /tmp should not be used as a pid directory. There is too high a likelihood
> that pid files could be altered or deleted. A more reasonable default is
> $HADOOP_HOME/pids.
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