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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6606) Change the default HADOOP_PID_DIR to $HADOOP_HOME/pids
Date Tue, 02 Mar 2010 02:42:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12839981#action_12839981

Eli Collins commented on HADOOP-6606:

Having a configuration option for the pid dir is genuinely useful, as seen on the lists the
default frequently bites new users. 
Other programs provide similar options, eg see http://httpd.apache.org/docs/1.3/mod/core.html#pidfile.

What's the default pid directory on solaris? Googling doesn't seem to turn up one, if there's
no standard across the operating systems than defaulting to a hadoop base dir, the same raitionale
was used for the logs dir no?

> 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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