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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4485) HDFS-347: DN should chmod socket path a+w
Date Fri, 08 Feb 2013 21:45:12 GMT
Todd Lipcon created HDFS-4485:
---------------------------------

             Summary: HDFS-347: DN should chmod socket path a+w
                 Key: HDFS-4485
                 URL: https://issues.apache.org/jira/browse/HDFS-4485
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: datanode
            Reporter: Todd Lipcon
            Assignee: Colin Patrick McCabe
            Priority: Critical


In cluster-testing HDFS-347, we found that in clusters where the MR job doesn't run as the
same user as HDFS, clients wouldn't use short circuit read because of a 'permission denied'
error connecting to the socket. It turns out that, in order to connect to a socket, clients
need write permissions on the socket file.

The DN should set these permissions automatically after it creates the socket.

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