Todd Lipcon created HDFS-4485:
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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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