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. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira