[ https://issues.apache.org/jira/browse/HDFS-4485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aaron T. Myers resolved HDFS-4485. ---------------------------------- Resolution: Fixed I've just committed this to the HDFS-347 branch. Thanks a lot for the contribution, Colin. > 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 > Attachments: HDFS-4485.001.patch, HDFS-4485.003.patch > > > 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