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Sreekanth Ramakrishnan resolved MAPREDUCE-12. --------------------------------------------- Resolution: Fixed Fixed as part of HADOOP-5420 > Tasks execed by the task controller shouldn't inherit tasktracker groups > ------------------------------------------------------------------------ > > Key: MAPREDUCE-12 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-12 > Project: Hadoop Map/Reduce > Issue Type: Bug > Environment: hadoo 0.20 + patches, Linux Task controller > Reporter: Rajiv Chittajallu > Assignee: Sreekanth Ramakrishnan > Attachments: hadoop-5686-1.patch > > > Mapred tasks process seem to inherit the group list from the TaskTracker > daemon instead of the task owner. > tom 26633 15736 0 21:33 ? 00:00:02 /usr/bin/java ... > org.apache.hadoop.mapred.Child 127.0.0.1 51207 .. > mapred 15736 1 2 Apr08 ? 03:54:59 /usr/bin/java ... > org.apache.hadoop.mapred.TaskTracker > hadoop1:~$ id mapred > uid=50589(mapred) gid=100(users) groups=100(users),20001(hadoop) > hadoop1:~$ fgrep Groups /proc/26633/status > Groups: 100 20001 > hadoop1:~$ id tom > uid=47765(tom) gid=100(users) groups=100(users),10764(ninjas) > org.apache.hadoop.mapred.LinuxTaskController should set the user > supplimentary group list. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.