question Re: Custom SuperUserGroup - Implications for other Hadoop Services? in Archives of Support Questions (Read Only)

Custom SuperUserGroup - Implications for other Hadoop Services?

wfloyd — Fri, 20 Nov 2015 04:57:55 GMT

If we set a custom value for dfs.permissions.superusergroup do we need to add any other Hadoop services to that group in order for the cluster to function normally?

For example, if we set "dfs.permissions.superusergroup=blueManGroup" would we need to add service accounts such as hive, hdfs, oozie, etc. to the "blueManGroup"?

Couldn't find the answer in the Hadoop documentation: https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsPermissionsGuide.html#The_Super-User

Re: Custom SuperUserGroup - Implications for other Hadoop Services?

nsabharwal — Fri, 20 Nov 2015 18:45:57 GMT

@Wes Floyd This article explains it further. Link

My answer is No. Extract from the above test "I also did not screw up the fact that hdfs is my true superuser as shown by my "old" HDFS home directory process."

Re: Custom SuperUserGroup - Implications for other Hadoop Services?

aervits — Wed, 03 Feb 2016 05:08:42 GMT

@Wes Floyd are you still having issues? Can you accept the best answer or provide your own solution?