The steps described in this topic are only applicable if you are running one or more CDH services with non-default users. This means if you have modified the default value for the
System User property for any service in Cloudera Manager, you must only perform the command (as described below) corresponding to that service, to be able to
successfully run jobs with the non-default user.
| MapReduce |
Configure the mapred.system.dir directory to be owned by the mapred user.
sudo -u hdfs hadoop fs -chown mapred:hadoop ${mapred.system.dir}
By default, mapred.system.dir is /tmp/mapred/system. |
| HBase |
Give the hbase user ownership of the HBase root directory:
sudo -u hdfs hadoop fs -chown -R hbase ${hbase.rootdir}
By default, hbase.rootdir is /hbase. |
| Hive |
Give the hive user ownership of the /user/hive directory.
sudo -u hdfs hadoop fs -chown hive /user/hive |
| YARN |
For every NodeManager host, for each path in yarn.nodemanager.local-dirs, run:
rm -rf ${yarn.nodemanager.local-dirs}/usercache/*
This removes the /usercache directory that contains intermediate data stored for previous jobs. |