Hi -   What version of Cloudera Manager are you running? Cloudera Manager 5.0, unfortunately, had a bug that prevented the YARN Job History Server from picking up changes to the configured value for the YARN remote application log directory. This was fixed in CM 5.1.   If you are running CM 5.1+, the problem could have to do with the ownership or permissions of the remote application log directory (the HDFS directory where the logs are stored). By default, this is "/tmp/logs", but it can be configured to a different value in CM (YARN > Configuration > search for "remote app log dir").   This HDFS directory (and subdirectories) needs to be readable by group hadoop. Please check the ownership/permissions using "hdfs dfs -ls -R /tmp" from the command line (replacing "/tmp" with the value of YARN's remote app log dir, if it has been set to a different value). The group ownership should be "hadoop," and the permissions should allow group read access. If this is not the case, you can use "hdfs dfs -chown -R mapred:hadoop to set the group ownership recursively.   Regards, Mark ... View more