Thanks for your quick response. I did the quick test after putting the client side setting, but it still doesn't work. I still saw MR job failed due to No Route to Host from slave 1 to slave 2 on port not defined within the set range. ... View more

Could you check if this JIRA is fixed by Cloudera? https://issues.apache.org/jira/browse/MAPREDUCE-6338 ... View more

Thanks for replying.  I think that I use the correct setting since this should be on the server side.   MapReduce Client Advanced Configuration Snippet (Safety Valve) for mapred-site.xml Gateway Default Group   For advanced use only, a string to be inserted into the client configuration for mapred-site.xml.   YARN Service MapReduce Advanced Configuration Snippet (Safety Valve) YARN (MR2 Included) (Service-Wide)   For advanced use only, a string to be inserted into mapred-site.xml. Applies to configurations of all roles in this service except client configuration.   I double-checked the materialized configuration file on the disk and it contains the range setting. /run/cloudera-scm-agent/process/1353-yarn-RESOURCEMANAGER/mapred-site.xml (with latest time stamp).     ... View more

I made the following in YARN/MR setting, but it doesn't work. YARN Service MapReduce Advanced Configuration Snippet (Safety Valve) <property> <name>yarn.app.mapreduce.am.job.client.port-range</name> <value>44000-50000</value> <description>Restrict the range for firewall.</description> </property> For advanced use only, a string to be inserted into mapred-site.xml. Applies to configurations of all roles in this service except client configuration. ... View more

Did the change work for you? ... View more

Here is the description for the LB: Address of the load balancer used if Oozie HA is enabled. Should be specified in host:port format.   Could we improve it to "FQHN:port" and ask technical writer to update it? Kerberos only treats FQHN well. ... View more

Web UI "Load Balancer" gives me HTTP Status 403 - GSSException: Failure unspecified at GSS-API level - Checksum failed. However, both individual OOzie Web UIs return fine. ... View more