Your Application Master is failing   2024-07-02 13:26:25,480 INFO mapreduce.Job: Job job_1719844718570_0005 failed with status FAILED due to: Application application_1719844718570_0005 failed 2 times due to AM, appattempt_1719844718570_0005_000 The container exited with 002, the exit code is: 1 This attempt failed. Diagnosis: [2024-07-02 13:26:24.824] Container startup abnormality. Container ID: container_1719844718570_0005_02_000001 Exit code: 1    Check the yarn application logs using  yarn logs -applicationId <Application ID>   ... View more

Try increasing the Dynamic Queue User Limit Factor to 2 or 4 and check if that helps. ... View more

You can stop balancer at any time, it's safe to stop it by pressing ctrl+c command. https://community.cloudera.com/t5/Support-Questions/When-should-i-stop-the-balancer/td-p/168115 ... View more

Hello @Kolli  Do you have a valid Kerberos ticket? Check using klist and it should display a message  like below. Ticket cache: FILE:/tmp/krb5cc_12345 Default principal: user@example.com Valid starting Expires Service principal 09/06/23 13:30:00 09/07/23 13:30:00 krbtgt/example.com@example.com renew until 09/08/23 13:30:00 ... View more

Please ensure that the namenode is up and out of safe mode. hdfs dfsadmin -safemode get ... View more

Please share a specific use case, ie. Pick a sample user job that is expected to go to a specific queue and share its placement rules screenshot ... View more

How frequently is this occurring? It is worth checking network drops or you might consider increasing the timeouts on both sides ie. Resource Manager and Zookeeper. ... View more

Please share a screenshot of your placement rules ... View more