@GangWar  Thank you for your reply. I confirmed I can manually upgrade the agent in each host , which is also written in installation manual as option 2. Upgrade the Agents using the Command Line. Just a little bit I have a curiosity of the reason not working with CM distributed method, but anyway I'm going forward steps.   Best regards, Tak568 ... View more

@atl-techdev Cloudera don’t support Oracle Database for Nifi Registry officially. Please check the matrix here:  https://docs.cloudera.com/cfm/2.0.4/support-matrix/topics/cfm-supported-databases.html ... View more

@Ananya_Misra  Namenode restart failed with below exception :   'org.apache.hadoop.hdfs.server.common.InconsistentFSStateException: Directory /hadoop/hdfs/namenode is in an inconsistent state: previous fs state should not exist during upgrade. Finalize or rollback first.' This issue occurs because, during an upgrade, NameNode creates a different directory layout under NameNode directory, if this is stopped before Finalize upgrade, NameNode directory will go to an inconsistent state. NameNode will not be able to pick the directory with a different layout.   To resolve this issue start Namenode manually through command line with the -rollingUpgrade started option and proceed with the upgrade:   # su -l hdfs -c '/usr/hdp/current/hadoop-client/sbin/hadoop-daemon.sh --config /usr/hdp/current/hadoop-client/conf start namenode -rollingUpgrade started ... View more

'abort_procedure' is deprecated and not available. Seems now it needs to use 'hbck2 --bypass' in order to abort a procedure. We did not applied this because fortunately, an upgrade to CDH 6.3.3 for one cluster and a yarn patch on the other one, made a HBase restart necessary. That removed the peers on both clusters.   ... View more