Not sure what that hdfs error is, probably becuae you did not upgrade the CM Server. Here are some quick directions. You will need to login to the host running CM Server and the hosts running the CM agents. 1) Stop Cloudera manager services in the Cloudera Manager UI 2) Stop All the cluster services (probably don't need to stop all of them, but it is easier and faster) 3) login to the host running cloudera manger server 4) Stop cloudera manager and the DB, (db only if you are using embedded postgres) service cloudera-scm-server stop service cloudera-scm-server-db stop 5) see if the new version of CM is available to upgrade yum clean all yum clean metadata yum list available | grep -i cloudera-manager- should show the latest version of CM available for you to upgrade to. 6) to upgrade CM yum udpate -y 'cloudera-manager-*' 7) Verify the correct versions were installed rpm -qa 'cloudera-manager-*' 😎 Upgrade the CM agents by logging into each host and follow the same commands. 9) Start all the servers service cloudera-scm-server-db start service cloudera-scm-server start service cloudera-scm-agent start 10) when they have started, log back into the CM UI and start the Cloudera Managment Services and the CDH Services. You can google all these commands for better undersanding of what they are and trouble shooting. Good Luck! Tina
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