Hello @mahfooz , thank you for raising your question about Hive's ACID support on CDH5.16. Based on [1] and, no Hive currently does not support ACID transactions.   Cloudera recommends using the Parquet file format, which works across many tools. Kind regards: Ferenc   [1] https://docs.cloudera.com/documentation/enterprise/5-16-x/topics/hive_ingesting_and_querying_data.html#hive_transaction_support   ... View more

Hello @BVNP , thank you for raising the question about how to check if CM is running on a host.   Do I understand correctly that you can ssh into the host where CM is deployed, please? You can use for example the following commands to verify if CM is up and running: - "cat /var/run/ cloudera-scm-server.pid" and then use the ps command to see if the process with the PID is running - CURL the CM Web UI with "curl -k  https://<cm-host>:7183/cmf/login". If TLS/SSL is not enabled for CM,  you can use  "curl -k  http://<cm-host>:7181/cmf/login". This should return the HTML for the CM login page. - tail the CM Server log " tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log"   Please let us know if you need further troubleshooting tips.   Thank you: Ferenc     ... View more

Based on the Cloudera documentation [1] you need parcels for rolling upgrades. Rolling upgrade means less downtime/disruption in your cluster caused by the upgrade process.   You can migrate package installation to parcel based installation following the instructions under [2].   For further information about upgrading your CDH, please follow instructions under [3].   [1] https://docs.cloudera.com/documentation/enterprise/latest/topics/cm_ig_managing_software.html [2] https://docs.cloudera.com/documentation/enterprise/latest/topics/cm_ig_migrating_packages_to_parcels.html [3] https://docs.cloudera.com/documentation/enterprise/upgrade/topics/ug_cdh_upgrade.html ... View more