Post-upgrade steps on CDP
After you complete the upgrade of HDF, you need to verify or modify properties for NiFi
Registry, NiFi, Ranger, Solr, and Zookeeper, and enable security if you want to use
a secure cluster. You also need to set core configuration service.
Enabling security If your previous cluster was secure or if you want to use a secure cluster, you have to enable Kerberos and auto-TLS. Setting core configuration service You need to add core configuration service to your cluster manually. The core configuration service allows you to create clusters without the HDFS service. Starting Zookeeper service You must configure the Zookeeper server hosts to start the Zookeeper service. Migrating NiFi Registry directories You must create a working directory to start the NiFi Registry service. The directory is the place where NiFi Registry stores existing buckets, configuration files, database files, and so on. Verifying Ranger configurations You need to verify Ranger configurations before you start using the Ranger service. Configuring Ranger settings You need to configure Ranger settings and execute Ranger actions. Configuring NiFi settings You need to configure NiFi settings after you start NiFi successfully. Initializing Solr You need to execute Solr actions before you start using the Solr service to ensure that Solr is initialized correctly. Configuring SOLR settings You need to configure Solr settings before you start using the Solr service. You also need to start Zookeeper service.