Upgrading data stores on Linux on IBM Z and LinuxONE

Upgrade third-party data store operators.

You must upgrade ZooKeeper before you upgrade ClickHouse.

• Cassandra
• ZooKeeper
• ClickHouse
• Elasticsearch
• Kafka
• PostgreSQL

After you upgrade the data stores, check the config.yaml file to make sure that it has the correct configurations of all the data stores.