Now is used version 22.214.171.124 and want to update to 21.3.
- Update the Clickhouse to 21.3 version
- Move clickhouse initialization from pmm2-images playbook to update playbook
- Change log level for Clickhouse from debug to information.
- Use the official Clickhouse RPM package instead of our version
How to test
It's a big change. We need to test it carefully. Query Analytics feature was impacted.
1. THE MOST IMPORTANT. We need to test the update feature and make sure that data in Query Analytics that was created before the update remained the same after the update. It'll be good to check it with MongoDB/PostgresSQL.
2. We need to check that the Query Analytics feature works fine.
3. Clickhouse version should be 21.3.
Even after the second update to the same version.