Introduces support for using multiple ZooKeeper clusters simultaneously in ClickHouse.
Why it matters
This feature allows ClickHouse to connect and coordinate with multiple ZooKeeper clusters, enhancing flexibility and reliability for distributed coordination in complex deployment scenarios.How to use it
Configure multiple ZooKeeper clusters in the ClickHouse configuration file by specifying their respective connection details under different cluster names. The system will then be able to interact with all configured ZooKeeper clusters as needed.