ClickHouse now uses cluster state data to check and prevent concurrent backup and restore operations.
Why it matters
This feature addresses the risk of conflicting backup and restore operations running at the same time across a cluster, which can cause data corruption or inconsistency. By leveraging cluster state data, ClickHouse ensures that only one backup or restore operation can proceed concurrently, improving data safety and operational reliability.How to use it
Users do not need to manually enable this feature. When executing backup or restore operations in a clustered environment, ClickHouse automatically checks the cluster state to detect and block concurrent operations, ensuring safe execution.