ReplicatedMergeTree tables in ClickHouse can now recover data even if some of their disks are broken, improving fault tolerance and data reliability.
Why it matters
This feature addresses the issue of data loss or read failures caused by disk failures in ReplicatedMergeTree tables. It enhances the storage engine's robustness by enabling recovery of data from remaining healthy disks, ensuring higher availability and durability for users relying on replicated data.How to use it
Users do not need to perform any explicit action to enable this feature. It is integrated into the ReplicatedMergeTree engine, which will automatically recover data from surviving disks when some disks are detected as broken.