v.25.7Improvement
Now plain_rewritable disks are allowed as disks
Nowplain_rewritabledisks are allowed as disks for database metadata. Implement methodsmoveFileandreplaceFileinplain_rewritableto support it as a database disk. #79424 (Tuan Pham Anh).
Why it matters
This feature enablesplain_rewritable disks to be used for storing database metadata, expanding the flexibility of storage options. By adding support for moveFile and replaceFile operations on these disks, it ensures proper management and manipulation of metadata files, improving system robustness and usability.How to use it
To use this feature, configure your ClickHouse database to store metadata on aplain_rewritable disk. The system now supports the required file operations, so no additional user action is required beyond specifying the disk type for metadata storage.