v.20.8Improvement

Move Parts from DiskLocal to Experimental DiskS3 in Parallel

Move parts from DiskLocal to DiskS3 in parallel. DiskS3 is an experimental feature. #13459 (Pavel Kovalenko).
Parallel Moving of Parts from DiskLocal to DiskS3: This feature enables the parallel transfer of data parts from a local disk to an S3 disk in ClickHouse.

Why it matters

The motivation behind this enhancement is to improve the efficiency and speed of moving data parts between storage disks, specifically from local storage to S3-compatible storage. By parallelizing the move operation, the system can reduce downtime and accelerate data migration processes, which is valuable for users managing large datasets and leveraging hybrid storage architectures.

How to use it

This feature is available as part of the experimental DiskS3 implementation. Users can enable and utilize it by configuring storage policies with DiskLocal and DiskS3, then performing data parts movement operations. Since it is experimental, users should test in development environments and refer to official documentation for setup details.