v.21.9Improvement

Enable Local Disk Config Reloading

Enable reloading of local disk config. #19526 (taiyang-li).
Enable reloading of local disk configuration in ClickHouse without restarting the server.

Why it matters

This feature allows users to update and apply changes to the local disk configuration dynamically, improving operational flexibility and reducing downtime caused by server restarts when modifying disk settings.

How to use it

Users can modify the local disk configuration file and trigger the reload process to apply the changes immediately. The exact method to reload the configuration can be done via an appropriate ClickHouse command or system signal as documented in the release notes or official documentation.