v.21.1Improvements

Export Current Max DDL Entry Executed by DDLWorker via Server Metric

Export current max ddl entry executed by DDLWorker via server metric. It's useful to check if DDLWorker hangs somewhere. #17464 (Amos Bird).
Added a new server metric that exports the current maximum DDL entry executed by DDLWorker.

Why it matters

This feature helps users monitor the progress of DDLWorker operations by exposing the latest executed DDL entry. It is particularly useful to detect if DDLWorker is hanging or stalled during schema changes.

How to use it

Users can monitor the new metric directly from the server metrics output to track the latest DDL entry processed by DDLWorker. No additional configuration or enabling is required.