What Debezium connector do you use and what version?

Version 3.0.6 across various connectors

What is the connector configuration?

We run an embedded engine

What behavior do you expect?

If a connector is stopped whilst a blocking snapshot is in progress, then the next time the connector saves the offset file, it should remove references to any in progress blocking snapshot.

What behavior do you see?

During a blocking snapshot, some metadata is written to the offset file:

"snapshot":"BLOCKING","snapshot_completed":false

If the connector is stopped during this process then this metadata is retained in the offset file. When the connector is restarted, it correctly skips snapshotting and resumes streaming. However, the blocking snapshot metadata is not cleared from the offset file. Successfully running another blocking snapshot still does not clear the metadata from the offset file.

Whilst this is not an issue that causes any behaviour problems, it would be good to clear up afterwards, to prevent any future issues.