This is for MySQL connector. The configuration event.processing.failure.handling.mode property is not present in the documentation but I see it is present in the common configuration in code - https://sourcegraph.com/github.com/debezium/debezium/-/blob/debezium-core/src/main/java/io/debezium/config/CommonConnectorConfig.java?L400

It would be nice if we add it in the documentation.

Ref - https://debezium.io/documentation/reference/1.8/connectors/mysql.html