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At the time of KIP-154, the AdminClient API required the replication factor be greater than or equal to one. But more recently recently, KIP-464 modified the AdminClient APIs to support creating topics by passing a replication factor of '-1' to signal the topic should be created with using the broker's default.replication.factor value. The Kafka Connect distributed worker configuration currently does not currently support setting using the broker's default replication factor to `-1`.

The Kafka Connect distributed worker configuration also does not support defining or passing other topic settings when the Connect worker creates the configuration, offset, and status topics. 

Both of these changes will allow Kafka administrators to set up sensible defaults for all topics (including the desired replication factor), and allow a Connect distributed worker configuration to use those defaults where appropriate and override the topic-specific settings for the internal topics as necessary.

As an example, consider a user that wants to use the default replication factor of the Kafka cluster but wants to override the minimum ISR for Connect's three internal topics, which could be done with:

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