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Status

Current state: Under Discussion

Discussion thread: here

JIRA: Not created yet

Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).

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Kafka and its upstream applications treat internal topics differently from non-internal topics. For example:

• Kafka handles topic creation response errors differently for internal topics
• Internal topic partitions cannot be added to a transaction
• Internal topic records cannot be deleted
• Appending to internal topics might get rejected

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Clients and upstream applications may define their own internal topics. For example, Kafka Connect defines `connect-configs`, `connect-offsets`, and `connect-statuses`. Clients are fetching the internal topics by sending the MetadataRequest (ApiKeys.METADATA).

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