Justine Olshan created KAFKA-16192:
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Summary: Introduce usage of flexible records to coordinators
Key: KAFKA-16192
URL: https://issues.apache.org/jira/browse/KAFKA-16192
Project: Kafka
Issue Type: Task
Reporter: Justine Olshan
Assignee: Justine Olshan
[KIP-915|
https://cwiki.apache.org/confluence/display/KAFKA/KIP-915%3A+Txn+and+Group+Coordinator+Downgrade+Foundation]
introduced flexible versions to the records used for the group and transaction
coordinators.
However, the KIP did not update the record version used.
For
[KIP-890|https://cwiki.apache.org/confluence/display/KAFKA/KIP-890%3A+Transactions+Server-Side+Defense]
we intend to use flexible fields in the transaction state records. This
requires a safe way to upgrade from non-flexible version records to flexible
version records.
Typically this is done as a message format bump. There may be an option to make
this change using MV since if the readers of the records are internal and not
external consumers.
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