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https://issues.apache.org/jira/browse/KAFKA-16192?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justine Olshan updated KAFKA-16192:
-----------------------------------
Description:
[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.
This change is implemented via MV.
was:
[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.
> 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
> Priority: Major
>
> [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.
> This change is implemented via MV.
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