A. Sophie Blee-Goldman created KAFKA-16868:
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Summary: Post KIP-924 StreamsPartitionAssignor code cleanup
Key: KAFKA-16868
URL: https://issues.apache.org/jira/browse/KAFKA-16868
Project: Kafka
Issue Type: Improvement
Reporter: A. Sophie Blee-Goldman
Making an umbrella task for all of the tech debt and code consolidation cleanup
work that can/should be done following the implementation of [KIP-924:
customizable task assignment for
Streams|https://cwiki.apache.org/confluence/display/KAFKA/KIP-924%3A+customizable+task+assignment+for+Streams]
Most of this revolves around deduplicating code once it's no longer needed,
including classes like the ClientState, StandbyTaskAssignor and related
elements, and the old TaskAssignor interface along with its implementations.
Note that in 3.8, the first version in which KIP-924 was released, we just
added the new public config and new TaskAssignor interface but did not get rid
of the old internal config or old TaskAssignor interface. If neither config is
set in 3.8 we still default to the old HAAssignor, as a kind of opt-in feature
flag, and internally will convert the output of the new TaskAssignor into the
old style of ClientState-based assignment tracking. We intend to clean up all
of the old code and eventually support only the new TaskAssignor interface as
well as converting everything internally from the ClientState to the
TaskAssignment/KafkaStreamsAssignment style output
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