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https://issues.apache.org/jira/browse/KAFKA-15282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lianet Magrans resolved KAFKA-15282.
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Resolution: Won't Fix
Closing as won't do as client-side assignors are not in scope for now (Kafka
Streams going with its own protocol implementation with KIP-1071). We can
reopen if ever needed.
> Implement client support for KIP-848 client-side assignors
> ----------------------------------------------------------
>
> Key: KAFKA-15282
> URL: https://issues.apache.org/jira/browse/KAFKA-15282
> Project: Kafka
> Issue Type: New Feature
> Components: clients, consumer
> Reporter: Kirk True
> Priority: Major
> Labels: kip-848-client-support
>
> The client-side assignor provides the logic for the partition assignments
> instead of on the server. Client-side assignment is the main approach used by
> the “old protocol” for divvying up partitions. While the “new protocol”
> favors server-side assignors, the client-side assignor will continue to be
> used for backward compatibility, including KSQL, Connect, etc.
> Note: I _*think*_ that the client-side assignor logic and the reconciliation
> logic can remain separate from each other. We should strive to keep the two
> pieces unencumbered, unless it’s unavoidable.
> This task includes:
> * Validate the client’s configuration for assignor selection
> * Integrate with the new {{PartitionAssignor}} interface to invoke the logic
> from the user-provided assignor implementation
> * Implement the necessary logic around the request/response from the
> {{ConsumerGroupPrepareAssignment}} RPC call using the information from the
> {{PartitionAssignor}} above
> * Implement the necessary logic around the request/response from the
> {{ConsumerGroupInstallAssignment}} RPC call, again using the information
> calculated by the {{PartitionAssignor}}
> This task is part of the work to implement support for the new KIP-848
> consumer group protocol.
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