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https://issues.apache.org/jira/browse/KAFKA-19290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Schofield resolved KAFKA-19290.
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Fix Version/s: 4.1.0
Resolution: Fixed
> Exploit mapKey optimisation in protocol requests and responses
> --------------------------------------------------------------
>
> Key: KAFKA-19290
> URL: https://issues.apache.org/jira/browse/KAFKA-19290
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Andrew Schofield
> Assignee: PoAn Yang
> Priority: Minor
> Fix For: 4.1.0
>
>
> The mapKey optimisation can be used in some KIP-932 RPC schemas to improve
> efficiency of some key-based accesses.
> For ShareFetch, ShareAcknowledge, ShareGroupHeartbeat and ShareGroupDescribe,
> the v0 RPCs are already released and cannot be retrospectively optimised. For
> others, such as AlterShareGroupOffsetsResponse, the optimisation can be
> applied provided it is done before AK 4.1 releases.
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