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https://issues.apache.org/jira/browse/KAFKA-15284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kirk True updated KAFKA-15284:
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Summary: Implement GroupProtocolResolver to dynamically determine consumer
group protocol (was: Implement GroupProtocolResolver to determine consumer
group protocol)
> Implement GroupProtocolResolver to dynamically determine consumer group
> protocol
> --------------------------------------------------------------------------------
>
> Key: KAFKA-15284
> URL: https://issues.apache.org/jira/browse/KAFKA-15284
> Project: Kafka
> Issue Type: New Feature
> Components: clients, consumer
> Reporter: Kirk True
> Priority: Critical
> Labels: kip-848-client-support
> Fix For: 4.0.0
>
>
> At client initialization, we need to determine which of the
> {{ConsumerDelegate}} implementations to use:
> # {{LegacyKafkaConsumerDelegate}}
> # {{AsyncKafkaConsumerDelegate}}
> There are conditions defined by KIP-848 that determine client eligibility to
> use the new protocol. This will be modeled by the
> {{{}GroupProtocolResolver{}}}.
> Known tasks:
> * Determine at what point in the {{Consumer}} initialization the network
> communication should happen
> * Determine what RPCs to invoke in order to determine eligibility (API
> versions, IBP version, etc.)
> * Implement the network client lifecycle (startup, communication, shutdown,
> etc.)
> * Determine the fallback path in case the client is not eligible to use the
> protocol
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