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https://issues.apache.org/jira/browse/KAFKA-15908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai resolved KAFKA-15908.
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Resolution: Fixed
> Remove deprecated Consumer API poll(long timeout)
> -------------------------------------------------
>
> Key: KAFKA-15908
> URL: https://issues.apache.org/jira/browse/KAFKA-15908
> Project: Kafka
> Issue Type: Sub-task
> Components: clients, consumer
> Reporter: Kirk True
> Assignee: Andrew Schofield
> Priority: Critical
> Labels: consumer-threading-refactor, timeout
> Fix For: 4.0.0
>
>
> Per
> [KIP-266|https://cwiki.apache.org/confluence/display/KAFKA/KIP-266%3A+Fix+consumer+indefinite+blocking+behavior],
> the {{Consumer.poll(long timeout)}} method was deprecated back in 2.0.0.
> In 3.7, there are two implementations, each with different behavior:
> * The {{LegacyKafkaConsumer}} implementation will continue to work but will
> log a warning about its removal
> * The {{AsyncKafkaConsumer}} implementation will throw an error.
> In 4.0, the `poll` method that takes a single `long` timeout will be removed
> altogether.
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