[KAFKA-15908] Remove deprecated Consumer API poll(long timeout)

• Type: Sub-task
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 4.0.0
• Component/s: clients, consumer
• Labels: consumer-threading-refactor timeout
• Assignee: Andrew Schofield
• Reporter: Kirk True
• Created: 27/Nov/23 22:33
• Updated: 08/Oct/24 15:02
• Resolved: 08/Oct/24 15:02

Description

Per KIP-266, 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.

Issue Links

• is required by: KAFKA-17337 ConsumerConfig should default to CONSUMER for group.protocol
• relates to: KAFKA-15837 Throw error on use of Consumer.poll(long timeout)
• links to: GitHub Pull Request #17368