[KAFKA-15833] Restrict Consumer API to be used from one thread

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.7.0
• Component/s: clients, consumer
• Labels: consumer-threading-refactor kip-848-client-support kip-848-preview
• Assignee: Lucas Brutschy
• Reporter: Lucas Brutschy
• Created: 15/Nov/23 15:01
• Updated: 19/Feb/24 10:05
• Resolved: 20/Nov/23 14:16

Description

The legacy consumer restricts the API to be used from one thread only. This is not enforced in the new consumer. To avoid inconsistencies in the behavior, we should enforce the same restriction in the new consumer.

Issue Links

• links to: GitHub Pull Request #14779