[KAFKA-17724] Clients - resolve race condition for SubscriptionState in share group consumer

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 4.0.0
• Component/s: clients, consumer
• Labels: kip-848-client-support
• Assignee: Andrew Schofield
• Reporter: Andrew Schofield
• Created: 08/Oct/24 13:09
• Updated: 17/Oct/24 15:41
• Resolved: 17/Oct/24 10:29

Description

The SubscriptionState object is not thread-safe. Currently, there are a handful of accesses in the application thread in ShareConsumerImpl which ought to be moved into the background thread, thus eliminating the possibility of race conditions.

Issue Links

• links to: GitHub Pull Request #17418