[KAFKA-10271] Performance regression while fetching a key from a single partition

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.0, 2.6.0, 2.5.1
• Fix Version/s: 2.7.0, 2.6.1
• Component/s: streams
• Labels: KAFKA-10030 KAFKA-9445 KIP-562
• Assignee: Dima R
• Reporter: Dima R
• Created: 14/Jul/20 14:43
• Updated: 09/Oct/20 14:16
• Resolved: 08/Oct/20 17:43

Description

This is follow-up bug for KAFKA-10030 

StreamThreadStateStoreProvider excessive loop over calling internalTopologyBuilder.topicGroups(), which is synchronized, thus causing significant performance degradation to the caller, especially when store has many partitions.
 

Issue Links

• links to: GitHub Pull Request #9020