[KAFKA-15771] ProduceRequest#partitionSizes() is not an atomic operation - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Trivial
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 3.5.2, 3.7.0, 3.6.1
Component/s: producer
Labels:
None

Description

Encountered a concurrency issue in method ProduceRequest#partitionSizes() while developing with Kafka. When both Thread 1 and Thread 2 concurrently call method ProduceRequest#partitionSizes(), Thread 2 may receive an incomplete or empty result if Thread 1 is still in the process of initializing partitionSizes. This is an incorrect state. the code to ensure that Thread 2 obtains the final state rather than an intermediate one.