tony tang created KAFKA-20726:
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Summary: Don't reuse the BufferSupplier in kraft state machine
Key: KAFKA-20726
URL: https://issues.apache.org/jira/browse/KAFKA-20726
Project: Kafka
Issue Type: Bug
Components: kraft
Reporter: tony tang
Assignee: tony tang
{{KRaftControlRecordStateMachine}} uses {{DefaultSupplier}} for its entire
lifetime. {{DefaultSupplier}} caches one buffer per distinct capacity and never
evicts, causing unbounded memory growth as {{__cluster_metadata}} batches vary
in size.
We want to fix by not reusing the BufferSupplier in kraft state machine
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