[
https://issues.apache.org/jira/browse/KAFKA-20913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18109588#comment-18109588
]
Shantanu commented on KAFKA-20913:
----------------------------------
PR: https://github.com/apache/kafka/pull/23311
> KafkaRaftClient#appendBatch reads a recycled batch buffer in its async commit
> callback, producing an incorrect appendTimestamp for committed batches
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-20913
> URL: https://issues.apache.org/jira/browse/KAFKA-20913
> Project: Kafka
> Issue Type: Bug
> Reporter: Anjaneya Gupta
> Assignee: Shantanu
> Priority: Minor
>
> On the leader, KafkaRaftClient#appendBatch registers an asynchronous commit
> callback and then releases the batch's memory buffer back to the pool in a
> finally block. The callback runs later (once the batch commits) and reads
> CompletedBatch#appendTimestamp() out of that buffer. By then the buffer may
> have been reused by a newer batch, so the callback reads the newer batch's
> timestamp and delivers the wrong appendTimestamp to the commit listener.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
