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Posted to jira@kafka.apache.org by "Justine Olshan (Jira)" <ji...@apache.org> on 2025/09/22 21:02:00 UTC
[jira] [Updated] (KAFKA-17941) TransactionStateManager.loadTransactionMetadata method may get stuck in an infinite loop
[ https://issues.apache.org/jira/browse/KAFKA-17941?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Justine Olshan updated KAFKA-17941:
-----------------------------------
Fix Version/s: 3.9.2
> TransactionStateManager.loadTransactionMetadata method may get stuck in an infinite loop
> ----------------------------------------------------------------------------------------
>
> Key: KAFKA-17941
> URL: https://issues.apache.org/jira/browse/KAFKA-17941
> Project: Kafka
> Issue Type: Bug
> Reporter: Vincent Jiang
> Assignee: Vincent Jiang
> Priority: Major
> Fix For: 3.9.2, 4.0.0
>
>
> When loading transaction metadata from a transaction log partition, if the partition contains a segment ending with an empty batch, "currOffset" update logic at [https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/coordinator/transaction/TransactionStateManager.scala#L482] will be skipped. Since "currOffset" is not advanced to next offset of last batch properly, TransactionStateManager.loadTransactionMetadata method will be stuck in the "while" loop at [https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/coordinator/transaction/TransactionStateManager.scala#L438.|https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/coordinator/transaction/TransactionStateManager.scala#L438,]
> After the change of https://issues.apache.org/jira/browse/KAFKA-17076, there is a higher chance for compaction process to generate segments ending with an empty batch. As a result, this issue is more likely to be hit now comparing to before KAFKA-17076 change.
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