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https://issues.apache.org/jira/browse/KAFKA-17713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kevin Wu updated KAFKA-17713:
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Reviewer: Kevin Wu
> Ensure snapshots are aligned to batch boundaries
> ------------------------------------------------
>
> Key: KAFKA-17713
> URL: https://issues.apache.org/jira/browse/KAFKA-17713
> Project: Kafka
> Issue Type: Bug
> Reporter: Kevin Wu
> Priority: Major
>
> In the case of a metadata transaction that is started in the middle of the
> record batch, the records preceding the BeginTransactionRecord in the batch
> are flushed. This means the SnapshotGenerator can emit a snapshot whose fetch
> offset (lastContainedOffset + 1) "X" is not aligned to a batch boundary. This
> can result in followers/observers that fetch and apply this bad snapshot to
> be unable to successfully fetch thereafter since the follower will reject the
> fetched record batch that contains offset X (starting at offset X - M), since
> X - M < X.
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