Haruki Okada created KAFKA-16541:
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Summary: Potential leader epoch checkpoint file corruption on OS
crash
Key: KAFKA-16541
URL: https://issues.apache.org/jira/browse/KAFKA-16541
Project: Kafka
Issue Type: Bug
Components: core
Reporter: Haruki Okada
Assignee: Haruki Okada
Pointed out by [~junrao] on
[GitHub|https://github.com/apache/kafka/pull/14242#discussion_r1556161125]
[A patch for KAFKA-15046|https://github.com/apache/kafka/pull/14242] got rid of
fsync of leader-epoch ckeckpoint file in some path for performance reason.
However, since now checkpoint file is flushed to the device asynchronously by
OS, content would corrupt if OS suddenly crashes (e.g. by power failure, kernel
panic) in the middle of flush.
Corrupted checkpoint file could prevent Kafka broker to start-up
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