mjsax commented on code in PR #17022:
URL: https://github.com/apache/kafka/pull/17022#discussion_r2048203504
##########
clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java:
##########
@@ -772,6 +779,14 @@ synchronized void handleFailedBatch(ProducerBatch batch,
RuntimeException except
}
}
+ /**
+ * Returns {@code true} if the given {@link ProducerBatch} has the same
producer ID but a different epoch than the
+ * {@link #producerIdAndEpoch cached producer ID and epoch}.
+ */
+ synchronized boolean isStaleBatch(ProducerBatch batch) {
Review Comment:
Does this method need to by `synchronized`?
Also seems it could be `private`?
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clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java:
##########
@@ -737,14 +737,21 @@ public synchronized void
maybeTransitionToErrorState(RuntimeException exception)
}
synchronized void handleFailedBatch(ProducerBatch batch, RuntimeException
exception, boolean adjustSequenceNumbers) {
- maybeTransitionToErrorState(exception);
+ if (!isStaleBatch(batch) && !hasFatalError())
Review Comment:
Not sure if I understand the `!hasFatalError()` condition. Can you
elaborate? -- I thought we want to call
`maybeTransitionToErrorState(exception);` for any non-stale batch, independent
of the current error state?
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