CalvinConfluent commented on code in PR #17402:
URL: https://github.com/apache/kafka/pull/17402#discussion_r1792333412
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clients/src/test/java/org/apache/kafka/common/requests/RequestResponseTest.java:
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@@ -3063,12 +3063,14 @@ private AddOffsetsToTxnResponse
createAddOffsetsToTxnResponse() {
}
private EndTxnRequest createEndTxnRequest(short version) {
+ boolean isTransactionV2Enabled = true;
Review Comment:
maybe something like
`boolean isTransactionV2Enabled = version >
LAST_STABLE_VERSION_BEFORE_TRANSACTION_V2`
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clients/src/test/java/org/apache/kafka/clients/producer/internals/TransactionManagerTest.java:
##########
@@ -2980,6 +2980,68 @@ public void
testEpochBumpAfterLastInflightBatchFails(boolean transactionV2Enable
assertEquals(0, transactionManager.sequenceNumber(tp0));
}
+ @ParameterizedTest
+ @ValueSource(booleans = {true})
Review Comment:
true,false?
##########
clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java:
##########
@@ -1568,6 +1571,17 @@ public void handleResponse(AbstractResponse response) {
Errors error = endTxnResponse.error();
if (error == Errors.NONE) {
+ // For transaction version 5+, the broker includes the
producerId and producerEpoch in the EndTxnResponse.
+ // KIP-890 Part 2 mandates bumping the epoch after every
transaction. If the epoch overflows,
+ // a new producerId is returned with epoch set to 0.
+ if (isTransactionV2Enabled) {
Review Comment:
The isTransactionV2Enabled is locked within a transaction's life cycle. I
wonder if we should abort the transaction if isTransactionV2Enabled=true but
endTxnResponse version<5.
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