lianetm commented on code in PR #15613:
URL: https://github.com/apache/kafka/pull/15613#discussion_r1554162586
##########
core/src/test/scala/integration/kafka/api/PlaintextConsumerTest.scala:
##########
@@ -654,6 +654,64 @@ class PlaintextConsumerTest extends BaseConsumerTest {
assertEquals(7, consumer.committed(Set(tp2).asJava).get(tp2).offset)
}
+ @ParameterizedTest(name =
TestInfoUtils.TestWithParameterizedQuorumAndGroupProtocolNames)
+ @MethodSource(Array("getTestQuorumAndGroupProtocolParametersAll"))
+ def testCommitAsyncCompletedConsumerCloses(quorum: String, groupProtocol:
String): Unit = {
+ // This is testing the contract that asynchronous offset commit are
completed before the consumer
+ // is closed.
Review Comment:
I would extend with something like : ...before the consumer is closed,
**even when no commit sync is performed as part of the close (due to
auto-commit disabled, or simply because there no consumed offsets).**
That's the key as I see it, fixed in this PR, and being tested here. If the
call to consumer.close performs an actual commit sync (needs auto-commit
enabled and non-empty consumed offsets), then the async callbacks were always
called I expect. The contract was not being respected in case the commit sync
did not happen for some of the reasons mentioned above. Agree?
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