lianetm commented on code in PR #16031:
URL: https://github.com/apache/kafka/pull/16031#discussion_r1624694081


##########
clients/src/test/java/org/apache/kafka/clients/consumer/internals/CommitRequestManagerTest.java:
##########
@@ -747,21 +748,19 @@ public void 
testOffsetCommitSyncTimeoutNotReturnedOnPollAndFails() {
             new TopicPartition("topic", 1),
             new OffsetAndMetadata(0));
 
-        // Send sync offset commit request that fails with retriable error.
-        long expirationTimeMs = time.milliseconds() + retryBackoffMs * 2;
-        CompletableFuture<Void> commitResult = 
commitRequestManager.commitSync(offsets, expirationTimeMs);
-        completeOffsetCommitRequestWithError(commitRequestManager, 
Errors.REQUEST_TIMED_OUT);
+        // Send sync offset commit request.
+        long deadlineMs = time.milliseconds() + retryBackoffMs * 2;
+        CompletableFuture<Void> commitResult = 
commitRequestManager.commitSync(offsets, deadlineMs);
 
-        // Request retried after backoff, and fails with retriable again. 
Should not complete yet
+        // Make the first request fail with a retriable error. Should not 
complete yet
         // given that the request timeout hasn't expired.
         time.sleep(retryBackoffMs);
         completeOffsetCommitRequestWithError(commitRequestManager, 
Errors.REQUEST_TIMED_OUT);
         assertFalse(commitResult.isDone());
 
         // Sleep to expire the request timeout. Request should fail on the 
next poll.
         time.sleep(retryBackoffMs);
-        NetworkClientDelegate.PollResult res = 
commitRequestManager.poll(time.milliseconds());
-        assertEquals(0, res.unsentRequests.size());
+        completeOffsetCommitRequestWithError(commitRequestManager, 
Errors.REQUEST_TIMED_OUT);

Review Comment:
   uhm this is exactly my concern on [comment 
above](https://github.com/apache/kafka/pull/16031/files#r1624689065). Before 
this PR poll would throw timeout because it knows that the call to commitSync 
had a deadline that expired. Now it requires a response to the request saying 
that it timed out. Same outcome, but it needs to sit and wait for something it 
already knows.



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