showuon commented on code in PR #15305:
URL: https://github.com/apache/kafka/pull/15305#discussion_r1570217037
##########
connect/runtime/src/test/java/org/apache/kafka/connect/runtime/distributed/WorkerCoordinatorTest.java:
##########
@@ -533,6 +537,45 @@ public void testSkippingAssignmentFails() {
verify(configStorage).snapshot();
}
+ @Test
+ public void testPollTimeoutExpiry() throws InterruptedException {
+
+ when(configStorage.snapshot()).thenReturn(configState1);
+
+
client.prepareResponse(FindCoordinatorResponse.prepareResponse(Errors.NONE,
groupId, node));
+ coordinator.ensureCoordinatorReady(time.timer(Long.MAX_VALUE));
+
+ client.prepareResponse(joinGroupFollowerResponse(1, "member",
"leader", Errors.NONE));
+
client.prepareResponse(syncGroupResponse(ConnectProtocol.Assignment.NO_ERROR,
"leader", configState1.offset(), Collections.emptyList(),
+ Collections.singletonList(taskId1x0), Errors.NONE));
+
+
client.prepareResponse(FindCoordinatorResponse.prepareResponse(Errors.NONE,
groupId, node));
+
client.prepareResponse(FindCoordinatorResponse.prepareResponse(Errors.NONE,
groupId, node));
+
Review Comment:
Hmm.. I see. The reason is because we didn't make sure the heartbeat is sent
after `time.sleep(sessionTimeoutMs - 1);`. Do you think we could make sure the
heartbeat request or response is sent before next sleep? With that, we can make
sure the session timeout won't happen because we did send out heartbeat every
sessionTimeoutMs - 1.
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