guozhangwang commented on code in PR #12279:
URL: https://github.com/apache/kafka/pull/12279#discussion_r902943968
##########
streams/src/test/java/org/apache/kafka/streams/processor/internals/DefaultStateUpdaterTest.java:
##########
@@ -603,6 +637,67 @@ public void shouldDrainFailedTasksAndExceptions() throws
Exception {
verifyDrainingExceptionsAndFailedTasks(expectedExceptionAndTasks2,
expectedExceptionAndTasks3, expectedExceptionAndTasks4);
}
+ @Test
+ public void shouldAutoCommitTasksOnInterval() throws Exception {
+ final StreamTask task1 =
createActiveStatefulTaskInStateRestoring(TASK_0_0,
Collections.singletonList(TOPIC_PARTITION_A_0));
+ final StreamTask task2 =
createActiveStatefulTaskInStateRestoring(TASK_0_2,
Collections.singletonList(TOPIC_PARTITION_B_0));
+ final StandbyTask task3 = createStandbyTaskInStateRunning(TASK_1_0,
Collections.singletonList(TOPIC_PARTITION_C_0));
+ final StandbyTask task4 = createStandbyTaskInStateRunning(TASK_1_1,
Collections.singletonList(TOPIC_PARTITION_D_0));
+ when(changelogReader.completedChangelogs())
+ .thenReturn(Collections.emptySet());
+ when(changelogReader.allChangelogsCompleted())
+ .thenReturn(false);
+
+ stateUpdater.add(task1);
+ stateUpdater.add(task2);
+ stateUpdater.add(task3);
+ stateUpdater.add(task4);
+
+ sleep(COMMIT_INTERVAL);
+
+ verifyExceptionsAndFailedTasks();
+ verifyCheckpointTasks(false, task1, task2, task3, task4);
+ }
+
+ @Test
+ public void shouldNotAutoCommitTasksIfIntervalNotElapsed() throws
Exception {
+ final StreamsConfig config = new
StreamsConfig(configProps(Integer.MAX_VALUE));
+ final DefaultStateUpdater stateUpdater = new
DefaultStateUpdater(config, changelogReader, offsetResetter, Time.SYSTEM);
+
+ try {
+ final StreamTask task1 =
createActiveStatefulTaskInStateRestoring(TASK_0_0,
Collections.singletonList(TOPIC_PARTITION_A_0));
+ final StreamTask task2 =
createActiveStatefulTaskInStateRestoring(TASK_0_2,
Collections.singletonList(TOPIC_PARTITION_B_0));
+ final StandbyTask task3 =
createStandbyTaskInStateRunning(TASK_1_0,
Collections.singletonList(TOPIC_PARTITION_C_0));
+ final StandbyTask task4 =
createStandbyTaskInStateRunning(TASK_1_1,
Collections.singletonList(TOPIC_PARTITION_D_0));
+ when(changelogReader.completedChangelogs())
+ .thenReturn(Collections.emptySet());
+ when(changelogReader.allChangelogsCompleted())
+ .thenReturn(false);
+
+ stateUpdater.add(task1);
+ stateUpdater.add(task2);
+ stateUpdater.add(task3);
+ stateUpdater.add(task4);
+
+ verifyNeverCheckpointTasks(task1, task2, task3, task4);
+ } finally {
+ stateUpdater.shutdown(Duration.ofMinutes(1));
+ }
+ }
+
+ private void verifyCheckpointTasks(final boolean enforceCheckpoint, final
Task... tasks) throws Exception {
+ for (final Task task : tasks) {
+ verify(task,
timeout(VERIFICATION_TIMEOUT).atLeast(1)).maybeCheckpoint(enforceCheckpoint);
Review Comment:
When I removed the `timeout(VERIFICATION_TIMEOUT)` the
`shouldAutoCheckpointTasksOnInterval` starts to be flaky (once every ~30 on my
laptop). This is because in that test we do not close the task before
verification, and the system time makes sleeping just one commit interval not
sufficient to be 100% sure (even with commit interval * 2 I can still see
flakiness). So I reverted that removal by the end.
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