cadonna commented on code in PR #12161:
URL: https://github.com/apache/kafka/pull/12161#discussion_r897818350
##########
streams/src/test/java/org/apache/kafka/streams/integration/PauseResumeIntegrationTest.java:
##########
@@ -335,7 +333,39 @@ public void pauseResumehouldWorkAcrossInstances() throws
Exception {
kafkaStreams.resume();
waitForApplicationState(singletonList(kafkaStreams), State.RUNNING,
STARTUP_TIMEOUT);
- awaitOutput(OUTPUT_STREAM_1, 3, COUNT_OUTPUT_DATA);
+ awaitOutput(OUTPUT_STREAM_1, 5, COUNT_OUTPUT_DATA);
+ }
+
+ @Test
+ public void pausedTopologyShouldNotRestoreStateStores() throws Exception {
+ produceToInputTopics(INPUT_STREAM_1, STANDARD_INPUT_DATA);
+
+ kafkaStreams = buildKafkaStreams(OUTPUT_STREAM_1);
+ kafkaStreams2 = buildKafkaStreams(OUTPUT_STREAM_1);
+ kafkaStreams.start();
+ kafkaStreams2.start();
+
+ waitForApplicationState(Arrays.asList(kafkaStreams, kafkaStreams2),
State.RUNNING, STARTUP_TIMEOUT);
+
+ awaitOutput(OUTPUT_STREAM_1, 5, COUNT_OUTPUT_DATA);
+
+ kafkaStreams.close();
+ kafkaStreams2.close();
+
+ kafkaStreams = buildKafkaStreams(OUTPUT_STREAM_1);
+ kafkaStreams2 = buildKafkaStreams(OUTPUT_STREAM_1);
+ kafkaStreams.cleanUp();
+ kafkaStreams2.cleanUp();
+
+ kafkaStreams.pause();
+ kafkaStreams2.pause();
+ kafkaStreams.start();
+ kafkaStreams2.start();
+
+ waitForApplicationState(Arrays.asList(kafkaStreams, kafkaStreams2),
State.REBALANCING, STARTUP_TIMEOUT);
+
+ assertTrue(kafkaStreams.allLocalStorePartitionLags().isEmpty());
+ assertTrue(kafkaStreams2.allLocalStorePartitionLags().isEmpty());
Review Comment:
I played a bit around with the test and indeed if you add a
`Thread.sleep(2000)` before these asserts, the test fails because the returned
map is not empty. That means, the assignment was not finished before the
asserts were called.
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