nodece commented on code in PR #22794:
URL: https://github.com/apache/pulsar/pull/22794#discussion_r1621705155
##########
pulsar-broker/src/test/java/org/apache/pulsar/broker/service/BrokerServiceTest.java:
##########
@@ -1313,6 +1314,67 @@ public void
testCheckInactiveSubscriptionsShouldNotDeleteCompactionCursor() thro
}
+ @Test
+ public void testCheckInactiveSubscriptionWhenNoMessageToAck() throws
Exception {
+ String namespace = "prop/testInactiveSubscriptionWhenNoMessageToAck";
+
+ try {
+ admin.namespaces().createNamespace(namespace);
+ } catch (PulsarAdminException.ConflictException e) {
+ // Ok.. (if test fails intermittently and namespace is already
created)
+ }
+ // set enable subscription expiration.
+ admin.namespaces().setSubscriptionExpirationTime(namespace, 1);
+
+ String topic = "persistent://" + namespace + "/my-topic";
+ Producer<byte[]> producer =
pulsarClient.newProducer().topic(topic).create();
+ producer.send("test".getBytes());
+ producer.close();
+
+ // create consumer to consume all messages
+ Consumer<byte[]> consumer =
pulsarClient.newConsumer().topic(topic).subscriptionName("sub1")
+
.subscriptionInitialPosition(SubscriptionInitialPosition.Earliest).subscribe();
+ consumer.acknowledge(consumer.receive());
+
+ Optional<Topic> topicOptional =
pulsar.getBrokerService().getTopic(topic, true).get();
+ assertTrue(topicOptional.isPresent());
+ PersistentTopic persistentTopic = (PersistentTopic)
topicOptional.get();
+
+ // wait for 1min, but consumer is still connected all the time.
+ // so subscription should not be deleted.
+ Thread.sleep(60000);
+ persistentTopic.checkInactiveSubscriptions();
+ assertTrue(persistentTopic.getSubscriptions().containsKey("sub1"));
+ PersistentSubscription sub = persistentTopic.getSubscription("sub1");
+
+ // shutdown pulsar ungracefully
Review Comment:
A simpler way:
1. Close the topic
2. Remove the topic from the broker cache
3. Start the consumer, and then close the consumer to load the `sub1`.
4. Check inactive subscriptions
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