kevin-wu24 commented on code in PR #19589: URL: https://github.com/apache/kafka/pull/19589#discussion_r2254727315
########## core/src/test/java/kafka/server/ReconfigurableQuorumIntegrationTest.java: ########## @@ -164,4 +169,71 @@ public void testRemoveAndAddSameController() throws Exception { } } } + + @Test + public void testControllersAutoJoinStandaloneVoter() throws Exception { + try (KafkaClusterTestKit cluster = new KafkaClusterTestKit.Builder( + new TestKitNodes.Builder(). + setNumBrokerNodes(1). + setNumControllerNodes(3). + setFeature(KRaftVersion.FEATURE_NAME, KRaftVersion.KRAFT_VERSION_1.featureLevel()). + build() + ). + setConfigProp(QuorumConfig.QUORUM_AUTO_JOIN_ENABLE_CONFIG, true). + setStandalone(true). + build() + ) { + cluster.format(); + cluster.startup(); + try (Admin admin = Admin.create(cluster.clientProperties())) { + TestUtils.retryOnExceptionWithTimeout(30_000, 10, () -> { + Map<Integer, Uuid> voters = findVoterDirs(admin); + assertEquals(new HashSet<>(List.of(3000, 3001, 3002)), voters.keySet()); + for (int replicaId : new int[] {3000, 3001, 3002}) { + assertNotEquals(Uuid.ZERO_UUID, voters.get(replicaId)); Review Comment: Yeah, I can check that each replica has the exact metadata dir ID as what is in the TestKitNodes. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org