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:
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@@ -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.
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