TaiJuWu commented on code in PR #20859:
URL: https://github.com/apache/kafka/pull/20859#discussion_r2546716203
##########
server/src/test/java/org/apache/kafka/server/ReconfigurableQuorumIntegrationTest.java:
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@@ -218,6 +218,82 @@ public void testControllersAutoJoinStandaloneVoter()
throws Exception {
}
}
+ @Test
+ public void testRemovedControllerWontJoinAgain() throws Exception {
+ final var nodes = new TestKitNodes.Builder().
+ setNumBrokerNodes(1).
+ setNumControllerNodes(3).
+ build();
+
+ // Configure the initial voters with one voter having a different
directory ID.
+ // This simulates the case where the controller failed and is brought
back up with a different directory ID.
+ final Map<Integer, Uuid> initialVoters = new HashMap<>();
+ final var oldDirectoryId = Uuid.randomUuid();
+ for (final var controllerNode : nodes.controllerNodes().values()) {
+ initialVoters.put(
+ controllerNode.id(),
+ controllerNode.id() == TestKitDefaults.CONTROLLER_ID_OFFSET ?
+ oldDirectoryId : controllerNode.metadataDirectoryId()
+ );
+ }
Review Comment:
removed.
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