walterddr commented on code in PR #11861:
URL: https://github.com/apache/pinot/pull/11861#discussion_r1370975975


##########
pinot-controller/src/test/java/org/apache/pinot/controller/helix/ControllerTest.java:
##########
@@ -392,7 +392,8 @@ public void 
addFakeServerInstancesToAutoJoinHelixCluster(int numInstances, boole
   public void addFakeServerInstancesToAutoJoinHelixCluster(int numInstances, 
boolean isSingleTenant, int baseAdminPort)
       throws Exception {
     for (int i = 0; i < numInstances; i++) {
-      addFakeServerInstanceToAutoJoinHelixCluster(SERVER_INSTANCE_ID_PREFIX + 
i, isSingleTenant, baseAdminPort + i);
+      addFakeServerInstanceToAutoJoinHelixCluster(SERVER_INSTANCE_ID_PREFIX + 
i, isSingleTenant,
+          NetUtils.findOpenPort(baseAdminPort + i));

Review Comment:
   nit: if one port is unavailable netUtils.findOpenPort will increase by 1 --> 
which essentially makes the next instance i conflict and then tries to increase 
that as well. should we do truly randomize? what's limiting us to keep using 
the base + i format?



##########
pinot-integration-tests/src/test/java/org/apache/pinot/integration/tests/GrpcBrokerClusterIntegrationTest.java:
##########
@@ -139,6 +139,7 @@ public void tearDown()
     stopServer();
     stopBroker();
     stopController();
+    stopKafka();

Review Comment:
   LOL



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