dongxiaoman commented on a change in pull request #7064:
URL: https://github.com/apache/incubator-pinot/pull/7064#discussion_r659915596



##########
File path: 
pinot-broker/src/main/java/org/apache/pinot/broker/broker/helix/HelixBrokerStarter.java
##########
@@ -53,9 +54,7 @@ public HelixBrokerStarter(PinotConfiguration brokerConf, 
String clusterName, Str
   private static PinotConfiguration applyBrokerConfigs(PinotConfiguration 
brokerConf, String clusterName, String zkServers, @Nullable String brokerHost) {
     brokerConf.setProperty(Helix.CONFIG_OF_CLUSTER_NAME, clusterName);
     brokerConf.setProperty(Helix.CONFIG_OF_ZOOKEEPR_SERVER, zkServers);
-    if (brokerHost == null) {
-      brokerConf.clearProperty(Broker.CONFIG_OF_BROKER_HOSTNAME);
-    } else {
+    if (!Strings.isNullOrEmpty(brokerHost)) {

Review comment:
       Based on code reading, I don't see a use case that we need to clear the 
values. cc @Jackie-Jiang for double checking




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