[ROCKETMQ-47] Avoid broker updates of NameServer address list on startup...

[ROCKETMQ-47] Avoid broker updates of NameServer address list on startup twice, closes apache/incubator-rocketmq#42

broker/src/main/java/org/apache/rocketmq/broker/BrokerController.java

@@ -156,11 +156,6 @@ public class BrokerController {
         this.brokerOuterAPI = new BrokerOuterAPI(nettyClientConfig);
         this.filterServerManager = new FilterServerManager(this);
 
-        if (this.brokerConfig.getNamesrvAddr() != null) {
-            this.brokerOuterAPI.updateNameServerAddressList(this.brokerConfig.getNamesrvAddr());
-            log.info("user specfied name server address: {}", this.brokerConfig.getNamesrvAddr());
-        }
-
         this.slaveSynchronize = new SlaveSynchronize(this);
 
         this.sendThreadPoolQueue = new LinkedBlockingQueue<Runnable>(this.brokerConfig.getSendThreadPoolQueueCapacity());
@@ -317,6 +312,7 @@ public class BrokerController {
 
             if (this.brokerConfig.getNamesrvAddr() != null) {
                 this.brokerOuterAPI.updateNameServerAddressList(this.brokerConfig.getNamesrvAddr());
+                log.info("Set user specified name server address: {}", this.brokerConfig.getNamesrvAddr());
             } else if (this.brokerConfig.isFetchNamesrvAddrByAddressServer()) {
                 this.scheduledExecutorService.scheduleAtFixedRate(new Runnable() {