rocketmq broker会占用多个端口？

[Hoxxx]

在broker配置了listenPort=30911，启动后发现30909和30912都被rocketmq占用了，这是正常的吗？

[Hoxxx]

现在还有个新问题，broker group 2改了端口后（从30911改成了31911），mqadmin ClusterList 看不到broker group 2，想知道rocketMQ controller支持下面这种架构吗？

[Hoxxx]

这个问题估计是namesrv里metadata的问题，把namesrv的controllerStorePath全部删了重建貌似就好了
第一次提示地址被使用；第二次改了端口显示不出来；第三次把controllerStorePath全部干掉重建就显示出来了

[Hoxxx]

另外想问下mqshutdown broker能指定broker吗？

[ShadowySpirits]

在broker配置了listenPort=30911，启动后发现30909和30912都被rocketmq占用了，这是正常的吗？

30909 被占用是因为启动了 fastRemotingServer

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

Lines 429 to 435 in 88000da

	int listeningPort = nettyServerConfig.getListenPort() - 2;
	if (listeningPort < 0) {
	listeningPort = 0;
	}
	fastConfig.setListenPort(listeningPort);
	this.fastRemotingServer = new NettyRemotingServer(fastConfig, this.clientHousekeepingService);

30912 被占用是供 HA 使用

rocketmq/container/src/main/java/org/apache/rocketmq/container/BrokerContainerStartup.java

Line 140 in 88000da

messageStoreConfig.setHaListenPort(brokerConfig.getListenPort() + 1);

另外想问下mqshutdown broker能指定broker吗？

不能，mqshutdown 是通过 ps 来获取 broker pid 的

rocketmq/distribution/bin/mqshutdown

Lines 19 to 30 in 88000da

	broker)
	pid=`ps ax | grep -i 'org.apache.rocketmq.proxy.ProxyStartup' | grep '\-pm local' |grep java | grep -v grep | awk '{print $1}'`
	if [ "$pid" != "" ] ; then
	echo "The mqbroker with proxy enable is running(${pid})..."
	kill ${pid}
	echo "Send shutdown request to mqbroker with proxy enable OK(${pid})"
	fi
	pid=`ps ax | grep -i 'org.apache.rocketmq.broker.BrokerStartup' |grep java | grep -v grep | awk '{print $1}'`
	if [ -z "$pid" ] ; then
	echo "No mqbroker running."
	exit 1;
	fi