RocketMQ 报错: ClusterListSubCommand 执行失败 - 无法连接到 Broker

"RocketMQ 报错: org.apache.rocketmq.tools.command.SubCommandException: ClusterListSubCommand command failed\n\tat org.apache.rocketmq.tools.command.cluster.ClusterListSubCommand.execute(ClusterListSubCommand.java:72)\n\tat org.apache.rocketmq.tools.command.MQAdminStartup.main(MQAdminStartup.java:46)\nCaused by: org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to \u003cbroker_address\u003e failed\n\tat org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeSync(NettyRemotingClient.java:359)\n\tat org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeSync(NettyRemotingClient.java:350)\n\tat org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeSync(NettyRemotingClient.java:330)\n\tat org.apache.rocketmq.namesrv.NamesrvController.getKVConfigManager(NamesrvController.java:243)\n\tat org.apache.rocketmq.tools.command.cluster.ClusterListSubCommand.execute(ClusterListSubCommand.java:67)\n\t... 1 more\nCaused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: \u003cbroker_address\u003e\n\tat sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)\n\tat sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)\n\tat io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330)\n\tat io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334)\n\tat io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)\n\tat io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)\n\tat io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)\n\tat io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)\n\tat io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)\n\tat io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)\n\tat java.lang.Thread.run(Thread.java:748)\nCaused by: java.net.ConnectException: Connection refused\n\t... 11 more\n\n该错误通常发生在 RocketMQ 工具命令 ClusterListSubCommand 执行失败时。错误的根本原因是工具无法连接到指定的 Broker 地址。\n\n为了解决这个问题，您可以尝试以下步骤：\n\n1. 验证命令中指定的 Broker 地址是否正确。确保 Broker 正在运行且可访问。\n2. 检查是否有任何防火墙规则或网络配置阻止连接到 Broker。确保必要的端口已打开并可访问。\n3. 验证运行工具的机器与 Broker 之间的网络连接。检查是否有任何网络问题或限制。\n4. 确保使用的 RocketMQ 版本与 Broker 版本兼容。工具和 Broker 版本之间的不兼容有时会导致连接问题。\n5. 如果您在集群环境中使用 RocketMQ，请确保集群配置已正确设置，所有必要的组件（NameServer、Broker）都在运行。\n\n通过解决这些步骤，您应该能够解决连接问题并成功执行 ClusterListSubCommand 命令。"