rocketmq使用常见问题

问题：
        1、Caused by: org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to <172.17.42.1:10911> failed

        2、com.alibaba.rocketmq.client.exception.MQClientException: Send [1] times, still failed, cost [1647]ms, Topic: TopicTest1, BrokersSent: [broker-a, null, null]

        3、org.apache.rocketmq.client.exception.MQClientException: Send [3] times, still failed, cost [497]ms, Topic: TopicTest, BrokersSent: [chenyaowudeMacBook-Air.local,     chenyaowudeMacBook-Air.local, chenyaowudeMacBook-Air.local]
        解决：多网卡问题处理
        1、设置producer:  producer.setVipChannelEnabled(false);
        2、编辑ROCKETMQ 配置文件：broker.conf（下列ip为自己的ip）
            namesrvAddr = 192.168.0.101:9876
            brokerIP1 = 192.168.0.101

 

        4、DESC: service not available now, maybe disk full, CL:
        解决：修改启动脚本runbroker.sh，在里面增加一句话即可：        
        JAVA_OPT="${JAVA_OPT} -Drocketmq.broker.diskSpaceWarningLevelRatio=0.98"
        （磁盘保护的百分比设置成98%，只有磁盘空间使用率达到98%时才拒绝接收producer消息）

        常见问题处理：
            https://blog.csdn.net/sqzhao/article/details/54834761
            https://blog.csdn.net/mayifan0/article/details/67633729
            https://blog.csdn.net/a906423355/article/details/78192828