DEBUG [kafka-producer-network-thread | producer-1] (NetworkClient.java:625) - Give up sending metadata request since no node is available DEBUG [kafka-producer-network-thread | producer-1] (NetworkClient.java:496) - Initiating connection to node 1 at VM-0-6-centos:9092. DEBUG [kafka-producer-network-thread | producer-1] (NetworkClient.java:507) - Error connecting to node 1 at VM-0-6-centos:9092: java.io.IOException: Can't resolve address: VM-0-6-centos:9092
解决方式： 本地文件添加hosts文件添加即可
122.51.201.66 VM-0-6-centos
