关于 hadoop 在 java 中 api 的调用在使用前，请确保 hadoop-client 包已经成功导入<!-- https://mvnrepository.com/artifact/org.apache.hadoop/hadoop-client --><dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-client</arti

启动时网卡未启动使用命令查看网卡的运行状态systemctl status network尝试重启网卡systemctl restart network如果不能解决，则可能是 NetworkManager 已经启动的问题systemctl stop NetworkManagersystemctl disable NetworkManager...