[2022-03-11 19:53:49] java.net.ConnectException: Connection refused: connect.
因为hive是基于hadoop的，所以先查看hadoop集群信息。
我们直接去看dataNode
看见节点2已经GG了，而且网卡有问题，我们重启网卡
直接在master上重启hadoop
[root@hadoop-node01 sbin]# ./start-all.sh Starting namenodes on [hadoop-node01] 上一次登录：五 3月 11 20:10:30 CST 2022从 192.168.67.1pts/0 上 hadoop-node01: namenode is running as process 3323. Stop it first. Starting datanodes 上一次登录：五 3月 11 20:11:11 CST 2022pts/0 上 hadoop-node01: datanode is running as process 3445. Stop it first. hadoop-node03: datanode is running as process 2618. Stop it first. Starting secondary namenodes [hadoop-node02] 上一次登录：五 3月 11 20:11:12 CST 2022pts/0 上 Starting resourcemanager 上一次登录：五 3月 11 20:11:23 CST 2022pts/0 上 resourcemanager is running as process 3864. Stop it first. Starting nodemanagers 上一次登录：五 3月 11 20:11:48 CST 2022pts/0 上 hadoop-node03: nodemanager is running as process 2738. Stop it first. hadoop-node01: nodemanager is running as process 3987. Stop it first. [root@hadoop-node01 sbin]#
这样就可以连接了
