FAILED: Error in metadata: MetaException(message:Got exception: java.net.ConnectException

今天在安装配置玩hive后，进入了hive的命令行执行show databases时抛出一下错误：

FAILED: Error in metadata: MetaException(message:Got exception: java.net.ConnectException Call to hadoop0/192.168.0.10:9000 failed on connection exception: java.net.ConnectException: Connection refused)

后来经过查阅资料发现我忘记启动hadoop集群了！（真是无语了。。。）

重新执行start-all.sh启动hadoop集群！

然后进入hive命令行执行show databases;

hive> show databases
> ;
OK
default
Time taken: 7.488 seconds

结果已经出来了！

注：如果启动hadoop集群后仍然无法成功，请记得查看的hadoop集群是否处于安全模式！

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FAILED: Error in metadata: MetaException(message:Got exception: java.net.ConnectException

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