hadoop INFO ipc.Client: Retrying connect to server: master/192.168.0.45:54310. Already tried 0 time

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将hadoop的core-site.xml中配置的hadoop.tmp.dir 的目录删除再启动hadoop后,会报错:

INFO ipc.Client: Retrying connect to server: master/192.168.0.45:54310. Already tried 0 time.......

原因是忘记执行hadoop namenode -format,

将hadoop停掉,执行下hadoop namenode -format命令,启动hadoop就OK了