今天开启hadoop的时候

 进程已经在运行中,出现datanode running as process 1605. Stop it first.错误,导致datenode2节点没有连接得上

 

解决方法

   先执行stop-all.sh下,然后再执行start-all.sh,亲测有效!

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node2: datanode running as process 1605. Stop it first.