hadoop 安装出现的几种异常的处理方法,hadoop没法启动,no namenode to stop问题的解决方法,no datanode

hadoop没法正常启动(1)java 执行  $ bin/hadoop start-all.sh以后,没法启动.node 异常一apache  Exception in thread "main" java.lang.IllegalArgumentException: Invalid URI for NameNode address (check fs.defaultFS): file:///

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