hadoop搭建异常 /tmp/hadoop-root/mapred/system/jobtracker.info could only be replicated to 0 nodes, inste

/tmp/hadoop-root/mapred/system/jobtracker.info could only be replicated to 0 nodes, instead of 1

hadoop搭建异常 /tmp/hadoop-root/mapred/system/jobtracker.info could only be replicated to 0 nodes, inste_第1张图片

java.net.NoRouteToHostException: No route to host

在hadoop集群中使用copyFromLocal命令的时候发生错误,识别不到datanode节点,重新初始化也没有用,此时删除临时文件夹下的所有文件,关闭iptables, /etc/init.d/iptables stop,再重新格式化,问题解决!

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