hadoop上传文件出错:There are 0 datanode(s) running and no node(s) are excluded in this operation.

    org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /kms.sh._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1).  There are 0 datanode(s) running and no node(s) are excluded in this operation.

  • 解决方法一:namenode和datanode的防火墙都关闭。      #iptables  -F,防火墙清空一下。
  • 至于iptables和firewalld的区别请参看这个链接:https://blog.csdn.net/weixin_40658000/article/details/78708375

 

  • 解决方法二:vim   /hadoop路径/hdfs-site.sh
  •    dfs.name.dir 和 dfs.data.dir下面的路径要一致。
  • 文章引自:http://blog.sina.com.cn/s/blog_61d8d9640102whof.html

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