1、提示：Error：Call From yuanxing/10.17.41.xxx to hostname1:9000 failed on connection exception:java.net.ConnectExcepton：Connection refused:no further information;For...
检查Map/Reduce Locations --> Edit Hadoop location
2、需要在Eclipse中，window--preferences--Hadoop Map/Reduce中配置本地windows中的hadoop安装目录，如下图：
hadoop/bin中需要有winutils.exe(hadoop-2.6.0.tar.gz)
3、其中DFS Master中的port需要对本地windows进行开放