hadoop 1.X版本在windows下的eclipse里连接hadoop集群时报类似错：Exception in thread "main" java.io.IOException: Failed to set permissions of path: \tmp\hadoop-Administrator\mapred\staging\Administrator-519341271\.staging to 0700这是因为hadoop-core-1.0.2.jar的org.apache.hadoop.fs.FileUtil文件中找到以下部分，注释掉checkReturnValue方法中的下面代码有段需要注释：
private static void checkReturnValue(boolean rv, File p,
FsPermission permission) throws IOException {
/*
//win7 connect to linux hadoop
if (!rv) {
throw new IOException("Failed to set permissions of path: " + p +" to " + String.format("o", permission.toShort()));
}
*/
}
这个jar包是修改过的jar包。用时直接加在项目里即可。
