ecliplse 远程提交程序到虚拟机 hadoop集群 ， 修改Hadoop的源代码---NativeIO问题解决!

   环境: windows 2008 64的位的ecliplse 运行hadoop wordcount 1.已经配置了log4j.properties 2.运行又 出错了 Exception in thread "main" java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z at org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Native Method) at org.apache.hadoop.io.nativeio.NativeIO$Windows.access(NativeIO.java:557) at org.apache.hadoop.fs.FileUtil.canRead(FileUtil.java:977)

at org.apache.hadoop.util.DiskChecker.checkAccessByFileMethods(DiskChecker.java:187)

3.检查:已经配置了winutiles, hadoop.dll 4.百度,要修改hadhoop的源代码(http://www.itnose.net/detail/6177732.html)    在出现错误的的atorg.apache.hadoop.io.nativeio.NativeIO$Windows.access(NativeIO.java:557)我们来看这个类NativeIO的557行 Windows的唯一方法用于检查当前进程的请求，在给定的路径的访问权限， 允许访问， 先修改源代码，return true 时允许访问     public static boolean access(String path, AccessRight desiredAccess)         throws IOException {     return true;      //return access0(path, desiredAccess.accessRight());     }

5.新建包org.apache.hadoop.io.nativeio,复制文件NativeIO,运行ok