将本地文件复制到Hadoop文件系统
将本地文件复制到Hadoop文件系统
//将本地文件复制到复制到Hadoop文件系统
//目前,其他Hadoop文件系统写入文件时均不调用progress()方法。
package com;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.util.Progressable;
public class FileCopyWithProgress {
public static void main(String[] args) throws Exception{
String localSrc = args[0];
String dst = args[1];
InputStream in = new BufferedInputStream(new FileInputStream(localSrc));
Configuration conf = new Configuration();
FileSystem fs = FileSystem.get(URI.create(dst), conf);
OutputStream out = fs.create(new Path(dst), new Progressable(){
public void progress(){
System.out.println(".");
}
});
IOUtils.copyBytes(in, out, 4096, true);
}
}
Ubuntu14.04下Hadoop2.4.1单机/伪分布式安装配置教程
CentOS安装和配置Hadoop2.2.0
Ubuntu 13.04上搭建Hadoop环境
Ubuntu 12.10 +Hadoop 1.2.1版本集群配置
Ubuntu上搭建Hadoop环境(单机模式+伪分布模式)
Ubuntu下Hadoop环境的配置
单机版搭建Hadoop环境图文教程详解
搭建Hadoop环境(在Winodws环境下用虚拟机虚拟两个Ubuntu系统进行搭建)
评论暂时关闭