zhrglchp的专栏

精通HADOOP http://blog.youkuaiyun.com/robertleepeak/article/details/6001369

http://www.easyigloo.org/?p=1145 很多时候想要测试hadoop上的一个想法，要求快速创建并运行任务。每个任务包含了至少3个组件。 Mapper类 Reducer类 Wrapper类 下面的代码用以产生空模板，只是将变量替换成自己的类名 MAPPER ------------------------------------------...

http://www.360doc.com/content/11/0406/18/11586_107636584.shtml

package operateFile; import java.io.BufferedInputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java....

import java.io.IOException; import java.util.ArrayList; import java.util.List; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.BlockLocation; ...

http://www.javabloger.com/article/mapreduce-mysql.html

http://www.open-open.com/lib/view/open1328413245124.html http://www.blogjava.net/ivanwan/archive/2011/01/10/342685.html http://www.linuxidc.com/Linux/2012-01/51631.htm

http://www.hadoopor.com/thread-3893-1-1.html http://blog.youkuaiyun.com/savechina/article/details/5835933 http://hi.baidu.com/lzpsky/blog/item/99d58738b08a68e7b311c70d.html

http://langyu.iteye.com/blog/916304 http://apps.hi.baidu.com/share/detail/31497615 hadoop中每个节点map和reduce个数的设置调优 http://samuschen.iteye.com/blog/859971 Job.setNumMapTasks http://www.hadoopor...

http://hi.baidu.com/shuyan50/blog/item/576477be25acaa1819d81f19.html

http://apps.hi.baidu.com/share/detail/31192333 http://hi.baidu.com/whyang2006/blog/item/1584447ea57eed280dd7dac3.html

file:///E:/hadoop/搭建/hadoop集群搭建%20-%20aidayei的专栏%20-%20博客频道%20-%20youkuaiyun.com.mht http://sunjun041640.blog.163.com/blog/static/256268322010631118132/ [root@localhost ~]# hadoop fs -ls ＃会出现如下情况 09/04...

http://www.cnblogs.com/forfuture1978/archive/2010/11/14/1877086.html 加例子

http://blog.youkuaiyun.com/dajuezhao/article/details/6365053 http://blog.sina.com.cn/s/blog_62a9902f0100xnil.html http://my.oschina.net/u/146658/blog/49521 http://blog.youkuaiyun.com/inte_sleeper/art...

http://www.blogjava.net/killme2008/archive/2008/06/05/206043.html

import java.io.File; import java.io.IOException; import java.io.InputStream; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.FSDataInputStream; import org.apache.hadoop...

在Hadoop编写生产环境的任务时，定义以下任务，要求是相同的MapReduce任务，但Hadoop0.20API中并不总是可用。 1) 获取HDFS文件或目录的大小  通过查看执行任务的输入数据的数量，动态改变使用到任务中的reducer的数量。 2) 从HDFS目录中递归移除所有零字节文件  reducer中使用MultipleOutput类时（作用比Mapper中要小），会产生很...

http://www.tbdata.org/archives/1019

http://www.360doc.com/content/11/0406/18/11586_107636584.shtml

hadoop使用中的几个小细节(二) 1 某次正常运行mapreduce实例时,抛出错误 java.io.IOException: All datanodes xxx.xxx.xxx.xxx:xxx are bad. Aborting… at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.processDatanodeError(...

http://phz50.iteye.com/blog/932373 http://blog.youkuaiyun.com/snrqtdhuqf/article/details/7006489

http://www.thegeekstuff.com/2012/02/hadoop-pseudo-distributed-installation/ 1. Create a Hadoop User # adduser hadoop # passwd hadoop 2. Download Hadoop Common # su - hadoop $ wget http:/...

mapreduce example http://phz50.iteye.com/blog/932373 http://www.ibm.com/developerworks/cn/opensource/os-cn-hadoop2/index.html http://blog.youkuaiyun.com/snrqtdhuqf/article/details/7006489 分布式计算开源...

hadoop执行stop-all.sh的时候总是出现 “no namenode to stop” 这个原因其实是因为在执行stop-all.sh时，找不到pid文件了。 在 HADOOP_HOME/conf/ hadoop-env.sh 里面，修改配置如下： export HADOOP_PID_DIR=/home/hadoop/pids pid文件默认在/tmp目录下，而/t...

Hadoop传递参数的方法总结 http://eryk.iteye.com/blog/1118764

http://www.yun5u.com/articles/articleshadoop-mapreduce-sql-multi-max-min.html

http://blog.youkuaiyun.com/chengweipeng123/article/details/7174717

http://luyongfugx.blogbus.com/logs/41105881.html

http://www.easyigloo.org/?p=1143

import java.util.*; public class StringUtil { /** * Converts an array of string to a string. */ public static String arrayToString(String[] stringArray, String OutputDelimit...

import java.io.IOException; import java.io.PrintStream; import java.util.StringTokenizer; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import org.apache.hadoop...