目标: 编译Apache Hadoop2.2.0在win7x64环境下的Eclipse插件 环境: win7x64家庭普通版 eclipse-jee-kepler-SR1-win32-x86_64.zip Apache Ant(TM) version 1.8.4 compiled on May 22 2012 java version "1.7.0_45" 參考文章: http://kangfoo.u.qiniudn.com/article/2013/12/build-hadoop2x…
第一步:进入clientShell fulong@FBI008:~$ sqoop.sh client Sqoop home directory: /home/fulong/Sqoop/sqoop-1.99.3-bin-hadoop200 Sqoop Shell: Type 'help' or '\h' for help. sqoop:000> set server --host FBI003 --port 12000 --webapp sqoop Server is set successful…
环境: hadoop-2.5.0-cdh5.2.0 mahout-0.9-cdh5.2.0 步骤: 基本思路是,将mahout下的全部jar包都引入hadoop的classpath就可以,所以改动了$HADOOP_HOME/etc/hadoop/hadoop-env.sh,加入例如以下代码将mahout的全部jar包引入hadoop的classpath: for b in $MAHOUT_HOME/lib/*.jar; do if [ "$HADOOP_CLASSPATH" ];…
异常: 2014-02-24 12:15:48,507 WARN [Thread-2] util.DynamicClassLoader (DynamicClassLoader.java:<init>(106)) - Failed to identify the fs of dir hdfs://fulonghadoop/hbase/lib, ignored java.io.IOException: No FileSystem for scheme: hdfs 解决: 在pom文件里增加: &…
通过Mahout构建推荐系统时,假设我们须要添�某些过滤规则(比方:item的创建时间在一年以内),则须要用到IDRescorer接口,该接口源代码例如以下: package org.apache.mahout.cf.taste.recommender; /** * <p> * A {@link Rescorer} which operates on {@code long} primitive IDs, rather than arbitrary {@link Object}s. * …