配置 安装maven, ant, findbugs, protobuf, cmake 参考:http://cn.soulmachine.me/blog/20140214/ 注意cdh4.2.1需要用protobuf2.4.1编译，否则hadoop-common那里报错 在apache-maven-3.0.5/conf/settings.xml 更改maven镜像 mirror idnexus-osc/id mirrorofc
配置安装maven, ant, findbugs, protobuf, cmake
参考:http://cn.soulmachine.me/blog/20140214/
注意cdh4.2.1需要用protobuf2.4.1编译，否则hadoop-common那里报错
在apache-maven-3.0.5/conf/settings.xml 更改maven镜像
nexus-osc central nexus osc http://maven.oschina.net/content/groups/public/ nexus-spring cdh.repo spring http://repo.spring.io/repo/ nexus-spring2 cdh.releases.repo spring2 http://repo.spring.io/repo/
编译mvn package -dskiptests -pdist,native -dtar
替换jar包从src/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/target里面拿出mr-app.jar重命名为hadoop-mapreduce-client-app-2.0.0-cdh4.2.1-20140801.jar
cd /opt/cloudera/parcels/cdh/lib/hadoop-mapreduce# 上传jar包chmod 755 hadoop-mapreduce-client-app-2.0.0-cdh4.2.1-20140801.jarln -snf hadoop-mapreduce-client-app-2.0.0-cdh4.2.1-20140801.jar hadoop-mapreduce-client-app.jarmv hadoop-mapreduce-client-app-2.0.0-cdh4.2.1.jar /tmp
原文地址：linux 编译 hadoop-cdh4.2.1, 感谢原作者分享。