标签：des style blog http io color ar os 使用
1、Hadoop 项目的四大模块
3、技能
1）Linux 64 位操作系统，CentOS 6.4 版本，VMWare 搭建的虚拟机
2）虚拟机可以联网
解压命令：tar -zxvf hadoop-2.2.0-src.tar.gz
之后进入到解压文件夹下，可以查看BUILDING.txt文件， more BUILDING.txt ，向下翻页是空格键，其中内容如下
Requirements:
* Unix System
* JDK 1.6+
* Maven 3.0 or later
* Findbugs 1.3.9 (if running findbugs)
* ProtocolBuffer 2.5.0
* CMake 2.6 or newer (if compiling native code)
* Internet connection for first build (to fetch all Maven and Hadoop dependencies)
----------------------------------------------------------------------------------
Maven main modules:
hadoop (Main Hadoop project)
- hadoop-project (Parent POM for all Hadoop Maven modules. )
(All plugins & dependencies versions are defined here.)
- hadoop-project-dist (Parent POM for modules that generate distributions.)
- hadoop-annotations (Generates the Hadoop doclet used to generated the Java
docs)
- hadoop-assemblies (Maven assemblies used by the different modules)
- hadoop-common-project (Hadoop Common)
- hadoop-hdfs-project (Hadoop HDFS)
- hadoop-mapreduce-project (Hadoop MapReduce)
- hadoop-tools (Hadoop tools like Streaming, Distcp, etc.)
- hadoop-dist (Hadoop distribution assembler)
----------------------------------------------------------------------------------
在编译完成之后，可以查看Hadoop的版本信息
libhadoop.so.1.0.0: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, not stripped
[root@centos native]# pwd
/opt/hadoop-2.2.0-src/hadoop-dist/target/hadoop-2.2.0/lib/native
[root@centos native]#
安装linux系统包
安装Maven
|
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-util</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty</artifactId>
<scope>test</scope>
</dependency>
|
进入到Hadoop源码目录下/opt/hadoop-2.2.0-src，运行红色字体[可选项]：
Building distributions:
Create binary distribution without native code and without documentation:
$ mvn package -Pdist -DskipTests -Dtar
Create binary distribution with native code and with documentation:
$ mvn package -Pdist,native,docs -DskipTests -Dtar
Create source distribution:
$ mvn package -Psrc -DskipTests
Create source and binary distributions with native code and documentation:
$ mvn -e -X package -Pdist,native[,docs,src] -DskipTests -Dtar
Create a local staging version of the website (in /tmp/hadoop-site)
$ mvn clean site; mvn site:stage -DstagingDirectory=/tmp/hadoop-site
* 修改<mirrors>内容：
<mirror>
<id>nexus-osc</id>
<mirrorOf>*</mirrorOf>
<name>Nexus osc</name>
<url>http://maven.oschina.net/content/groups/public/</url>
</mirror>
* 修改<profiles>内容：
<profile>
<id>jdk-1.6</id>
<activation>
<jdk>1.6</jdk>
</activation>
<repositories>
<repository>
<id>nexus</id>
<name>local private nexus</name>
<url>http://maven.oschina.net/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>nexus</id>
<name>local private nexus</name>
<url>http://maven.oschina.net/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
将该配置文件复制到用户目录，使得每次对maven创建时，都采用该配置
* 查看用户目录【/home/hadoop】是否存在【.m2】文件夹，如没有，则创建
$ cd /home/hadoop
$ mkdir .m2
* 复制文件
$ cp /opt/modules/apache-maven-3.0.5/conf/settings.xml ~/.m2/
修改： vi /etc/resolv.conf
nameserver 8.8.8.8
nameserver 8.8.4.4
Importing projects to eclipse
When you import the project to eclipse, install hadoop-maven-plugins at first.
$ cd hadoop-maven-plugins
$ mvn install
Then, generate eclipse project files.
$ mvn eclipse:eclipse -DskipTests
At last, import to eclipse by specifying the root directory of the project via
[File] > [Import] > [Existing Projects into Workspace].
注意：
编译过程中如果出现任何有关jdk或者jre的问题：JAVA_HOME environment variable is not set.
标签：des style blog http io color ar os 使用
原文地址：http://blog.csdn.net/shijiebei2009/article/details/40716517
