自编译Hadoop Eclipse 插件

eclipse下进行mapreduce程序的开发调试，需要安装Hadoop eclipse插件，如果hadoop解压包下存在{hadoop_home}contribeclipse-plugin目录，则可以直接将其中的eclipse插件拷贝至eclipseplugins目录，重启eclipse即可，若不存在此文件夹，则需要自己编译得到插件包。本人只实验完成了windows下的hadoop eclipse 插件编译过程，步骤如下
1、将hadoop解压。比如：D:hadoop-1.0.3。2、进入D:hadoop-1.0.3srccontrib目录。将build-contrib.xml复制到D:hadoop-1.0.3srccontribeclipse-plugin目录下。3、修改build-contrib.xml文件：将hadoop.root改为hadoop解压目录。<property name=”hadoop.root” location=” D:hadoop-1.0.3″/>在下面添加如下两行：Eclipse安装根目录，和hadoop版本。<property name=”eclipse.home” location=”D:eclipse”/><property name=”version” value=”1.0.3″/>4、在D:hadoop-1.0.3下创建build文件夹，将hadoop-core-1.0.3.jar复制进来，并将以下jar包复制进来：commons-configuration-1.6.jar、commons-httpclient-3.0.1.jar、commons-lang-2.4.jar、jackson-core-asl-1.8.8.jar、jackson-mapper-asl-1.8.8.jar.5、在D:hadoop-1.0.3uild目录下创建D:hadoop-1.0.3uildivylibHadoopcommon目录并将commons-cli-1.2.jar复制到该目录下。6、修改 D:hadoop-1.0.3srccontribeclipse-plugin下的build.xml文件<target name=”jar” depends=”compile” unless=”skip.contrib”><mkdir dir=”${build.dir}/lib”/><copy file=”${hadoop.root}/build/hadoop-core-${version}.jar” tofile=”${build.dir}/lib/hadoop-core.jar” verbose=”true”/><copy file=”${hadoop.root}/build/ivy/lib/Hadoop/common/commons-cli-${commons-cli.version}.jar” todir=”${build.dir}/lib” verbose=”true”/>《--以下为新增加内容--》<copy file=”${hadoop.root}/build/commons-configuration-1.6.jar” todir=”${build.dir}/lib” verbose=”true”/><copy file=”${hadoop.root}/build/commons-httpclient-3.0.1.jar” todir=”${build.dir}/lib” verbose=”true”/><copy file=”${hadoop.root}/build/commons-lang-2.4.jar” todir=”${build.dir}/lib” verbose=”true”/><copy file=”${hadoop.root}/build/jackson-core-asl-1.8.8.jar” todir=”${build.dir}/lib” verbose=”true”/><copy file=”${hadoop.root}/build/jackson-mapper-asl-1.8.8.jar” todir=”${build.dir}/lib” verbose=”true”/><jarjarfile=”${build.dir}/hadoop-${name}-${version}.jar”manifest=”${root}/META-INF/MANIFEST.MF”><fileset dir=”${build.dir}” includes=”classes/ lib/”/><fileset dir=”${root}” includes=”resources/ plugin.xml”/></jar></target>7、build.xml还需要修改以下内容： <import file="build-contrib.xml"/> //改为使用当前目录下build-contrib.xml另外找到<path id="classpath">标签，下面加入<pathelement location="${hadoop.root}/hadoop-core-1.1.2.jar"/>8、修改：MANIFEST.MF文件。目录：D:hadoop-1.0.3srccontribeclipse-pluginMETA-INFBundle-ClassPath那一栏加入如下信息：Bundle-ClassPath: classes/,lib/hadoop-core.jar,lib/commons-cli-1.2.jar,lib/commons-configuration-1.6.jar,lib/commons-httpclient-3.0.1.jar,lib/commons-lang-2.4.jar,lib/commons-jackson-core-asl-1.8.8.jar,lib/commons-jackson-mapper-asl-1.8.8.jar9、在控制台切换到目录D:hadoop-1.0.3srccontribeclipse-plugin，使用Ant进行编译。10、最后生成的结果会在D:hadoop-1.0.3uildcontribeclipse-plugin下面。更多Hadoop相关信息见Hadoop 专题页面 http://www.linuxidc.com/topicnews.aspx？tid=13