Installing Hadoop's Eclipse Plugin

Question

I have such a nightmare with the Hadoop\'s Eclipse plugin. First of all the latest Hadoop version (which is 1.1.1) doesn\'t even include the Eclipse plugin jar file. version 1.0

Answer 1

Well, combined with hs3180's answer, here is what I actually did in configuring the compiling.

1. In ${eclipse-plugin-src}/build.xml, use the following directives to include required jars by the eclipse-plugin. Note here that, instead of from ${hadoop.root}/build, copying of the hadoop-core-${version}.jar is now from ${hadoop.root} directly, because if you are using the compiled version of hadoop, the ${hadoop.root}/build folder would be actually empty. Copying of the commons-cli-${commons-cli.version}.jar is now from ${hadoop.root}/lib for the same reason.

2. Modify the ${eclipse-plugin-src}/META-INF/MANIFEST.MF file to accommodate the changes made to ${eclipse-plugin-src}/build.xml.

   Bundle-ClassPath: classes/,
    lib/hadoop-core.jar,
    lib/commons-cli-1.2.jar,
    lib/commons-configuration-1.6.jar,
    lib/jackson-core-asl-1.8.8.jar,
    lib/commons-httpclient-3.0.1.jar,
    lib/jackson-mapper-asl-1.8.8.jar,
    lib/commons-lang-2.4.jar
   

3. Modify the ${hadoop.root}/src/contrib/build-contrib.xml file at two places. The first is to set up the properties needed for the plugin compiling. And the second is to make sure jars, especially hadoop-core-1.0.4.jar, in the ${hadoop.root} folder are visible to javac, because the eclipse-plugin references the hadoop classes. This setup is different from the first two in purpose and thus not dispensable.

When all files correctly configured, call 'ant jar' from ${eclipse-plugin-src}/ in the console shall be sufficient for the rest.