joshuad2/linkedin-gradle-plugin-for-apache-hadoop

LinkedIn Gradle Plugin for Apache Hadoop

The LinkedIn Gradle Plugin for Apache Hadoop (which we shall refer to as simply the "Hadoop Plugin" for brevity) will help you more effectively build, test and deploy Hadoop applications.

In particular, the Plugin will help you easily work with Hadoop applications like Apache Pig and build workflows for Hadoop workflow schedulers like Azkaban and Apache Oozie.

The Plugin includes the LinkedIn Gradle DSL for Apache Hadoop (which we shall refer to as simply the "Hadoop DSL" for brevity), a language for specifying jobs and workflows for Hadoop workflow schedulers like Azkaban and Apache Oozie.

Hadoop Plugin User Guide

The Hadoop Plugin User Guide is available at [User Guide] (https://github.com/linkedin/linkedin-gradle-plugin-for-apache-hadoop/wiki/User-Guide).

Hadoop DSL Language Reference

The Hadoop DSL Language Reference is available at [Hadoop DSL Language Reference] (https://github.com/linkedin/linkedin-gradle-plugin-for-apache-hadoop/wiki/Hadoop-DSL-Language-Reference).

Project Structure

The project structure is setup as follows:

• hadoop-plugin: Code for the various plugins that comprise the Hadoop Plugin
• hadoop-plugin-test: Test cases for the Hadoop Plugin
• li-hadoop-plugin: LinkedIn-specific extensions to the Hadoop Plugin

Although the li-hadoop-plugin code is generally specific to LinkedIn, it is included in the project to show you how to use subclassing to extend the core functionality of the Hadoop Plugin.

Building and Running Test Cases

To build the Plugin and run the test cases, run ./gradlew build from the top-level project directory.

To see all the test tasks, run ./gradlew tasks from the top-level project directory. You can run an individual test with ./gradlew test_testName. You can also run multiple tests by running ./gradlew test_testName1 ... test_testNameN.

Recent News

• August 2015 Initial pull requests for Oozie versioned deployments and the Oozie Hadoop DSL compiler have been merged
• August 2015 The Hadoop Plugin and Hadoop DSL were released on Github! See the LinkedIn Engineering Blog post for the announcement!
• July 2015 See our talk at the Gradle Summit!