amjadshabani / cassandra2-hadoop2

Build Cassandra 2.0 against Hadoop 2.x.

cassandra2-hadoop2

Hadoop InputFormat for Cassandra. Works with Hadoop-0.21+ and Cassandra 2.x.

Features beyond those supported in the standard InputFormat (at least when I started working on this!):

• Works with Hadoop 2
• Supports combining results from multiple queries over multiple tables (this works as long as the different tables have the same primary key)
• Supports grouping together Rows based on their partition key and an optional subset of clustering columns

To use:

• Download and install this Maven Cassandra plugin: https://github.com/wibiclint/simple-cassandra-maven-plugin

• Build and install into your local Maven repo: mvn clean install

• Include as a dependency in the POM for your project:

    <dependency>
        <groupId>com.github.cassandra2-hadoop2</groupId>
        <artifactId>cassandra2-hadoop2</artifactId>
        <version>0.1-SNAPSHOT</version>
    </dependency>
  

Based originally on work from michaelsembwever, which stems from Dave Brosius's work in CASSANDRA-5201.