GitHub - cwensel/cascading.load: A simple command line interface for building high load cluster jobs. (original) (raw)

Welcome

This is the Cascading.Load application.

It provides a simple command line interface for building high load cluster jobs.

This application is built with Cascading.

Cascading is a feature rich API for defining and executing complex, scale-free, and fault tolerant data processing workflows on a Hadoop cluster. It can be found at the following location:

http://www.cascading.org/

Installing

This step is not necessary if you wish to run Load directly from the uncompressed distribution folder or Load was pre-installed with your Hadoop distribution. Type,

> which cascading.load

to see if it is already been added to your PATH.

Installed for all users into "/usr/local/bin":

> sudo ./bin/cascading.load install

or for the current user only into "~/.cascading.load":

> ./bin/cascading.load install

For detailed instructions:

> ./bin/cascading.load help install

Choose the method that best suites your environment.

If you are running Load on AWS Elastic MapReduce, you need to follow the Elastic MapReduce instructions on the AWS site, which typically expect the cascading.load-.jar to be uploaded to AWS S3.

Using

The environment variable HADOOP_HOME should always be set to use Cascading.Load.

To run from the command line with the jar, Hadoop should be in the path:

> hadoop jar cascading.load-<release-date>.jar <args>

If no args are given, a comprehensive list of commands will be printed.

Or if Load has been installed from above:

> cascading.load <args>

Building

This release requires at least Cascading 1.2.x and will pull all dependencies from the relevant maven repos, including conjars.org.

To build a jar,

ant retrieve jar

To test,

ant test

License

See LICENSE.txt