Dataflow / MapReduce coordination framework.
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Luke is an OTP application that supports the coordination of flow-oriented parallel computations like MapReduce. It was created to extract common behaviors in Riak’s MapReduce engine.

Quick Start

You must have Erlang/OTP R13 or later to build Luke. A sane GNU-style build system is required if you want to use make to build the project.

git clone git://
cd luke
# or
./rebar compile

To get edoc documentation for Luke, build the “docs” make target.

make docs
# or
./rebar doc


We encourage contributions to Luke from the community.

  1. Fork the luke repository on Github.
  2. Clone your fork or add the remote if you already have a clone of the repository.
git clone
# or
git remote add mine
  1. Create a topic branch for your change.
git checkout -b some-topic-branch
  1. Make your change and commit. Use a clear and descriptive commit message, spanning multiple lines if detailed explanation is needed.
  2. Push to your fork of the repository and then send a pull-request through Github.
git push mine some-topic-branch
  1. A Basho engineer or community maintainer will review your patch and merge it into the main repository or send you feedback.