Contributing to Elasticsearch: How to Get Started

Elasticsearch has infinitely more potential in the hands of someone who knows how it works inside. Community-contributor-turned-employee Nik Everett will help you take your first step inside. You’ll learn how to run from source, debug, read stack traces, write plugins, and send pull requests.

1. ‹#› Nik Everett nik@elastic.co Contributing to Elasticsearch How to Get Started
2. It’s written in Java and you clone it from GitHub…. 2 1 2 3 4 https://github.com/ elastic/ elasticsearch fork, clone, branch Make awesome changes, run tests Push, create pull request Discuss! 5 An “elastic member” will merge it
3. Actions, their parts, and how to find them. 3 Title Here Title Here Title Here Action Request Response TransportAction RequestBuilder RestAction transport means go start here open this file not this one
4. ‹#› Don’t Panic Douglas Adams
5. Two ways to serialize! 5 java.io. Serializable XContent StreamOutput/ StreamInput • Not used • JVM mismatch • Backwards compatibility • HTTP communication • JSON/YAML/Smile/CBOR • Implement ToXContent • Internode communication • getVersion! • Implement Writeable or Streamable
6. More ways to test than you can shake a stick at! 6 Unit tests “Integration” tests REST tests • Targeted and fast • Mocks ok here • Start a cluster in process • Can reach in and hack it • Highly overused • Use a shared cluster • Very limited syntax • Shared with clients
7. ‹#› Please attribute Elastic with a link to elastic.co Except where otherwise noted, this work is licensed under http://creativecommons.org/licenses/by-nd/4.0/ Creative Commons and the double C in a circle are registered trademarks of Creative Commons in the United States and other countries. Third party marks and brands are the property of their respective holders. 7