OpenFest.org: MariaDB and open source collaboration
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Collaboration in open source - how does it really work? Practical examples from MariaDB development Otto Kekäläinen, OpenFest 7.11.2015, Sofia, Bulgaria
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OpenFest.org: MariaDB and open source collaboration
- 1. © 2015 MariaDB Foundation1 * * Collaboration in open source - how does it really work? Practical examples from MariaDB development Otto Kekäläinen OpenFest 7.11.2015 Sofia, Bulgaria
- 2. © 2015 MariaDB Foundation2 * * What competitive advantage do the human species possess that made us able to conqueror the planet?
- 3. © 2015 MariaDB Foundation3 * * Symbols that can transfer complex information across any distance or time with great accuracy
- 4. © 2015 MariaDB Foundation4 * * Towards the best solution in the world Open source software development is exiting
- 5. © 2015 MariaDB Foundation5 * * Funded by MariaDB.com, Booking.com, Visma, Automattic (WordPress.com), Odin/Parallels, Verkkokauppa.com...
- 6. © 2015 MariaDB Foundation6 * * Continuity and open collaboration
- 7. © 2015 MariaDB Foundation7 * * Continuity ● The Foundation has the relevant technical assets and tools (website mariadb.org, version control repository, build and release systems). ● The Foundation has copyright via staff work and contributor work (CLA). For the rest (some copyrights, trademark etc) the Foundation has irrevocable licenses to use (e.g. GPL, BSD).
- 8. © 2015 MariaDB Foundation8 * * Foundation staff ● 6 persons, including ”Monty” Widenius ● Makes MariaDB available to as many users as possible (porting, packaging) ● Single contact point for collaboration and contributions – The Foundation makes sure all pull requests and patches are reviewed
- 9. © 2015 MariaDB Foundation9 Open collaboration The Foundation is open, inclusive and enables everybody to contribute and collaborate on equal basis.
- 10. © 2015 MariaDB Foundation10 * * Open source is an opportunity ● Freedom to use ● Freedom to study ● Freedom to improve ● Freedom to redistribute Freedoms, not obligations
- 11. © 2015 MariaDB Foundation11 Open source vs. closed source is like democracy vs. totalitarism Even the best strategy does not guarantee successful execution
- 12. © 2015 MariaDB Foundation12 Collaboration Give and get
- 13. © 2015 MariaDB Foundation13 * * All contributions are valuable ● code ● testing ● translations ● documentation ● graphics, design ● packaging and distribution ● marketing, advocacy ● good bug report, feedback, ideas
- 14. © 2015 MariaDB Foundation14 * * Who are the contributors? ● codership.com ● freesa.org ● galeracluster.com ● gmail.com ● google.com ● hotmail.com ● iki.fi ● mariadb.com ● mariadb.org git log | grep Author See https://mariadb.com/kb/en/mariadb/log-of-mariadb-contributions/ for details ● mongosearch.org ● openquery.com ● oracle.com ● primebase.org ● skysql.com ● suse.com ● tokutek.com ● twitter.com ● xiphis.org ● yahoo.com
- 15. © 2015 MariaDB Foundation15 Reasons to contribute Scratch your own itch!
- 16. © 2015 MariaDB Foundation16 Reasons to contribute
- 17. © 2015 MariaDB Foundation17 Reasons to contribute
- 18. © 2015 MariaDB Foundation18 Reasons to contribute
- 19. © 2015 MariaDB Foundation19 Reasons to contribute
- 20. © 2015 MariaDB Foundation20 Cost vs benefit in contributions Keep it simple (but not too simple)
- 21. © 2015 MariaDB Foundation21
- 22. © 2015 MariaDB Foundation22 * * Facilitate collaboration, be inclusive ● Publish code in real time, not just at release time ● Discuss and plan on public mailing list ● Chat in the public (e.g. IRC online, meetings offline) ● Public bug tracker, transparent progress and priorities ● Respond quickly to pull requests on Github and to bug reports that have patches attached ● Keep documentation up-to-date, develop documentation alongside code and allow also contributions in documentation
- 23. © 2015 MariaDB Foundation23 How does one manage a big project with millions of lines of code? You don't.
- 24. © 2015 MariaDB Foundation24 Interfaces and APIs ● Divide and conqueror: modularize everything ● Split long files into separate files. – Easier to read and grasp, easier to merge in git. ● Define clear interfaces between components so that anybody using the interface does not have to care what happens “behind the wall”. ● Use semantic version numbers (1.0, 1.0.1, 1.1, 2.0., 2.2...) and other common conventions. ● Contracts and promises that the interfaces will continue to work in the future too.
- 25. © 2015 MariaDB Foundation25 * * Be inclusive
- 26. © 2015 MariaDB Foundation26 * * Be inclusive
- 27. © 2015 MariaDB Foundation27 * * Be inclusive
- 28. © 2015 MariaDB Foundation28 Collaboration problems? Support requests and random ideas vs Real contributions and talent
- 29. © 2015 MariaDB Foundation29 Collaboration problems? Automatic testing to help review contributions and focus human time on best contributions
- 30. © 2015 MariaDB Foundation30 Collaboration opportunities? ”Given enough eyeballs all bugs are shallow” – Linus law
- 31. © 2015 MariaDB Foundation31 Also for the fun of it!
- 32. © 2015 MariaDB Foundation32 * * Symbols extend our memory beyond our brain. Code extends our thinking process beyond our brain.
- 33. © 2015 MariaDB Foundation33 Thanks! mariadb.org @ottokekalainen [email protected]