MongoDB, Development and You
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My talk at MongoTorino about how the use of MongoDB empowers your development teams, as well as tips and tricks to get around common pitfalls (and not so common challenges).
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MongoDB, Development and You
- 1. MongoTorino 2013 MongoDB, Development and You Mitch Pirtle! CTO Sounday Music! www.soundaymusic.com
- 3. 45 MINUTES?! Let’s get this thing going then.
- 5. About Me ❖ American, living in Turin! ❖ CTO at Sounday Music! ❖ Mongo Master! ❖ Joomla! Founder! ❖ Contributor to many FOSS! ❖ Family man! ❖ Coach (Giaguari Torino)! ❖ Musician! ❖ Longboarder
- 8. Sounday in 2013 ❖ Growing community of music professionals! ❖ Integrated with many social media platforms! ❖ Very large binary files (audio)! ❖ 100% UGC! ❖ e.commerce B2C, C2C! ❖ Based in Torino! ❖ Engineering based in Cagliari
- 9. The Team
- 11. Ok, not really.
- 13. The Challenge
- 14. The Challenge ❖ “We’re gunning for a grant”! ❖ ❖ “It needs to be live soon” ! ❖ ❖ (zero time)! “We’re disrupting the industry”! ❖ ❖ (no money yet)! (no requirements)! “Wanna move to Cagliari?”
- 16. Ok, it’s not really that bad.
- 17. Well maybe.
- 18. Classic Startup Challenges ❖ Limited budget! ❖ Limited staff! ❖ Limited time! ❖ Zero chance for best practices during development
- 19. How I felt when accepting the challenge
- 20. How it actually looked
- 21. The Solution
- 22. The Solution ❖ Single, RESTful base platform (web, mobile, partners)! ❖ Document database! ❖ Store media in database for simplicity, portability! ❖ Ability to break out separate services when scale needed! ❖ Tethered cloud for initial deployment
- 23. Solution: The application Lithium • • • • • • • Super lightweight PHP framework! RAD! MVC! Promiscuously opinionated! Post-relational! Fully leverages PHP 5.3+! Cherry-picker methodology (mix of functional, object, aspect, and more)
- 24. Solution: The database MongoDB • • • • • Document database! GridFS for large binary files! Scales vertically! Scales horizontally! Reduces male pattern baldness
- 25. Solution: The approach Agile, Xtreme • • • • • • • Quick, iterative steps! Constant refactoring! Captured features during implementation! Pair programming! Local, development and production environments! Development and production environments mirrored! Dedication to DRY
- 26. Sleeper Check!
- 27. The Good
- 29. Lithium saved our bacon ❖ Extremely quick to get bootstrapped and running a base platform! ❖ Many libraries available for specific needs! ❖ Natively talks to non-relational databases! ❖ Intelligent code layout, encourages best practices! ❖ Adapters, filters, this stuff is the shizzle
- 30. MongoDB saved our bacon, with eggs ❖ Simple document structure made for extremely simple models! ❖ Better matched with the objects used in our apps! ❖ GridFS made storing media dead simple! ❖ Being schemaless allowed us to iterate rapidly! ❖ After launch, we completely forgot about MongoDB from an operational standpoint
- 31. The Bad
- 33. The Bad ❖ Hey remember how easy it is to change your document schemas?! ❖ Loosely-typed language and database makes for fun!! ❖ Hope you love the command line. (limited tools)
- 34. And lest we not forget…
- 35. The Ugly
- 37. The Ugly ❖ What do you mean, ‘no need for constraints’?! ❖ Hey this GridFS database is freaking ginormous.! ❖ I’ve never seen that happen before.! ❖ What, there’s no more SQL? Then who’s to blame when something breaks?
- 38. What We Learned ❖ Our code was significantly lighter! ❖ This slim codebase is extremely fast! ❖ Smaller codebase == fewer bugs! ❖ GridFS combined with metadata is really powerful! ❖ Atomic documents + working memory = TO INFINITY AND BEYOND!
- 40. What Else We Learned ❖ Shift responsibilities from tools to developers! ❖ Testing and documentation are NOT OPTIONAL! ❖ Define models, even when iterating rapidly in a schemaless environment! ❖ Consider backup and operational requirements before you get started
- 41. Example Time
- 42. User schema, when we started class Users extends Model { ! //protected $_schema = array() ! }
- 43. User schema, today protected $_schema = array( '_id' => array('type' => 'id'), 'name' => array('type' => 'string'), 'username' => array('type' => 'string'), 'email' => array('type' => 'string'), 'password' => array('type' => 'string'), 'salt' => array('type' => 'string'), 'facebook_id' => array('type' => 'string'), 'date_created' => array('type' => 'date'), 'registration_source' => array('type' => 'string'), 'active' => array('type' => 'boolean', 'default' => false), // to make sure the account is live 'status' => array('type' => 'string'), 'mvadmin' => array('type' => 'boolean', 'default' => false), 'pufadmin' => array('type' => 'boolean', 'default' => false), 'resetadmin' => array('type' => 'boolean', 'default' => false), 'profile' => array('type' => 'string'), 'avatar' => array('type' => 'string'), 'enabled' => array('type' => 'string'), 'address' => array('type' => 'array'), 'vat' => array('type' => 'string'), 'url' => array('type' => 'string'), 'services' => array('type' => 'array'), 'likes' => array('type' => 'array'), // Polymorphic associations 'moderated' => array('type' => 'boolean'), 'follows' => array('type' => 'array'), 'last_login' => array('type' => 'date'), 'edit_time' => array('type' => 'date'), 'last_ip' => array('type' => 'string'), 'login_counter' => array('type' => 'integer'), 'is_legacy' => array('type' => 'boolean'), 'legacy_id' => array('type' => 'integer'), 'partners' => array('type' => 'array'), );
- 45. One last thing
- 46. Behold, the mighty firehose
- 48. Whups, not that one
- 49. rs0:PRIMARY> db.firehose.stats() { "ns" : "sounday_analytics_prod.firehose", "count" : 3146600, "size" : 10086355648, "avgObjSize" : 3205.4775465581897, "storageSize" : 10830245856, "numExtents" : 26, "nindexes" : 1, "lastExtentSize" : 2146426864, "paddingFactor" : 1, "systemFlags" : 1, "userFlags" : 0, "totalIndexSize" : 113204896, "indexSizes" : { "_id_" : 113204896 }, "ok" : 1 }
- 50. Yeah, I said firehose. Got a problem wit dat? Console time If you wanted to see this part of the talk, you should have attended the session.! ! ! ! ! ! :-)
- 51. Sleeper Check!