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Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
Intro Couchdb
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Intro Couchdb

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  • 1. Introducing CouchDB Tuesday November 11, 2009 Hatem Ben Yacoub
  • 2. Who am I ? ● Hatem Ben Yacoub ● IT Consultant ● Senior Systems Architect ● PHP Expert ● e-Government Specialist ● Energy Engineer ● Open Source Evangelist ● http://phpmagazine.net ● hatem@php.net / @hatem / http://hatem.tel
  • 3. How to build faster, bigger, reliable websites...
  • 4. Scalability
  • 5. Scalability ~== Database optimization
  • 6. RDBMS … old fashion
  • 7. … new fashion ??
  • 8. NoSQL “Not Only SQL”
  • 9. Scaling writes & Scaling reads
  • 10. NoSQL Non-Distributed databases Distributed Databases (Redis, MongoDB, (Cassandra, Hbase, CouchDB, Neo4j, Riak, Scalaris...) Tokyo cabinet ...)
  • 11. CouchDB is NOT ● A relational database. ● A replacement for relational databases. ● An object-oriented database.
  • 12. CouchDB is ● OpenSource Database ● RESTful API ● Schema-less document store (document in JSON format) ● Multi-Version-Concurrency-Control model ● User-defined query structured as map/reduce ● Incremental Index Update mechanism ● Multi-Master Replication model ● Written in Erlang
  • 13. Let's give it a try Ubuntu 9.10 already uses couchdb (all POSIX systems supported) Install the database server : $sudo apt-get install couchdb
  • 14. Test installation
  • 15. CouchDB port 5984
  • 16. CouchDB Management interface (Futon)
  • 17. Create database test
  • 18. Firebug
  • 19. Creating a document with jQuery // server respond with JSON also : // {"ok":true, "id":"323409622afb6477e7108684785256b8", "rev":"1-3182c819b0f98858c54ad920d6c44498"} // including the document id and revision, and a confirmation variable ok=true
  • 20. How to request this document ? // response is also in JSON : // {"_id":"323409622afb6477e7108684785256b8", "_rev":"1-3182c819b0f98858c54ad920d6c44498", "Name":"Makkah", "Zip":21955}
  • 21. What about updating ? // notice in the response we have revision changed to 2 // {"ok":true, "id":"323409622afb6477e7108684785256b8", "rev":"2-03779debc847f783493a69e61bd98560"}
  • 22. What about creating a view ? // Server respond with {"ok":true, "id":"_design/render", "rev":"1-f95a9b997f1081043fda1a34be76c47e" } http://127.0.0.1:5984/test/_design/render/_show/code/480f17c996bcbd174ac64b976de47f79
  • 23. Easy ?!
  • 24. Why CouchDB ● Easy to use data storage (NoSQL) ● Easy to integrate with web applications : JavaScript, JSON ● Scalability for large web applications : Incremental Replication, bi-directional conflict detection and management ● Query-able and index-able ● Offline by default
  • 25. Who's using CouchDB ?
  • 26. Relax
  • 27. Ubuntu One Ubuntu : 10 million desktops worldwide
  • 28. Lounge proxy-based partitioning/clustering framework
  • 29. Mozilla Raindrop New messaging platform built on top of CouchDB
  • 30. Thank you
  • 31. Read more ... ● http://couchdb.org ● http://planet.couchdb.org ● http://horicky.blogspot.com/2008/10/couchdb-imple ● http://jan.prima.de ● http://damienkatz.net/ ● http://jchrisa.net
  • 32. Questions ?

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