RCOUCH

Benoît Chesneau will present RCOUCH a document oriented database for offline-first applications.

Benoît Chesneau is a French web craftsman, living near Paris. He has years of experience in building small and big-scale database backend websites. He is the founder of a company building innovative web services and open-source applications. Benoît Chesneau is also the founder of the Refuge and RCOUCH projects and the author of Gunicorn and multiple other opensource projects in Python and Erlang.

Transcript

1. The database for offline-first applications http://rcouch.org Erlang Paris - June 2015
2. • A CouchDB flavour • View changes and view-based replication • Easy to extend • Correctness • Performant About
3. https://github.com/rcouch/rcouch/wiki/rcouch-hooks
5. why Erlang?
6. • Building complex system is easy • Resilience • Concurrency A good ADN
7. P P P P Processes are solated
8. P P P P Failure The system continue to work
9. P P P P Supervise & Recover Detect failures and relauch
10. a good citizen
11. • View engine, couchapps in JS… • Or any language. • A language using the Erlang VM is quite easy • 2.0 will have support of LFE, LUA, Elixir A good ADN
12. A good ADN function(doc) { emit(doc._id, null); }
13. • View engine, couchapps in JS… • Or any language. • A language using the Erlang VM is quite easy • 2.0 will have support of LFE, LUA, Elixir A good ADN
14. • In rcouch a language is viewed as a process • Input/Output protocole • building elixir: rebar(3) plugin • same for other languages • shipped in a release or loaded How: M/R & COUCHAPPS
15. TO THE NEXT STEP
16. KEEP THE COUCH
17. • Cluster Of Unreliable Commodity Hardware • Decentralised • works in condition when we can’t achieve the “quorum” A good ADN
18. ? @benoitc