RavenDB intro, what it is and how it works plus take a trip inside finstat.sk development kitchen to find out how to solve a practical problem the impractical way.

1. FINSTAT.SK:
THE NOSQL STORY
Marián Vlčák (vlko)
SPONSORED BY: FINSTAT.SK, BRAINHOUSE.SK
@vlkodotnet

2. I am …
 I have MS OS, MS PC, MS Keyboard, MS mouse, MS headphones,
?MS phone?
 even this font is MS designed
 So when I found out, that there is pure managed NoSQL solution
there was no other choice

3. So finstat.sk was born
 Aggregates multiple external sources
 Data processing/monitoring
 200k unique users from Slovakia per month

4. RavenDB
NoSQL

5. THIS IS RAVENDB
But in reality
 CAP theorem problem
 CQRS
ESENT/JET
key/value store
LUCENE.NET
indexing engine
DATA QUERY
by id
All others
QUERIES

6. Indexing
 Simple indexes
 Multimap indexes
 Map/reduce indexes (steps stored in ESENT)
 Search/filters
 Facets
 Updated on fly
 Slow to fully re-compute
 Side-by-side indexing

7. Will it scale?
 Replication
 Master-Master, Master-Slave, all other
 Client side sharding
 Auto-failure switch

8. Developer is a customer - Client API
 LINQ (type support)
 Caching
 Aggressive caching
 Multi-get
 Transactions
 Bulk insert
 Data subscription
 Patching
 Transformers
 Even more

9. We love Ops
 Built-in studio
 Previously Silverlight now HTML5 (DurandalJS based)

10. Personal experience
 Earlier 0.x versions – freezing/performance problems
 2.x – “locate your own bug in source”
 Stable enough 3.0.35xx
 Real performance gain 3.0.36xx (30-40%)
 New versions on the way out

11. Load data sample
All other details at
no cost
=> cache

12. MultiMap/Reduce

13. Fake entities

14. The end
 There is much more to say
 Like safe by default, spatial, bundles, plugins, etc, etc…
QUESTIONS?
@vlkodotnet