Using Event-Driven Architectures with Cassandra

Using Event-Driven Architectures with Cassandra SlideShare Explore You Successfully reported this slideshow.Using Event-Driven Architectures with CassandraUpcoming SlideShareLoading in …5× 0 Comments 2 Likes Statistics Notes Radha Krishna Proddaturi , Principal Software Engineer at Coupons.com at Coupons.com Alif Ruliarso , Tech-focused delivering innovative technology and products at Bridestory No DownloadsNo notes for slideC* users should care about their application architecture for the simple reason that C* isn’t magic and can’t do everything. Cassandra can’t solve the problem of real-time correlation or reaction at the application layer. Developers have to solve these problems themselves, and Cassandra is just one part of the solution.Event Stream Processing and CEP play nicely with Cassandra, and that’s what we’ll be focusing onIntentionally small and stupid 1. @petabridge Petabridge.comEvent-Driven Architectures withCassandraAaron Stannard, CTO & Cofounder PetabridgeDataStax MVP 2015 2. @petabridge Petabridge.comCrash Course in EDA 3. @petabridge Petabridge.comSuccessful Product 4. @petabridge Petabridge.comStruggling Business 5. @petabridge Petabridge.comA Radical New Product 6. @petabridge Petabridge.comAllow our customers to startconversations with specifictypes of users. 7. @petabridge Petabridge.comHad to be done in real-time forbest results. 8. @petabridge Petabridge.comPrototype: HTTP + Database 9. @petabridge Petabridge.com(Read after Write) 10. @petabridge Petabridge.comTheory 11. @petabridge Petabridge.comReality 12. @petabridge Petabridge.comBreakthrough! 13. @petabridge Petabridge.comI had STATEFUL, REACTIVE,STREAM PROCESSINGproblem! 14. @petabridge Petabridge.comImplementation:HTTP -> EDA -> C* 15. @petabridge Petabridge.comWhy Do We Care About EDA? 16. @petabridge Petabridge.comDatabases Aren’t Magical 17. @petabridge Petabridge.comEvent-Driven ArchitectureConcepts 18. @petabridge Petabridge.comKey Terms• Event – a significant change in “state”• Message – a notification of an event• Emitter – detect, gather, transfer events• Sinks – react to events immediately• Channels – conduit between emitters andsinks 19. @petabridge Petabridge.comGoals & Benefits• Extreme decoupling• Easily distributed• Inherently asynchronous and concurrent 20. @petabridge Petabridge.comEDA Styles• Simple Event Processing• Event Stream Processing• Complex Event Processing (CEP) 21. @petabridge Petabridge.comEvent Stream Processing w/FSMs 22. @petabridge Petabridge.com 23. @petabridge Petabridge.com 24. @petabridge Petabridge.com 25. @petabridge Petabridge.comCQL SchemaCREATE TABLE IF NOT EXISTS FSMState(persistence_id text,state_id int,state_data blob,PRIMARY KEY (persistence_id, state_id)) 26. @petabridge Petabridge.comEvent Sourcing with C* 27. @petabridge Petabridge.com 28. @petabridge Petabridge.com 29. @petabridge Petabridge.comEDA + C* Tips and Tricks• Large number of small sinks works best• Define simple, reusable journals andsnapshots• C* == durable backup, App = singlesource of truth• TTL everywhere your business domainsupports it 30. @petabridge Petabridge.comHave questions? Ask us!http://petabridge.com/ Recommended Visual Aesthetics for ElearningOnline Course - LinkedIn Learning College Prep: Writing a Strong EssayOnline Course - LinkedIn Learning Test Prep: GREOnline Course - LinkedIn Learning Realtime Data Pipeline with Spark Streaming and Cassandra with Mesos (Rahul K...DataStax Forrester CXNYC 2017 - Delivering great real-time cx is a true craftDataStax Academy Introduction to DataStax Enterprise Graph DatabaseDataStax Academy Introduction to DataStax Enterprise Advanced Replication with Apache CassandraDataStax Academy Cassandra on Docker @ Walmart LabsDataStax Academy Cassandra 3.0 Data ModelingDataStax Academy Cassandra Adoption on Cisco UCS & Open stackDataStax Academy About Blog Terms Privacy Copyright LinkedIn Corporation © 2018 Public clipboards featuring this slideNo public clipboards found for this slideSelect another clipboard ×Looks like you’ve clipped this slide to already.Create a clipboardYou just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips. Description Visibility Others can see my Clipboard