2 12-2015 - Cassandra Day LA - Using DataStax Enterprise and Actor Systems for Fault Tolerant, Reliable Systems

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Cassandra and DataStax Enterprise have made it a lot easier to build distributed applications by providing a solid persistence layer that distributes well, is highly available, and comes with an intuitive programming model. So what if you could have all of the nice things DataStax Enterprise provides to you at your application layer too? 1. An intuitive programming model; 2. High availability; 3. Reliability; and 4. The ability to decouple application design from network topology. Well it turns out you can do this easier than ever before using the Actor Model and Akka.NET. This talk explains how. http://getakka.net/ http://petabridge.com/

Technologie

@petabridge Petabridge.com
DataStax Enterprise and Actor
Systems
By Aaron Stannard
Co-Founder and CTO – Petabridge
Co-Founder – Akka.NET

@petabridge Petabridge.com
What do we love about
Datastax Enterprise?

@petabridge Petabridge.com
Intuitive Programming Model
(CQL3)

@petabridge Petabridge.com
Easily Distributed

@petabridge Petabridge.com
Highly Available

@petabridge Petabridge.com
Amazing Conference Swag!

@petabridge Petabridge.com
And more!
• Automatic cluster discovery (drivers)
• Tunable consistency
• Tremendous R/W throughput
• DSE Startup Program

@petabridge Petabridge.com
What if we could have these
nice things in the application
layer too?

@petabridge Petabridge.com
WHAT DO WE WANT?!
• Intuitive programming
model
• High availability
• Reliability
• Decouple application
design from network
topology

@petabridge Petabridge.com
Enter the Actor Model

@petabridge Petabridge.com
Akka.NET: Actor Model in .NET

@petabridge Petabridge.com
Everything is an "actor"

@petabridge Petabridge.com
This is an actor

@petabridge Petabridge.com
Actors work by passing each
other messages

@petabridge Petabridge.com
Message passing in action

@petabridge Petabridge.com
Actors send messages to
addresses

@petabridge Petabridge.com
Actor addresses have location
transparency

@petabridge Petabridge.com
So this means...

@petabridge Petabridge.com
Magic Scaling Sauce!!!

@petabridge Petabridge.com
(High Availability)

@petabridge Petabridge.com
We Can Deploy Actors and
Send Messages Anywhere

@petabridge Petabridge.com
Scaling Out
• Actors can be deployed anywhere
• Special "Router" actors distribute work
• Actors can be easily restarted and
redeployed

@petabridge Petabridge.com
And Can Form Highly Available
Systems

@petabridge Petabridge.com
Automatic Clustering
• Use seed nodes (just like DSE)
• New nodes can join and leave
• Work automatically gets redistributed
(because, routers)

@petabridge Petabridge.com
But That's Not All!
• Persistent Actors
• Cluster Sharding
• And more!

@petabridge Petabridge.com
DSE + Actor Systems...

@petabridge Petabridge.com
In fact, you might already be
using them together...

@petabridge Petabridge.com
Apache Spark: Built on Akka
(JVM)

@petabridge Petabridge.com
Powerful Combinations
• Stream processing
• Event sourcing
• Real-time aggregation and analytics
• Dynamic pricing and other fun e-
commerce problems

@petabridge Petabridge.com
Have questions? Ask us!
http://petabridge.com/datastax

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Sara Mae O’Brien Scott and Tatiana Baquero Cakici, Senior Consultants at Enterprise Knowledge (EK), presented “AI Fast Track to Search-Focused AI Solutions” at the Information Architecture Conference (IAC24) that took place on April 11, 2024 in Seattle, WA. In their presentation, O’Brien-Scott and Cakici focused on what Enterprise AI is, why it is important, and what it takes to empower organizations to get started on a search-based AI journey and stay on track. The presentation explored the complexities of enterprise search challenges and how IA principles can be leveraged to provide AI solutions through the use of a semantic layer. O’Brien-Scott and Cakici showcased a case study where a taxonomy, an ontology, and a knowledge graph were used to structure content at a healthcare workforce solutions organization, providing personalized content recommendations and increasing content findability. In this session, participants gained insights about the following: Most common types of AI categories and use cases; Recommended steps to design and implement taxonomies and ontologies, ensuring they evolve effectively and support the organization’s search objectives; Taxonomy and ontology design considerations and best practices; Real-world AI applications that illustrated the value of taxonomies, ontologies, and knowledge graphs; and Tools, roles, and skills to design and implement AI-powered search solutions.

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What is a good lead in your organisation? Which leads are priority? What happens to leads? When sales and marketing give different answers to these questions, or perhaps aren't sure of the answers at all, frustrations build and opportunities are left on the table. Join us for an illuminating session with Cian McLoughlin, HubSpot Principal Customer Success Manager, as we look at that crucial piece of the customer journey in which leads are transferred from marketing to sales.

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Discord is a free app offering voice, video, and text chat functionalities, primarily catering to the gaming community. It serves as a hub for users to create and join servers tailored to their interests. Discord’s ecosystem comprises servers, each functioning as a distinct online community with its own channels dedicated to specific topics or activities. Users can engage in text-based discussions, voice calls, or video chats within these channels. Understanding Discord Servers Discord servers are virtual spaces where users congregate to interact, share content, and build communities. Servers may revolve around gaming, hobbies, interests, or fandoms, providing a platform for like-minded individuals to connect. Communication Features Discord offers a range of communication tools, including text channels for messaging, voice channels for real-time audio conversations, and video channels for face-to-face interactions. These features facilitate seamless communication and collaboration. What Does NSFW Mean? The acronym NSFW stands for “Not Safe For Work,” indicating content that may be inappropriate for professional or public settings. NSFW Content NSFW content encompasses material that is sexually explicit, violent, or otherwise graphic in nature. It often includes nudity, profanity, or depictions of sensitive topics.

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With more memory available, system performance of three Dell devices increased, which can translate to a better user experience Conclusion When your system has plenty of RAM to meet your needs, you can efficiently access the applications and data you need to finish projects and to-do lists without sacrificing time and focus. Our test results show that with more memory available, three Dell PCs delivered better performance and took less time to complete the Procyon Office Productivity benchmark. These advantages translate to users being able to complete workflows more quickly and multitask more easily. Whether you need the mobility of the Latitude 5440, the creative capabilities of the Precision 3470, or the high performance of the OptiPlex Tower Plus 7010, configuring your system with more RAM can help keep processes running smoothly, enabling you to do more without compromising performance.

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2 12-2015 - Cassandra Day LA - Using DataStax Enterprise and Actor Systems for Fault Tolerant, Reliable Systems

1. @petabridge Petabridge.com DataStax Enterprise and Actor Systems By Aaron Stannard Co-Founder and CTO – Petabridge Co-Founder – Akka.NET

2. @petabridge Petabridge.com What do we love about Datastax Enterprise?

3. @petabridge Petabridge.com Intuitive Programming Model (CQL3)

4. @petabridge Petabridge.com Easily Distributed

5. @petabridge Petabridge.com Highly Available

6. @petabridge Petabridge.com Amazing Conference Swag!

7. @petabridge Petabridge.com And more! • Automatic cluster discovery (drivers) • Tunable consistency • Tremendous R/W throughput • DSE Startup Program

8. @petabridge Petabridge.com What if we could have these nice things in the application layer too?

9. @petabridge Petabridge.com WHAT DO WE WANT?! • Intuitive programming model • High availability • Reliability • Decouple application design from network topology

10. @petabridge Petabridge.com Enter the Actor Model

11. @petabridge Petabridge.com Akka.NET: Actor Model in .NET

12. @petabridge Petabridge.com Social Proof

13. @petabridge Petabridge.com Everything is an "actor"

14. @petabridge Petabridge.com This is an actor

15. @petabridge Petabridge.com Actors work by passing each other messages

16. @petabridge Petabridge.com Message passing in action

17. @petabridge Petabridge.com Actors send messages to addresses

18. @petabridge Petabridge.com Example

19. @petabridge Petabridge.com Actor addresses have location transparency

20. @petabridge Petabridge.com So this means...

21. @petabridge Petabridge.com Magic Scaling Sauce!!!

22. @petabridge Petabridge.com (High Availability)

23. @petabridge Petabridge.com We Can Deploy Actors and Send Messages Anywhere

24. @petabridge Petabridge.com Scaling Out • Actors can be deployed anywhere • Special "Router" actors distribute work • Actors can be easily restarted and redeployed

25. @petabridge Petabridge.com And Can Form Highly Available Systems

26. @petabridge Petabridge.com Automatic Clustering • Use seed nodes (just like DSE) • New nodes can join and leave • Work automatically gets redistributed (because, routers)

27. @petabridge Petabridge.com But That's Not All! • Persistent Actors • Cluster Sharding • And more!

28. @petabridge Petabridge.com DSE + Actor Systems...

29. @petabridge Petabridge.com In fact, you might already be using them together...

30. @petabridge Petabridge.com Apache Spark: Built on Akka (JVM)

31. @petabridge Petabridge.com Powerful Combinations • Stream processing • Event sourcing • Real-time aggregation and analytics • Dynamic pricing and other fun e- commerce problems

32. @petabridge Petabridge.com Have questions? Ask us! http://petabridge.com/datastax

2 12-2015 - Cassandra Day LA - Using DataStax Enterprise and Actor Systems for Fault Tolerant, Reliable Systems

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