Slides - Intro to Akka.Cluster

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Intro to Akka.Cluster

Andrew Skotzko

Co-Founder, Petabridge

@askotzko

http://twitter.com/petabridge


http://petabridge.com/



















Introduction to Clustering

• What is a cluster?

• What does clustering give me?

• How do I enable clustering?

• How do I actually use clustering?








What is a cluster?








Network View of a Cluster








What is a "Cluster?"








Akka.Cluster brings clustering

to Akka.NET








Benefits of Clustering

• Elastic

• Recover from failure

• Easy microservices

And the best part…








No Code Changes!








Akka.Cluster HOCON








NOTE: All nodes in an

Akka.NET Cluster must have

the same ActorSystem name.








When do we use clustering?








Clustering Examples








How do clusters form?








Initial State








Seed Node: Initial, well-known

nodes contacted by nodes

attempting to join the cluster








Lighthouse - Dedicated Seed

Node for Akka.NET• Never needs to be

upgraded*

• Configurable

• Low resource

consumption








Joining the Cluster








Leader Election








Ring Formation








How do I enable clustering?








How to Enable Akka.Cluster








Simple Cluster Sample








What makes this all possible?








Location Transparency








Location of Actor in Cluster

Doesn't Matter








How do I actually use

clustering?








Running Multiple Akka.NET

Apps in a Cluster

(Microservices)








Cluster Roles








Roles - WebCrawler Sample








Demo!*

*fingers crossed








See WebCrawler for yourself








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Slides - Intro to Akka.Cluster