QCon SF Overview

Conference Tracks

• Over 3 days
• Multiple Tracks each day
• Architecture, Microservices + Containers, JVM, Modern Languages, Web Future Tech, Chaos Engineering + Performance 

Service Mesh

Service Mesh enables:

• Load Balancing
• Circuit Breaker Pattern
• Edge Routing
• Logging and Tracing
• Service Discovery
• Retries

21st Century Languages

• GoLang, Programming language developed by Google. Loosely based on C and comes with a garbage collector with support for Concurrency, Distributed Systems
• Goroutines - lightweight thread of execution
• Docker, Kubernetes, InfluxDB, etcd
• Hyatt - Fake http server for API Gateway testing
• Kotlin - Android Devs, using functional programming with Java 1.6

Slides for the QConSF talk: qconsf slides: https://qconsf.com/system/files/presentation-slides/go_21st_century.pdf

Java Completable Futures

• Holder for storing results for an async call aka Promise
• Evolved from Future - introduced in Java 1.5
• DONT USE IT
• Use RxJava (or Java Streams maybe)

Reddit.com Architecture

• Running on AWS
• NodeJS Frontend
• Backing services in Python + other languages
• Postgres + Memcached, Some Cassandra
• Queueing - Rabbit MQ (and some Kafka)

Chaos Engineering

 Chaos engineering is about  experimenting with your services to ensure system availability.

• Simian Army
• Chaos Monkey
• Chaos Kong

Debugging Containerized Apps

With microservices, we need a unified view to see where are requests are originating and terminating

• Some Splunk Magic and/or New Relic
• Zipkin (Opentracing)
• Squash

https://qconsf.com/system/files/presentation-slides/qcon2017e.pptx

Serverless Functions and debugging

Servlet vs Reactive

• Current Models Servlet 2.x/3.0 for sync
• Servlet 3.1 with Async support
• Project Reactor using Flux/Mono
• RxJava
• Reactive and non-blocking generally do not make applications run faster

Microservices

• Event Driven Microservice
• CQRS
• SAGAS

Advancements in HTTP

Comparison of whats out today:

• HTTP 1.1
• HTTP/2
• SPDY
• QUIC

WebAssembly

• Developed by Mozilla
• Writing and Run bytecode from your browser!
• Running apps with near native speed
• Much Faster Javascript parsing
• Autodesk/Unity3d for games, 3d object modeling

Questions?