Jonas Bonér, CTO of LightBend and creator Akka, discusses using Akka when developing distributed systems. He talks about the Actor Model, and how every Microservice needs to be viewed as a system to be successful. 

Why listen to this podcast:

 - Akka is JVM-based framework design for developing distributed systems leveraging the Actor Model - an approach for writing concurrent systems that treat actors as universal primitives and the most successful model with abstraction has been streaming
 - Circuit breakers in Akka are a backup and retry policy; they protect you by capturing failure data and allow you to roll back 
 - Every Microservice needs to be viewed as a system, it needs to have multiple parts that run on different machines in order to function and be fully resilient - thus is a Microsystem
 - Two different trends have emerged when it comes to hardware and environments: one is the trend toward Multi-core, the is a movement toward virtualized environments and the cloud
 - Saga pattern of managing long running transactions in a distributed system fits very well with messaging style architectures

Notes and links can be found on: http://bit.ly/2kwB2eB

Akka
The Actor Model
When Akka and the Actor Model is the perfect choice
Circuit breakers patterns in distributed systems
Two trends toward Multi-core
Reactive Manifesto
Event Driven vs. Message Driven
Reactive Programming and Streams
Microliths to Microsystems
What do you have to get right before you start trying to deploy a distributed systems?
Working with ML / AI at Lightbend to understand tracing through distributed system
Saga Pattern

More on this:
Quick scan our curated show notes on InfoQ http://bit.ly/2kwB2eB

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Show Notes

Jonas Bonér on the Actor Model, Akka, Reactive Programming, Microservices and Distributed Systems

ROS is the Robotic Operating System. It’s been used by thousands of developers to prototype and create a robotic application. ROS can be found on robotics in warehouses, self-driving car companies, and on the International Space Station. Louise Poubel is an engineer working with Open Robotics. Today on the podcast, she talks about what it takes to develop software that moves in physical space, including the Sense, Think, Act Cycle, the developer experience, and architecture of ROS.

Why listen to this podcast:

 - Writing code for robot development, you use the Sense, Think, Act Cycle.
 - ROS is an SDK for robotics. It provides a communication layer that enables data to flow between nodes that handle sensors, logic, and actuation.
 - ROS has two versions and has been around for twelve years. ROS 1 was entirely implemented in C. ROS 2 offers is a common C layer with implementations in many different languages, including Java, JavaScript, and Rust.
 - Released on a six-month cadence, Dashing was the latest release (May 2019). Previous releases were supported for one year, Dashing is the first LTS and will be supported for two years.
 - ROS 2 builds on top of the standard Data Distribution Service (DDS) that you find in mission-critical systems like nuclear power and airplanes.
 - Simulation is an important step in robotics. It allows you to prototype a system before deploying to a physical system.
 - Rviz is a three-dimensional visualizer used to visualize robots, the environments they work in, and sensor data. It is a highly configurable tool, with many different types of visualizations and plugins. It allows you to put together all your data in one place and see it.

More on this: Quick scan our curated show notes on InfoQ https://bit.ly/2ZbOvrO
You can also subscribe to the InfoQ newsletter to receive weekly updates on the hottest topics from professional software development. bit.ly/24x3IVq

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Louise Poubel on the Robotic Operating System

Software engineers, architects and team leads have found inspiration to drive change and innovation in their team by listening to the weekly InfoQ Podcast. They have received essential information that helped them validate their software development map. We have achieved that by interviewing some of the top CTOs, engineers and technology directors from companies like Uber, Netflix and more. Over 1,200,000 downloads in the last 3 years.

Louise Poubel on the Robotic Operating System

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