Announcement of Reliability focused 147th DevClub.lv

HI!

We all want our systems to be fast and reliable — but what does reliability really mean?
At our newest meetup, we’ll go deep into the layers that make it possible: from runtime internals and microservices design to real-world reliability practices from Google-scale systems.

You are welcome to Reliability focused event on Thursday, October 23, 18:30, at GoCardless office – Marijas iela 2a, Novira Plaza, entrance “East”, 3rd floor.

Please, register here!

Agenda for Reliability focused 147th DevClub.lv

• Dmitrijs Zubriks from GoCardless will give a talk “What your language runtime doesn’t tell you about threading”
  This session unwinds the layers of Ruby MRI to reveal what really happens beneath a programming language’s abstractions. Using a simple thread creation call as a starting point, the talk dives into CRuby’s internals with an outlook at the underlying machinery in action.
  The entire execution path will be traced, beginning with a single line of code, following the process as it’s transformed into bytecode, creates a native OS thread, and interacts with the VM’s core scheduling components.
  Attendees will gain an understanding of how threads are managed at the system level, how the Global VM Lock coordinates execution, and how language runtimes interact with the operating system behind the scenes. While the talk uses CRuby as an example, the concepts apply to most language runtimes with an interpreter lock, and will provide insights into how high-level abstractions map to system-level operations.
  (Language – English)
  Tags: Ruby, CRuby, MRI, Concurrency, Performance, Systems Programming, Runtime Internals
  
  Dmitrijs is a Principal Software Engineer at GoCardless with more than 15 years of experience spanning DevOps, Programming, and Performance Optimizations. He leads technical initiatives and specializes in diving deep into system internals and understanding how systems work beneath the abstractions.

• Aleksejs Truhans from Google will give a talk titled “Why is my app SLOw? Defining reliability in platform engineering”
  Platform engineering is all fun and games until platform customers start complaining about their apps running slowly. Is it the app code or the platform? This talk looks at how Google’s Serverless SRE team detects platform-level latency regressions before users, measures the impact of regressions, and tracks performance over time. We’ll discuss the limitations of SLOs in this context and how to take a statistical approach that gives a customer-centric picture of the performance of our platform instead.
  (Language – English)
  Tags: SLOs, Reliability, SRE
  
  Aleksejs has 28 years of experience in engineering and leadership roles, and currently is an SRE team manager at Google.

• Oleg Anastasyev from 01.tech will give a talk “Building Efficient and Reliable Microservices”
  Building a large microservices infrastucture can be a challenging task, especially when its is loaded with hundreds of thousands requests per second, each of them shouldd be served with as low latency as possible.
  In this talk we’ll explore the approach to build services as stateful applications – they store their data locally, embedding a Cassandra database into the application’s JVM process. This challenges the usual way of building applications – a stateless microservice with a separate remotely accessible database cluster.
  In this talk Oleg will try to cover the advantages of stateful vs stateless microservices, discuss how statefulness affects reliability and accessibility of services and how it helps to build faster applications. We’ll go step-by-step through building a stateful application service, delving into its architecture, major components as well as significant challenges and their solutions.
  (Language – English)
  
  Oleg is a Chief Engineer at 01tech. He is a technical leader, architect and developer with more than 17 years of professional hands-on experience in IT.

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