Earlier this year the book club of our company has studied excellent book:
Martin Kleppmann - Designing Data-Intensive Applications
This is the best book I have read about building complex scalable software systems. 💪
As usually I prepared an overview and mind-map.
Chapter 3:
Data structures: Log-structured. SSTables / LSM-trees (when we don’t update anything but write to the end). A very cool idea of how to store data.
Earlier this year the book club of our company has studied excellent book:
Martin Kleppmann - Designing Data-Intensive Applications
This is the best book I have read about building complex scalable software systems. 💪
As usually I prepared an overview and mind-map.
Chapter 2:
What is data model. Different relations between the data. Relational, Document, Graph data models. Which one is better and when. Schema-on-write, schema-on-read (schemaless). Data locality.
Earlier this year the book club of our company has studied excellent book:
Martin Kleppmann - Designing Data-Intensive Applications
This is the best book I have read about building complex scalable software systems. 💪
As usually (to better learn) I prepared an overview and mind-map.
Chapter 1:
Building blocks of the apps What is Reliability, Scalability and Maintainability. Examples and definitions. Faults and Failures Performance, Load, Latency and Response Time Operability, Simplicity, Evolvability Why you should randomly kill your servers 😅 How Twitter delivers 12,000 tweets per second to 300,000 readers per second.
Golang FINALLY introduces GENERICS (aka templates, aka type parameters) in release 1.18 (in Feb 2022)
I remember the early 2000s when generics where added to C#, and how they were awaited…
These days Go is my favourite language for writing highly-scalable solutions and generics are the key thing I’ve been waiting for. They should significantly simplify design of the apps in some cases.
My mind map with key things you should know:
The book club of our company has chosen a new wonderful book for reading:
Robert Martin - Clean Architecture - a Craftsman’s Guide to Software Structure and Design
Fourth part of the book is about principles of combining components into software systems.
This part is more interesting. It contains:
Overview of components history: Relocatability, Linkers Three principles of Component Cohesion REP: The Reuse/Release Equivalence Principle CCP: The Common Closure Principle CRP: The Common Reuse Principle Three principles of Components Coupling ADP: The Acyclic Dependencies Principle SDP: The Stable Dependencies Principle SAP: The Stable Abstractions Principle I especially enjoyed this chapter because of presented metrics that could be used to measure(!
The book club of our company has chosen a new wonderful book for reading:
Robert Martin - Clean Architecture - a Craftsman’s Guide to Software Structure and Design
👍
Third part of the book is about SOLID principles
Single Responsibility Principle: A module should be responsible to one, and only one, actor. Open-Closed Principle: A software artifact should be open for extension but closed for modification Liskov Substitution Principle: S is a subtype of T if instead of instance of T we can always use an instance of S Interface Segregation Principle: use interfaces to reduce dependency upon changes Dependency Inversion Principle: avoid dependencies on volatile concrete elements I didn’t learn anything new from here (but I am in software engineering for 20+ years already ;).
When you are starting a new software solution need to select a technology for Frontend. There are currently three leading technologies: Angular, React, and Vue.
But how do you choose from them?
Our team has experience with all of them, but usually the choice is made on the basis “who is available from the team and what they prefer”.
I wanted a deeper Pros and Cons comparison, and I found it in great short Udemy course :
The book club of our company has chosen a new wonderful book for reading:
Robert Martin - Clean Architecture - a Craftsman’s Guide to Software Structure and Design
👍
The book is superficial so far. Here’s an overview of the second part:
There are three programming paradigms:
Structured programming - is discipline imposed upon direct transfer of control. Object-oriented programming - is discipline imposed upon indirect transfer of control.
The book club of our company has chosen a new wonderful book for reading:
Robert Martin - Clean Architecture - a Craftsman’s Guide to Software Structure and Design
👍
Here’s an overview of the first part:
The goal of software architecture to minimize the human resources required to build and maintain the required system. Two values of software Behaviour (function) - to satisfy stakeholders’ requirements Structure (architecture) - difficulty of making change should be proportional to the scope, not to the “shape” of the change Ease of change is more important!
There is a known issue in Python - you have to choose between sync and async code models.
And if you are using async code you can call sync code but from that code you CAN’T call async code again.
Why does this problem occur? The event loop used by the async code is already stuck waiting for the result from the sync code. And if you want to call async code now, you cannot reuse the same event loop.
