microservices fault tolerant

November 12, 2019

Circuit Breaker Design Pattern Using Netflix Hystrix

Check out this circuit design!

You may also like: Design Patterns in Java: Singleton

1. Introduction

A circuit breaker is an electronic/electrical component that makes a circuit open so that no current can flow through it. It is used to prevent the damage caused by excess current from an overload or short circuit.

Generally, fuses are considered to be a circuit breaker, but there is a subtle difference between circuit breakers and fuses. Fuses operate once and must be replaced but the circuit breaker can be reset to resume the normal operation.

January 17, 2019

Microservices and the Saga Pattern, Part 1

Microservices are not new in the market, they have been a part of our day to day life for a while now, so here in this post, I would like to share with you my understanding of what microservices are and what the Saga Pattern is, which is widely used with the microservices. We will start with what exactly we mean when we say: (i) we need a microservice, (ii) what it means to be reactive, and then (iii) dig into the concept of Saga patterns, with respect to a distributed system along with an easy to understand real-life example.

So let’s get started.

Packages for Store Routines in MariaDB 11.4
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MariaDB 11.4 introduced many advanced features. One that grabbed my attention is the general support of packages for stored routines. Although this was previously available by activating the Oracle compatibility mode, now the feature is available gener... […]
Maintain Chat History in Generative AI Apps With Valkey
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A while back I wrote up a blog post on how to use Redis as a chat history component with LangChain. Since LangChain already had Redis chat history available as a component, it was quite convenient to write a client application. But, that's not the same... […]
Knowledge Graph Enlightenment, AI, and RAG
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In the previous edition of the YotG newsletter, the wave of Generative AI hype was probably at its all-time high. Today, while Generative AI is still talked about and trialed, the hype is subsiding. Skepticism is settling in, and for good reason. Repor... […]
Building an Effective Zero Trust Security Strategy for End-To-End Cyber Risk Management
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You've probably heard a lot about zero-trust security lately, and for good reason. As we move more of our applications and data to the cloud, the traditional castle-and-moat approach to security just doesn't cut it anymore. This makes me come... […]
Phased Approach to Data Warehouse Modernization
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A modernized database will help you focus on building innovative solutions rather than investing your time and effort in managing these legacy systems. Based on the scale of your existing data warehouse processes or jobs, it can be an enormous task to ... […]