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Upgrading a database is the stuff that nightmares are made of, especially when it comes to Amazon Web Services (AWS) Relational Database Service (RDS). It’s like trying to change a tire on a car that’s driving down the highway at 100 miles per hour! AWS RDS provides managed relational databases as a service, making it easier for businesses to set up, oper... Read More...
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Go claims itself as an object oriented programming language. Of course it is. But developers who came from Java or C#, would realise that OOPS in Go is not same as other languages. Let’s see how Golang handles Inheritance. Read More...
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On April 3, 2022, I successfully completed the requirements to be recognized as a Hashicorp Vault Associate. Read More...
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Different types cloud designs can be adopted based on the needs of the organization. For example, a hybrid cloud is a combination of both Google cloud and on-premise cloud. A multi cloud is a combination of Google cloud and AWS duplicating the services. Cloud agnostic is the key in multi cloud design. A poly cloud is a combination of Google cloud and AWS ... Read More...
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On August 16, 2021, I successfully completed the requirements to be recognized as a Microsoft Certified: Azure Solutions Architect Expert. I wanted to share my experience around preparing for the exam and the challenges. Read More...
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Transient faults are temporary failures that happen in a system for a short period. After some time it recovers automatically without any human intervention. For example, consider you’re actually consuming a particular service, and the service might not be available, it might be very busy at that moment. And it might return you a failure response. After s... Read More...
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Isolation is the process of containing the components in a system so that any failure that happening to one part of the system wouldn’t propagate to the other part of the system. So basically, we have to contain the failures in a specific region within the system. So this concept can be achieved with the pattern called bulkhead pattern. Read More...
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Redundancy is one of the common approach to provide resiliency to a system. So it means you’re actually duplicating the system components. So that in case if one component fails, the other can take the responsibility. Redundancy can be divided into two types, one is active-passive and another one is active-active. In case of active-passive one workload wi... Read More...
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A software system is a collection of several components connected to each other. Networking is crucial in any software system. It’s highly important in system design to plan and implement, how the different hardware/virtual components connected to each other. It is also important to understand the difference between private and public networks. A private ... Read More...
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All these days, web development has gone through several changes and improvements. Days are gone, when HTML, CSS and JS are hand-curated and deployed into a static storage server through FTP. With that approach, each HTML file might represent a web page and share common stylesheets and scripts. The approach sounds legacy and it is way outdated compared to... Read More...
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I started practising Google cloud platform couple of years back, working mostly with Google Kubernetes engine and other few services like compute engine, networks and firewalls. Though I had a considerable amount of experience in software development, cloud computing was one of my new areas to explore. During this period I had the chance to work with AWS ... Read More...
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NGINX is an open-source web server that powers more than 400 million websites. In this article, I try to explain some of the below core concepts of NGINX using real-life scenarios. Read More...
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GCP Load balancers are the most interesting topic when you start learning Google Cloud Platform. There are different types of load balancers available and understanding them would help us to decide the right load balancer for the right purpose. These load balancer types are derived from several criteria. In this article, I am going to talk about those dif... Read More...
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Deno is a new runtime for Javascript and Typescript. Deno claims to be the secure runtime and has a built-in typescript compiler. In this article, I would like to focus on the real need for a new runtime for Javascript. NodeJS is the most popular and powerful runtime. Several applications like PayPal, LinkedIn, and Netflix still uses NodeJS. There are sev... Read More...
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Gatsby is an open source framework. And it used to build blazing fast websites using modern technologies like React and GraphQL. Gatsby is recently becoming the default solution to build static websites.The problem Read More...
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Have you ever worked with a system, where it often end up in an unexpected state? For example, how about displaying both play and pause button at the same time in a media player. What about both red and green lights glowing at the sme time or an orange light turns to green in a traffic light system. These unexpected states are usually the result of poor h... Read More...
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Years back in 2013, I was working in a Hospitality management system. The application was used by front desk staff in star hotels. It helps to check in or check out rooms, book appointments and offer several other services. The entire application was written C#. Yes, you hear it right - the whole application including the user interface was written in C#.... Read More...
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In programming memory can be categorised into two - Static and dynamic memory. When memory size of the variables are known at compile time, we call that as static memory. For example primitive data types like int, floats and arrays are fixed size. Fixed size values usually sits in Stack. When a function start executing, all local variables get allocated i... Read More...