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I'm a seasoned Software Engineer with over half a decade of experience shaping the world of software development. My passion is anchored in writing code that is not just efficient, but also elegant and clean. An advocate for continuous improvement, I am forever on the hunt for the most cutting-edge developments in our dynamic industry.
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In this blog series, we'll explore microservices: from modeling to splitting the monolith, communication styles, CI/CD, and effective testing strategies. Join us for an enlightening journey!
Spring Boot has made building microservices very popular due to its simplicity and productivity boost. When working with microservices, service discovery is a crucial part. Netflix Eureka is one such service discovery server that integrates smoothly ...
In the past few months, I've had a lot of discussions with fellow tech leaders but also friends who work in tech. All of them encounter different challenges in their daily work. However, some stuff stands out and I have this idea to create a story wi...
19th of July, Friday morning's events serve as a stark reminder of the critical importance of best practices and quality standards. CrowdStrike, a leading cybersecurity company valued at around $80B, had a huge outage because of a failed global softw...
I've genuinely tried to extract the best from SCRUM, be it trying Scrum by the book, or mixing it with a sprinkle of Kanban. It is just not proving to me that it does what it says it does... I know this topic is widely debated, and many other tech le...
Achieving operational excellence is a goal many organizations strive for. This pursuit often leads to the adoption of methodologies designed to streamline processes, boost efficiency, and enhance productivity. Among these, Continuous Delivery and LEA...
This will be fun! Let's start with something I experienced not too long ago. Imagine you're working on a crucial project with tight deadlines. You're heavily relying on an online collaboration tool. Suddenly, there's a server outage. But instead of c...
I’ve often encountered the challenge of scaling a system. When you’re dealing with the ever-increasing demands on modern systems, it's important to ensure that your architecture can handle the lincreased load. In this blog post, I'll guide you through the four essential axes of scaling: Vertical Scaling, Horizontal Scaling, Data Partitioning, and Functional Decomposition.
Also known as "Scaling Up," vertical scaling involves increasing the resources of a single server, such as CPU, memory, or disk storage. This can be visualized as adding more power to your existing hardware.
Example: Let's assume your application is running on a server with 4GB of RAM and an Intel i5 processor. When the load increases, you might upgrade it to 16GB of RAM and an Intel i9 processor.
Pros:
Simple to implement
No major architectural changes needed
Cons:
Hardware limits – you can only upgrade to a certain point
Potentially more expensive
Single point of failure
Contrary to vertical scaling, horizontal scaling, or "Scaling Out," means adding more machines to your system and distributing the load among them.
Example: Think of a popular e-commerce website during a Black Friday sale. The website might normally run on five servers, but during the sale, they scale out to 20 servers to handle the increased traffic.
Pros:
Highly scalable
Redundancy, as failure of one server doesn't bring the system down
Cons:
Complexity in managing multiple servers
Potential increase in network latency
Data Partitioning, or as often called "Sharding", requires splitting a database into smaller, more manageable pieces, and distributing them across multiple servers or clusters. This way, each shard acts as an independent database.
Example: A global social media platform may partition data by geographic region. User data for North America could be in one set of shards, Europe in another, and Asia in yet another. This can reduce query latency as the data is closer to where it is being accessed.
Pros:
Improved performance and response times
Allows for horizontal scaling of the database
Cons:
Increased complexity in data management
Challenges with transactions spanning multiple partitions
Functional Decomposition is at the heart of microservices architecture. It involves breaking down a monolithic application into smaller, independent services that communicate through APIs. Each service is responsible for a specific functionality.
Example: An e-commerce platform can be decomposed into multiple services such as User Management, Product Catalog, Order Management, and Payment Processing. Each service can be developed, deployed, and scaled independently.
Pros:
Enhanced scalability as services can be scaled independently
Faster development cycles
Isolated failures
Cons:
Increased complexity in terms of service communication
Data consistency challenges
Scaling is a vital part of systems architecture. Depending on the requirements, you might end up using one or more of these scaling techniques. As a rule of thumb, a well-architected software should be able to handle increases in load without compromising on performance or reliability. Understanding the characteristics of Vertical Scaling, Horizontal Scaling, Data Partitioning, and Functional Decomposition helps in making informed decisions that pave the way for the scalability and robustness of your application.
Remember that there isn't a one-size-fits-all solution. You may need to use a combination of these scaling strategies. For instance, in a microservices architecture, you might use Functional Decomposition to break down the application into smaller services, Horizontal Scaling to manage the load across multiple servers, and Data Partitioning to efficiently manage data across different geographical locations.
