7 Key Benefits of Microservices Architecture


The Major question that arrives while building Microservices is how beneficial when compared to the Monolith system. Most of them have a standard set of questions, such as

  • How fast can we develop microservices?
  • How difficult will it be to build a microservice compared to Monolith
  • Is it easy and faster to learn for any developer?
  • How easy is it to scale Microservices?
  • How easy is it to maintain Microservices over time?

Let’s first take a look at Key benefits of Microservices Architecture which answers all the above questions.

Benefits of Microservices Architecture

1. Scalability

In 2008 Netflix had a major service failure due to increased demand, and it wasn’t easy to scale their Monolith system. They had experienced a 3-day service failure which led to business disruptions.

In Monolith, the challenge always is you need to scale the entire application, which would always cost hefty. Since each service runs independently, it is easier to add, remove, update or scale individual microservices without impacting the whole system. If the demand increases, you need to scale that service by allocating the processing and memory power.

Usually, in Microservices, the rules are predefined for scaling, and container orchestration tools can automatically scale individual microservices by spinning up new instances and allocating the necessary resources. Once the demand goes down, the service could be scaled down automatically. By scaling only required microservices, the organization can save a lot of money spent on Cloud hosting.

Scalecube - Benefits of Microservices Architecture
Scale Cube

2. Parallel and Faster Development

If you have a distributed team across various locations then choosing Microservices architecture could be a blessing. Monolith systems are much difficult to execute if multiple teams are working and spread across various locations.

The Core principle of microservices is decoupling the large application into small, independent services. Each service can be powered by a small, hyper-focused team that is responsible for its own service delivery and can adhere to the timelines.

It also gives the flexibility to develop each service in different technology stacks depending on what suits that service best and delivers it efficiently. If you are developing a very large solution ensure to consider Microservice architecture rather than Monolith.

3. Fault tolerance and Increased Resiliency

Since microservices architecture isolates its services, it also isolates error. When one of the Microservices fails to communicate, or it’s down, ultimately it won’t bring down the entire system, as services will be contained in that one area while other Microservices work efficiently.

This type of fault isolation means the entire application remains largely unaffected by the failure of a single service, resulting in improved service availability and uninterrupted user experience.

4. Programming Language and Technology Agnostic

In the case of Microservices architecture, Developers always has the flexibility to choose their programming language and the tech stack that best fits the need of the project and the skillsets of your team. You can also choose your own data storage technology for each of the services you build.

Microservices can communicate to different technology stacks as well as a programming language. In short, microservices are technology agnostic.

5. High Quality Development and Higher Security

Each Development team will be focused on a single Microservice since the components are decoupled into smaller pieces based on the business capabilities.

Teams will focus on small, well-defined functionality, which improves the quality of the overall code and testing process. It also increases the reliability of the code, and it also makes it easy to manage the issues within the code.

Information security is always a Big concern in enterprise applications. Microservices are meant for higher security. It provides a secure way of communicating between the services internally using service mesh like Istio. Each API can have authentication and authorization, and one can use API Gateway to provide access only to specific users or authorized applications.

Cross-cutting concerns like rate-limiting, quota, circuit break, Distributed tracing, and monitoring in case of issues can be easily achieved in Microservices.

Resiliency and high availability in microservices | Microsoft Docs

6. Greater Business Agility and Support for DevOps

One of the most critical advantages of Microservices would be agility, the ability to iterate into smaller pieces, focused and faster development, and quick release to the market.

Microservices architecture is also compatible with the most effective SDLC process in the software industry and supports CI/CD, Agile, and container methodologies. Microservices bring additional productivity to DevOps by embracing a common toolset that will be used for development and operations.

7. Faster Time to Market

Microservice can be developed parallel with multiple teams and, hence, release faster to market. Even in the case of upgrades, security fixes, the risk is always lesser, and the focus is always on individual service, which causes less overhead and conflicts. Business always gets higher benefits if they go with Microservices architecture.go with Microservices architecture.

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