Software developers use a variety of methodologies, tools, architectural designs, and best practices to create high-quality software or systems. One of the prevalent architectural pattern types that various businesses use is a technology known as microservice.
The microservices architecture is a framework that divides an application into smaller services, each of which typically runs a different process and maintains a separate database. The idea of a services hierarchy predates the development of contemporary web applications and is therefore older than containers. Such a method has become a best practice over time.
One of the most important choices for producing high-quality, high-performance, and optimized solutions is choosing between microservices vs monolithic architecture for the application. Not all architecture is created equal, which is similar to how not all applications are the same. For sophisticated and dynamic applications, microservices are more advantageous. But for those who do not have the right skills in these technologies, adopting microservices will be a huge challenge. In the end, it is important to choose the most effective strategy.
The complexity of managing services and preserving data integrity increases as the number of services increases. This makes microservices architecture one of the best architectural patterns. However, it also makes the architecture one that presents some of the most prevalent difficulties.
Challenges of Using Microservice Architecture
The following are the most typical issues that arise while employing microservices to manage distributed systems.
- Design complexity
- Consistency of data
- Complexity of operations
- Needs collaborative expertise
Design complexity. Unlike monolithic apps, designing microservices is more challenging for businesses. For first-time microservice designers, it may be hard to choose the size, connection points, and framework for service integration. For microservices to be designed, it is necessary to make them inside a context that is bounded. Hence, each of these microservices should be able to specify, capture, and have a particular duty.
Consistency of data. Although there are several frameworks available for creating microservices, consistency remains a major challenge. The distributed nature of this data management strategy presents difficulties. The same piece of data could redundantly appear in many data storages. For example, data may be kept in connection with a transaction and subsequently moved to another location for analytics, reporting, or archiving.
Traditional data management methods cannot be used to enforce data relationships that cover several services. The system as a whole wouldn’t be in a consistent condition until each microservice has finished its task.
Security. Microservices are frequently deployed across multi-cloud environments. This increases risk and leads to a loss of visibility and control over application components, which, in turn, creates more weak spots. Given this, it is challenging to ensure the integrity and confidentiality of user data.
Testing. Although employing microservices to build distributed systems has many benefits, testing these apps poses special difficulties. Considering how each microservice has an independent nature, each one needs to be tested independently as well. On top of this, teams also need to consider the integration and interdependence while conducting testing.
Complexity of operations. Although complexity is difficult to quantify, the overall idea of it covers a large number of pieces and components that interact to form a system. Many famous institutions conduct research on complex systems, and microservices architecture is an ideal example of a complicated system.
Because the application is chunked down into smaller services with various hosts and deployments, it is important to have all components coordinated with each other. This is necessary for operations to run seamlessly.
Moreover, if one microservice fales, the entire system can get affected. Hence, it is important to ensure that all microservices are tough enough to withstand external and internal difficulties.
Communication. Microservices are tiny standalone services that can be independently deployed and interact with one another. To accomplish this, infrastructure layers must be configured to allow resource sharing between services. The poor setting may result in increased latency and decreased call speed when using various services.
Needs collaborative expertise. The majority of transitional failures of a microservices architecture are brought on by underqualified design and development teams. If the team does not have the necessary experience dealing with distributed architectures, the transition to microservices won’t be successful. They should have the capacity to conceptualize distributed application design and interaction patterns.
Maintenance. In order to guarantee that microservices operate to their full potential, maintenance should be continuously executed. If servers are not maintained, they may be at risk. Moreover, even if only one service fails, the entire system can get affected. Developers need to monitor and maintain services regularly to guarantee their availability.
Microservices undoubtedly have tremendous advantages, particularly as software becomes more complicated and the intended time to market keeps growing shorter. Numerous organizations see the advantages of its adoption, and the numbers support its value. The global market for microservices architecture will further grow in the future according to research.
Nevertheless, professionals are needed on a team to consider the aforementioned difficulties in order to successfully complete the adoption. While it may depend on viability and the business case, moving away from monolithic apps may be highly advantageous for a company.