Book Image

Solutions Architect's Handbook

By : Saurabh Shrivastava, Neelanjali Srivastav
Book Image

Solutions Architect's Handbook

By: Saurabh Shrivastava, Neelanjali Srivastav

Overview of this book

Becoming a solutions architect gives you the flexibility to work with cutting-edge technologies and define product strategies. This handbook takes you through the essential concepts, design principles and patterns, architectural considerations, and all the latest technology that you need to know to become a successful solutions architect. This book starts with a quick introduction to the fundamentals of solution architecture design principles and attributes that will assist you in understanding how solution architecture benefits software projects across enterprises. You'll learn what a cloud migration and application modernization framework looks like, and will use microservices, event-driven, cache-based, and serverless patterns to design robust architectures. You'll then explore the main pillars of architecture design, including performance, scalability, cost optimization, security, operational excellence, and DevOps. Additionally, you'll also learn advanced concepts relating to big data, machine learning, and the Internet of Things (IoT). Finally, you'll get to grips with the documentation of architecture design and the soft skills that are necessary to become a better solutions architect. By the end of this book, you'll have learned techniques to create an efficient architecture design that meets your business requirements.
Table of Contents (18 chapters)

Synchronous versus asynchronous replication

Synchronous replication creates a data copy in real time. Real-time data replication helps to reduce the RPO and increase reliability in the event of a disaster. However, it is expensive as it requires additional resources in the primary system for continuous data replication.

Asynchronous replication creates copies of data with some lag or as per the defined schedule. However, asynchronous replication is less expensive as it uses fewer resources compared to synchronous replication. You may choose asynchronous replication if your system can work with a longer RPO.

In terms of database technology such as Amazon RDS, synchronous replication is applied if we create RDS with multiple availability zone failover. For read replicas, there is asynchronous replication, and you can use that to serve report and read requests.

As illustrated in the following architecture diagram, in synchronous replication, there is no lag of data replication between the...