Scalability and high availability
Scalability and high availability are critical principles in designing modern software architectures, particularly in distributed systems and cloud-based applications. Understanding these concepts helps ensure that applications can handle increasing loads and remain operational with minimal downtime. Below is a detailed explanation of both principles. Scalability Scalability refers to the ability of a system to handle increased loads without sacrificing performance or availability. It involves adding resources to a system to accommodate growing user demands, data volumes, or transaction rates. There are two primary types of scalability: 1. Vertical Scalability (Scale-Up) Definition : This involves adding more resources (CPU, memory, storage) to an existing server or node. Use Case : Ideal for applications that are not designed for distributed environments or require high levels of computational power. For example, upgrading a database server with more RAM to handle more queries. ...
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