What is caching?
Before we start digging deeper into distributed caching, let’s understand caching. Caching is a technique used in computing to store and manage copies of data or resources in a location that allows for faster access. The primary purpose of caching is to reduce the time and resources required to retrieve data by keeping a copy of frequently accessed or expensive-to-compute information in a readily accessible location. This location is typically faster to access than the original source of the data.
Here are the key concepts associated with caching:
- Cache: A cache is a temporary storage area that holds copies of frequently accessed data or resources. This can be in the form of a hardware cache (for example, a CPU cache) or a software-based cache (for example, an in-memory cache).
- Cached data: This refers to the copies of data that are stored in the cache. The data is usually obtained from a slower, more permanent storage location (such as a database...
