Elasticache is a web service that makes it easy to deploy, operate, and scale an in-memory cache in the cloud. It improves performance by retrieving information from a fast managed in-memory system instead of relying on slower disk-based databases.
Elasticache supports two open-source in-memory caching engines: Memcached and Redis. In this article, we will briefly compare the two engines and discuss when to use each one. We will also provide some tips on how to get the most out of Elasticache.
Memcached is a simple, high-performance key-value cache. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of times an external data source (such as a database or API) must be accessed.
Memcached is easy to use and deploy. It is a popular choice for web applications that require simple data caching.
Redis is a powerful, versatile key-value cache. It supports data structures such as strings, hashes, lists, sets, and sorted sets. This makes it a good choice for applications that require more complex data caching.
Redis is more difficult to set up and manage than Memcached, but it offers more features and flexibility.
Memcached is a good choice for web applications that have simple caching needs. If your application only needs to cache data in key-value pairs, Memcached may be the right solution for you.
Memcached is also a good choice if you are looking for a simple caching solution that is easy to set up and manage.
Redis is a good choice for web applications that need to cache more complex data structures. If your application needs to cache data in lists, sets, or sorted sets, Redis may be the right solution for you.
Redis is also a good choice if you are looking for a more powerful caching solution that offers more features and flexibility.
To get the most out of Elasticache, keep the following tips in mind:
Use a single Elasticache cluster for multiple web applications. This will help you save money and reduce management overhead.
Use ElastiCache Auto Discovery to simplify the deployment of your ElastiCache clusters. Auto Discovery makes it easy to connect your applications to ElastiCache, and it automatically detects and registers new ElastiCache clusters as they are created.
Use ElastiCache for Memcached in conjunction with Amazon Relational Database Service (Amazon RDS) for MySQL. ElastiCache can provide significant performance improvements for web applications that use MySQL databases.
Use ElastiCache for Redis in conjunction with Amazon ElastiSearch. ElastiCache can provide significant performance improvements for web applications that use ElastiSearch.
Elasticache is a web service that makes it easy to deploy, operate, and scale an in-memory cache in the cloud. It supports two open-source in-memory caching engines: Memcached and Redis.
Memcached is a simple, high-performance key-value cache. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of times an external data source (such as a database or API) must be accessed.
Redis is a powerful, versatile key-value cache. It supports data structures such as strings, hashes, lists, sets, and sorted sets. This makes it a good choice for applications that require more complex data caching.
To get the most out of Elasticache, use a single Elasticache cluster for multiple web applications and use ElastiCache Auto Discovery to simplify the deployment of your ElastiCache clusters.