Amazon ElastiCache vs Amazon RDS for PostgreSQL: What are the differences?
Developers describe Amazon ElastiCache as "Deploy, operate, and scale an in-memory cache in the cloud". ElastiCache improves the performance of web applications by allowing you to retrieve information from fast, managed, in-memory caches, instead of relying entirely on slower disk-based databases. ElastiCache supports Memcached and Redis. On the other hand, Amazon RDS for PostgreSQL is detailed as "* Set up, operate, and scale PostgreSQL deployments in the cloud*". Amazon RDS manages complex and time-consuming administrative tasks such as PostgreSQL software installation and upgrades, storage management, replication for high availability and back-ups for disaster recovery. With just a few clicks in the AWS Management Console, you can deploy a PostgreSQL database with automatically configured database parameters for optimal performance. Amazon RDS for PostgreSQL database instances can be provisioned with either standard storage or Provisioned IOPS storage. Once provisioned, you can scale from 10GB to 3TB of storage and from 1,000 IOPS to 30,000 IOPS.
Amazon ElastiCache can be classified as a tool in the "Managed Memcache" category, while Amazon RDS for PostgreSQL is grouped under "PostgreSQL as a Service".
Some of the features offered by Amazon ElastiCache are:
- Support for two engines: Memcached and Redis
- Ease of management via the AWS Management Console. With a few clicks you can configure and launch instances for the engine you wish to use.
- Compatibility with the specific engine protocol. This means most of the client libraries will work with the respective engines they were built for - no additional changes or tweaking required.
On the other hand, Amazon RDS for PostgreSQL provides the following key features:
- Monitoring and Metrics –Amazon RDS provides Amazon CloudWatch metrics for you DB Instance deployments at no additional charge.
- DB Event Notifications –Amazon RDS provides Amazon SNS notifications via email or SMS for your DB Instance deployments.
- Automatic Software Patching – Amazon RDS will make sure that the PostgreSQL software powering your deployment stays up-to-date with the latest patches.
"Redis" is the primary reason why developers consider Amazon ElastiCache over the competitors, whereas "Easy setup, backup, monitoring" was stated as the key factor in picking Amazon RDS for PostgreSQL.
Instacart, SendGrid, and Sellsuki are some of the popular companies that use Amazon ElastiCache, whereas Amazon RDS for PostgreSQL is used by Instacart, Tictail, and DSTLD. Amazon ElastiCache has a broader approval, being mentioned in 342 company stacks & 79 developers stacks; compared to Amazon RDS for PostgreSQL, which is listed in 164 company stacks and 27 developer stacks.
What is Amazon ElastiCache?
What is Amazon RDS for PostgreSQL?
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I use a micro elesticache instance as a shared session store between the Node.js clusters of dojo.zerotoherojs.com and nightly.zerotoherojs.com
Audit the ElastiCache configurations for best practices and standards.
Using PostGIS to serve GeoJSON data for the Leaflet front-end.