ElastiCache Node Types
ElastiCache Node Types are the server instances that host your cache data. Various types of nodes are available, each optimized for different cache workloads, memory, and CPU usage. Each node type offers a balance between resource capacity, data replication, and performance. When you create a cache cluster, you can choose the appropriate node type that suits your application requirements. Some common node types are cache.t2, cache.m3, cache.r3, etc. You can select the correct node type based on the required storage size, the purpose of caching, and the desired performance characteristics.
Guide: Amazon ElastiCache Node Types
ElastiCache greatly simplifies the setup and management of in-memory cache environments in cloud architecture.
Why is it important?
ElastiCache node types determine memory capacity, CPU capability and network performance. They are important to adequately meet your application requirements with respect to performance, memory, and IO throughput. Essential for data partitioning strategies and offering the flexibility needed to handle diverse workloads.
What it is?
ElastiCache Node Types provide different configurations of CPU, memory, network performance and I/O throughput. It ranges from small types ideal for small applications to instances designed for IO-intensive, latency-sensitive applications.
How it works?
You choose the right instance for your applications based on memory capacity, CPU requirements and network performance. Each instance type offers different levels of these aspects. ElastiCache also allows scaling your instances vertically and horizontally.
Exam Tips: Answering Questions on ElastiCache Node Types
1) Understand the different ElastiCache Node Types, and what each is optimized for.
2) Remember how to choose the right instance based on your application's resource requirements.
3) Be aware of how vertical and horizontal scaling is achieved.
4) Understand how node types are linked with data partitioning strategies.
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