TencentDB for MySQL supports four types of architectures: the High-availability Edition, the Finance Edition, the Single-node High IO Edition, and the Basic Edition. This document describes the Single-node High IO Edition.
The Single-node High IO Edition adopts a single-physical node architecture with high cost performance.
Ideal for various industries with read/write separation requirements.
The Single-node High IO Edition uses local NVMe SSD disks for underlying storage with excellent IO performance and is ideal for read-only instances to share business read load.
- Single-node deployment is susceptible to single points of failure. If only one read-only instance is purchased, it is impossible to ensure high availability for your business, because a failure of the single read-only instance will lead to business disruption.
- As the time taken to recover a single read-only instance depends on the business data volume, the recovery time cannot be guaranteed. As a result, if your business requires high availability, we recommend you purchase at least two read-only instances for the RO group.