TencentDB for MySQL supports three types of architectures: single-node (formerly Basic Edition), two-node (formerly High-Availability Edition), and three-node (formerly Finance Edition). General single-node instances are formerly known as Single-node High IO Edition instances.
Note:Single-node (formerly Basic Edition) is currently in the process of reconstruction and upgrading, and sales will be suspended during this period.
Architecture | Two-Node | Three-Node | Single-Node | |
---|---|---|---|---|
Resource isolation policy | General | General | General | Basic |
Supported version | MySQL 5.5, 5.6, 5.7, and 8.0 | MySQL 5.6, 5.7, and 8.0 | MySQL 5.6, 5.7, and 8.0 | MySQL 5.7 |
Node | One source, one replica | One source, two replicas | Single node | Single node |
Source-replica replication mode | Async (default), semi-sync | Async (default), strong sync, and semi-sync | - | - |
Instance availability | 99.95% | 99.99% | - | - |
Underlying storage | Local NVMe SSD | Local NVMe SSD | Local NVMe SSD | Premium cloud disk |
Performance | Up to 240,000 IOPS | Up to 240,000 IOPS | - | IOPS calculation formula: {min 1,500 + 8 x disk capacity, max 4,500} |
Use cases | Gaming, internet, IoT, retail, e-commerce, logistics, insurance, securities, etc. | Gaming, internet, IoT, retail, e-commerce, logistics, insurance, securities, etc. | Applications with read/write separation requirements | Personal learning, small websites, non-core small enterprise systems, and medium-to-large enterprise development and testing |
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