The compute nodes of PolarDB for MySQL Cluster Edition and Multi-master Cluster (Database/Table) Edition are classified into two types: General-purpose and Dedicated. This topic describes the differences between the two types of compute nodes.
Compute node types
Compute node type | Description | Use scenario |
Dedicated Instance Types |
| Scenarios in which databases are the key component of business systems that require high reliability, such as finance, e-commerce, public service, and medium- or large-scale Internet services. |
General-purpose Instance Types |
| Scenarios in which cost-effectiveness is prioritized. |
Specifications and prices of Cluster Edition compute nodes
The following table describes the specifications and prices of General-purpose and Dedicated compute nodes in a PolarDB for MySQL cluster of Cluster Edition.
The prices of a single compute node in a PolarDB for MySQL cluster of Cluster Edition that is deployed in the Chinese mainland are listed. For more information about the pricing of compute nodes in different regions, see Billing rules of pay-as-you-go compute nodes.
Maximum IOPS values are theoretical values. It is not guaranteed that these nominal values can be accomplished under any conditions.
Clusters in a global database network (GDN) do not support specifications of 2 cores and 4 GB of memory or 2 cores and 8 GB of memory.
CPU and memory | Compute node type | Specification | Price per node | ||||||
Node instance type | Maximum storage capacity | Maximum number of connections | PSL4 maximum IOPS | PSL5 maximum IOPS | I/O bandwidth | Pay-as-you-go | Subscription | ||
2 cores, 4 GB memory | Dedicated Instance Types | N/A | |||||||
General-purpose Instance Types | polar.mysql.g2.medium | 5 TB | 1,800 | 4,000 | 8,000 | 1 Gbps | USD 0.081/hour | USD 39/month | |
2 cores, 8 GB memory | Dedicated Instance Types | polar.mysql.x4.medium | 5 TB | 6,000 | 8,000 | 16,000 | 1 Gbps | USD 0.091/hour | USD 44/month |
General-purpose Instance Types | polar.mysql.g4.medium | 5 TB | 2,000 | 8,000 | 16,000 | 1 Gbps | USD 0.091/hour | USD 44/month | |
2 cores, 16 GB memory | Dedicated Instance Types | polar.mysql.x8.medium | 10 TB | 8,000 | 18,000 | 36,000 | 2 Gbps | USD 0.266/hour | USD 128/month |
General-purpose Instance Types | N/A | ||||||||
4 cores, 8 GB memory | Dedicated Instance Types | N/A | |||||||
General-purpose Instance Types | polar.mysql.g2.large | 10 TB | 3,000 | 15,000 | 30,000 | 2 Gbps | USD 0.154/hour | USD 74/month | |
4 cores, 16 GB memory | Dedicated Instance Types | polar.mysql.x4.large | 10 TB | 8,000 | 32,000 | 64,000 | 4 Gbps | USD 0.323/hour | USD 155/month |
General-purpose Instance Types | polar.mysql.g4.large | 10 TB | 6,000 | 21,000 | 42,000 | 2 Gbps | USD 0.275/hour | USD 132/month | |
4 cores, 32 GB memory | Dedicated Instance Types | polar.mysql.x8.large | 10 TB | 8,000 | 36,000 | 72,000 | 4 Gbps | USD 1.525/hour | USD 252/month |
General-purpose Instance Types | N/A | ||||||||
8 cores, 16 GB memory | Dedicated Instance Types | N/A | |||||||
General-purpose Instance Types | polar.mysql.g2.xlarge | 10 TB | 6,000 | 18,000 | 36,000 | 2 Gbps | USD 0.339/hour | USD 163/month | |
8 cores, 32 GB memory | Dedicated Instance Types | polar.mysql.x4.xlarge | 20 TB | 10,000 | 48,000 | 96,000 | 8 Gbps | USD 0.646/hour | USD 310/month |
General-purpose Instance Types | polar.mysql.g4.xlarge | 20 TB | 10,000 | 27,000 | 54,000 | 4 Gbps | USD 0.533/hour | USD 256/month | |
8 cores, 64 GB memory | Dedicated Instance Types | polar.mysql.x8.xlarge | 30 TB | 16,000 | 54,000 | 108,000 | 10 Gbps | USD 1.033/hour | USD 496/month |
General-purpose Instance Types | N/A | ||||||||
16 cores and 64 GB | Dedicated Instance Types | polar.mysql.x4.2xlarge | 100 TB | 32,000 | 96,000 | 192,000 | 16 Gbps | USD 1.290/hour | USD 619/month |
General-purpose Instance Types | polar.mysql.g4.2xlarge | 30 TB | 16,000 | 31,500 | 63,000 | 4 Gbps | USD 1.049/hour | USD 504/month | |
16 cores, 96 GB memory | Dedicated Instance Types | N/A | |||||||
General-purpose Instance Types | polar.mysql.g6.2xlarge | 30 TB | 16,000 | 31,500 | 63,000 | 8 Gbps | USD 1.303/hour | USD 635/month | |
16 cores, 128 GB memory | Dedicated Instance Types | polar.mysql.x8.2xlarge | 100 TB | 32,000 | 96,000 | 192,000 | 16 Gbps | USD 2.064/hour | USD 991/month |
General-purpose Instance Types | polar.mysql.g8.2xlarge | 30 TB | 16,000 | 31,500 | 63,000 | 8 Gbps | USD 1.676/hour | USD 1,592/month | |
32 cores, 128 GB memory | Dedicated Instance Types | polar.mysql.x4.4xlarge | 100 TB | 64,000 | 144,000 | 288,000 | 10 Gbps | USD 2.580/hour | USD 1,238/month |
General-purpose Instance Types | polar.mysql.g4.4xlarge | 100 TB | 32,000 | 42,000 | 84,000 | 8 Gbps | USD 2.098/hour | USD 1,008/month | |
32 cores, 256 GB memory | Dedicated Instance Types | polar.mysql.x8.4xlarge | 100 TB | 64,000 | 144,000 | 288,000 | 24 Gbps | USD 4.128/hour | USD 1,982/month |
General-purpose Instance Types | N/A | ||||||||
64 cores, 512 GB memory | Dedicated Instance Types | polar.mysql.x8.8xlarge | 100 TB | 64,000 | 144,000 | 288,000 | 24 Gbps | USD 8.256/hour | USD 3,963/month |
General-purpose Instance Types | N/A | ||||||||
88 cores, 710 GB memory | Dedicated Instance Types | polar.mysql.x8.12xlarge | 100 TB | 100,000 | 192,000 | 384,000 | 32 Gbps | USD 11.351/hour | USD 5,449/month |
General-purpose Instance Types | N/A | ||||||||
Specifications and prices of Multi-master Cluster (Database/Table) Edition compute nodes
The following table describes the specifications and prices of general-purpose and dedicated compute nodes in a PolarDB for MySQL cluster of Multi-master Cluster (Database/Table) Edition.
The prices of a single compute node in a PolarDB for MySQL cluster of Multi-master Cluster (Database/Table) Edition that is deployed in the Chinese mainland are listed. For more information about the pricing of compute nodes in different regions, see Billing rules of pay-as-you-go compute nodes.
Maximum IOPS values are theoretical values. It is not guaranteed that these nominal values can be accomplished under any conditions.
CPU and memory | Compute node type | Specification | Price per node | ||||||
Node instance type | Maximum storage capacity | Maximum number of connections | PSL4 maximum IOPS | PSL5 maximum IOPS | I/O bandwidth | Pay-as-you-go | Subscription | ||
8 cores, 16 GB memory | Dedicated Instance Types | N/A | |||||||
General-purpose Instance Types | polar.mysql.mmg2.xlarge | 10 TB | 6,000 | 18,000 | 36,000 | 2 Gbps | USD 0.339/hour | USD 163/month | |
8 cores, 32 GB memory | Dedicated Instance Types | polar.mysql.mmx4.xlarge | 20 TB | 10,000 | 48,000 | 96,000 | 8 Gbps | USD 0.646/hour | USD 310/month |
General-purpose Instance Types | polar.mysql.mmg4.xlarge | 20 TB | 10,000 | 27,000 | 54,000 | 4 Gbps | USD 0.533/hour | USD 256/month | |
8 cores, 64 GB memory | Dedicated Instance Types | polar.mysql.mmx8.xlarge | 30 TB | 16,000 | 54,000 | 108,000 | 10 Gbps | USD 1.033/hour | USD 496/month |
General-purpose Instance Types | N/A | ||||||||
16 cores and 64 GB | Dedicated Instance Types | polar.mysql.mmx4.2xlarge | 100 TB | 32,000 | 96,000 | 192,000 | 16 Gbps | USD 1.290/hour | USD 619/month |
General-purpose Instance Types | polar.mysql.mmg4.2xlarge | 30 TB | 16,000 | 31,500 | 63,000 | 4 Gbps | USD 1.049/hour | USD 504/month | |
16 cores, 96 GB memory | Dedicated Instance Types | N/A | |||||||
General-purpose Instance Types | polar.mysql.mmg6.2xlarge | 30 TB | 16,000 | 31,500 | 63,000 | 8 Gbps | USD 1.303/hour | USD 635/month | |
16 cores, 128 GB memory | Dedicated Instance Types | polar.mysql.mmx8.2xlarge | 100 TB | 32,000 | 96,000 | 192,000 | 16 Gbps | USD 2.064/hour | USD 991/month |
General-purpose Instance Types | polar.mysql.mmg8.2xlarge | 30 TB | 16,000 | 31,500 | 63,000 | 8 Gbps | USD 1.676/hour | USD 796/month | |
32 cores, 128 GB memory | Dedicated Instance Types | polar.mysql.mmx4.4xlarge | 100 TB | 64,000 | 144,000 | 288,000 | 10 Gbps | USD 2.580/hour | USD 1,238/month |
General-purpose Instance Types | polar.mysql.mmg4.4xlarge | 60 TB | 32,000 | 63,000 | 126,000 | 8 Gbps | USD 2.098/hour | USD 1,008/month | |
32 cores, 256 GB memory | Dedicated Instance Types | polar.mysql.mmx8.4xlarge | 100 TB | 64,000 | 144,000 | 288,000 | 24 Gbps | USD 4.128/hour | USD 1,982/month |
General-purpose Instance Types | N/A | ||||||||
64 cores, 512 GB memory | Dedicated Instance Types | polar.mysql.mmx8.8xlarge | 100 TB | 64,000 | 144,000 | 288,000 | 24 Gbps | USD 8.256/hour | USD 3,963/month |
General-purpose Instance Types | N/A | ||||||||
88 cores, 710 GB memory | Dedicated Instance Types | polar.mysql.mmx8.12xlarge | 100 TB | 100,000 | 192,000 | 384,000 | 32 Gbps | USD 11.351/hour | USD 5,449/month |
General-purpose Instance Types | N/A | ||||||||