The compute nodes of PolarDB for MySQL Cluster Edition, Multi-master Cluster (Database/Table) Edition, and X-Engine 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 typeFeatureScenario
Dedicated
  • A cluster of Dedicated occupies all allocated compute resources such as CPUs.
  • The cluster does not share compute resources with other clusters that run on the same server. This improves the reliability and stability of the cluster.
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
  • Idle compute resources such as CPUs are shared among clusters that run on the same server.
  • Resource sharing allows you to deploy a large number of clusters at low costs.
Scenarios in which cost-effectiveness is prioritized.

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 PolarDB for MySQL Multi-master Cluster (Database/Table) Edition.

Note The following table describes the prices of compute nodes for a PolarDB for MySQL Multi-master Cluster (Database/Table) Edition cluster that is deployed in the Chinese mainland. For more information about the pricing of compute nodes in different regions, see Billing rules of compute nodes.
CPU and memory specificationCompute node typeSpecificationPrice per node
Node instance typeMaximum storage capacityMaximum connectionsPSL4 maximum IOPSPSL5 maximum IOPSInternal bandwidthI/O bandwidthPay-as-you-goSubscription
8 cores and 16 GB of memoryDedicatedN/A
General-purposepolar.mysql.mmg2.xlarge10 TB6,00018,00036,00010 Gbps2 Gbps

USD 0.339/hour

USD 163/month

8 cores and 32 GB of memoryDedicatedpolar.mysql.mmx4.xlarge20 TB10,00048,00096,00010 Gbps8 Gbps

USD 0.646/hour

USD 310/month

General-purposepolar.mysql.mmg4.xlarge20 TB10,00027,00054,00010 Gbps4 Gbps

USD 0.533/hour

USD 256/month

8 cores and 64 GB of memoryDedicatedpolar.mysql.mmx8.xlarge30 TB16,00054,000108,00010 Gbps10 Gbps

USD 1.033/hour

USD 496/month

General-purposeN/A
16 cores and 64 GB of memoryDedicatedpolar.mysql.mmx4.2xlarge100 TB32,00096,000192,00010 Gbps16 Gbps

USD 1.290/hour

USD 619/month

General-purposepolar.mysql.mmg4.2xlarge30 TB16,00031,50063,00010 Gbps4 Gbps

USD 1.049/hour

USD 504/month

16 cores and 96 GB of memoryDedicatedN/A
General-purposepolar.mysql.mmg6.2xlarge30 TB16,00031,50063,00010 Gbps8 Gbps

USD 1.303/hour

USD 635/month

16 cores and 128 GB of memoryDedicatedpolar.mysql.mmx8.2xlarge100 TB32,00096,000192,00010 Gbps16 Gbps

USD 2.064/hour

USD 991/month

General-purposepolar.mysql.mmg8.2xlarge30 TB16,00031,50063,00010 Gbps8 Gbps

USD 1.676/hour

USD 796/month

32 cores and 128 GB of memoryDedicatedpolar.mysql.mmx4.4xlarge100 TB64,000144,000288,00010 Gbps10 Gbps

USD 2.580/hour

USD 1,238/month

General-purposepolar.mysql.mmg4.4xlarge60 TB32,00063,000126,00010 Gbps8 Gbps

USD 2.098/hour

USD 1,008/month

32 cores and 256 GB of memoryDedicatedpolar.mysql.mmx8.4xlarge100 TB64,000144,000288,00010 Gbps24 Gbps

USD 4.128/hour

USD 1,982/month

General-purposeN/A
64 cores and 512 GB of memoryDedicatedpolar.mysql.mmx8.8xlarge100 TB64,000144,000288,00010 Gbps24 Gbps

USD 8.256/hour

USD 3,963/month

General-purposeN/A
88 cores and 710 GB of memoryDedicatedpolar.mysql.mmx8.12xlarge100 TB100,000192,000384,00025 Gbps32 Gbps

USD 11.351/hour

USD 5,449/month

General-purposeN/A

Specifications and prices of Cluster Edition compute nodes

The following table describes the specifications and prices of General-purpose and Dedicated compute nodes in PolarDB for MySQL Cluster Edition.

Note
  • The following table describes the prices of compute nodes for a PolarDB for MySQL Cluster Edition cluster that is deployed in the Chinese mainland. For more information about the pricing of compute nodes in different regions, see Billing rules of compute nodes.
  • 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 specificationCompute node typeSpecificationPrice per node
Node instance typeMaximum storage capacityMaximum connectionsPSL4 maximum IOPSPSL5 maximum IOPSInternal bandwidthI/O bandwidthPay-as-you-goSubscription
2 cores and 4 GB of memoryDedicatedN/A
General-purposepolar.mysql.g2.medium5 TB1,8003,0006,0001 Gbps1 Gbps

USD 0.081/hour

USD 39/month

2 cores and 8 GB of memoryDedicatedpolar.mysql.x4.medium5 TB6,0006,00012,0001 Gbps1 Gbps

USD 0.091/hour

USD 44/month

General-purposepolar.mysql.g4.medium5 TB2,0006,00012,0001 Gbps1 Gbps

USD 0.091/hour

USD 44/month

2 cores and 16 GB of memoryDedicatedpolar.mysql.x8.medium10 TB8,00013,50027,00010 Gbps2 Gbps

USD 0.266/hour

USD 128/month

General-purposeN/A
4 cores and 8 GB of memoryDedicatedN/A
General-purposepolar.mysql.g2.large10 TB3,00011,25022,50010 Gbps2 Gbps

USD 0.154/hour

USD 74/month

4 cores and 16 GB of memoryDedicatedpolar.mysql.x4.large10 TB8,00024,00048,00010 Gbps4 Gbps

USD 0.323/hour

USD 155/month

General-purposepolar.mysql.g4.large10 TB6,00015,75031,50010 Gbps2 Gbps

USD 0.275/hour

USD 132/month

4 cores and 32 GB of memoryDedicatedpolar.mysql.x8.large10 TB8,00024,00048,00010 Gbps4 Gbps

USD 1.525/hour

USD 252/month

General-purposeN/A
8 cores and 16 GB of memoryDedicatedN/A
General-purposepolar.mysql.g2.xlarge10 TB6,00018,00036,00010 Gbps2 Gbps

USD 0.339/hour

USD 163/month

8 cores and 32 GB of memoryDedicatedpolar.mysql.x4.xlarge20 TB10,00048,00096,00010 Gbps8 Gbps

USD 0.646/hour

USD 310/month

General-purposepolar.mysql.g4.xlarge20 TB10,00027,00054,00010 Gbps4 Gbps

USD 0.533/hour

USD 256/month

8 cores and 64 GB of memoryDedicatedpolar.mysql.x8.xlarge30 TB16,00054,000108,00010 Gbps10 Gbps

USD 1.033/hour

USD 496/month

General-purposeN/A
16 cores and 64 GB of memoryDedicatedpolar.mysql.x4.2xlarge100 TB32,00096,000192,00010 Gbps16 Gbps

USD 1.290/hour

USD 619/month

General-purposepolar.mysql.g4.2xlarge30 TB16,00031,50063,00010 Gbps4 Gbps

USD 1.049/hour

USD 504/month

16 cores and 96 GB of memoryDedicatedN/A
General-purposepolar.mysql.g6.2xlarge30 TB16,00031,50063,00010 Gbps8 Gbps

USD 1.303/hour

USD 635/month

16 cores and 128 GB of memoryDedicatedpolar.mysql.x8.2xlarge100 TB32,00096,000192,00010 Gbps16 Gbps

USD 2.064/hour

USD 991/month

General-purposepolar.mysql.g8.2xlarge30 TB16,00031,50063,00010 Gbps8 Gbps

USD 1.676/hour

USD 1,592 month

32 cores and 128 GB of memoryDedicatedpolar.mysql.x4.4xlarge100 TB64,000144,000288,00010 Gbps10 Gbps

USD 2.580/hour

USD 1,238/month

General-purposepolar.mysql.g4.4xlarge100 TB32,00042,00084,00010 Gbps8 Gbps

USD 2.098/hour

USD 1,008/month

32 cores and 256 GB of memoryDedicatedpolar.mysql.x8.4xlarge100 TB64,000144,000288,00010 Gbps24 Gbps

USD 4.128/hour

USD 1,982/month

General-purposeN/A
64 cores and 512 GB of memoryDedicatedpolar.mysql.x8.8xlarge100 TB64,000144,000288,00010 Gbps24 Gbps

USD 8.256/hour

USD 3,963/month

General-purposeN/A
88 cores and 710 GB of memoryDedicatedpolar.mysql.x8.12xlarge100 TB100,000192,000384,00025 Gbps32 Gbps

USD 11.351/hour

USD 5,449/month

General-purposeN/A

Specifications and prices of X-Engine Edition compute nodes

The following table describes the specifications and prices of General-purpose and Dedicated compute nodes in PolarDB for MySQL X-Engine Edition.

Note The following table describes the prices of compute nodes for a PolarDB for MySQL X-Engine Edition cluster that is deployed in the Chinese mainland. For more information about the pricing of compute nodes in different regions, see Billing rules of compute nodes.
CPU and memory specificationCompute node typeSpecificationPrice per node
Node instance typeMaximum storage capacityMaximum connectionsPSL4 maximum IOPSPSL5 maximum IOPSInternal bandwidthI/O bandwidthPay-as-you-goSubscription
4 cores and 8 GB of memoryDedicatedN/A
General-purposepolar.mysql.ag2.large200 TB3,00011,25022,50010 Gbps2 Gbps

USD 0.154/hour

USD 74/month

4 cores and 16 GB of memoryDedicatedpolar.mysql.ax4.large200 TB8,00024,00048,00010 Gbps4 Gbps

USD 0.323/hour

USD 155/month

General-purposepolar.mysql.ag4.large200 TB6,00015,75031,50010 Gbps2 Gbps

USD 0.275/hour

USD 132/month

8 cores and 16 GB of memoryDedicatedN/A
General-purposepolar.mysql.ag2.xlarge200 TB6,00018,00036,00010 Gbps2 Gbps

USD 0.339/hour

USD 163/month

8 cores and 32 GB of memoryDedicatedpolar.mysql.ax4.xlarge200 TB10,00048,00096,00010 Gbps8 Gbps

USD 0.646/hour

USD 310/month

General-purposepolar.mysql.ag4.xlarge200 TB10,00027,00054,00010 Gbps4 Gbps

USD 0.533/hour

USD 256/month

8 cores and 64 GB of memoryDedicatedpolar.mysql.ax8.xlarge200 TB16,00054,000108,00010 Gbps10 Gbps

USD 1.033/hour

USD 496/month

General-purposeN/A
16 cores and 64 GB of memoryDedicatedN/A
General-purposepolar.mysql.ag4.2xlarge200 TB16,00031,50063,00010 Gbps4 Gbps

USD 1.049/hour

USD 504/month

16 cores and 128 GB of memoryDedicatedpolar.mysql.ax8.2xlarge200 TB32,00096,000192,00010 Gbps16 Gbps

USD 2.064/hour

USD 991/month

General-purposeN/A
32 cores and 128 GB of memoryDedicatedN/A
General-purposepolar.mysql.ag4.4xlarge200 TB32,00063,000126,00010 Gbps8 Gbps

USD 2.098/hour

USD 1,008/month

32 cores and 256 GB of memoryDedicatedpolar.mysql.ax8.4xlarge200 TB64,000144,000288,00010 Gbps24 Gbps

USD 4.128/hour

USD 1,982/month

General-purposeN/A
64 cores and 512 GB of memoryDedicatedpolar.mysql.ax8.8xlarge200 TB64,000144,000288,00010 Gbps24 Gbps

USD 8.256/hour

USD 3,963/month

General-purposeN/A
88 cores and 710 GB of memoryDedicatedpolar.mysql.ax8.12xlarge200 TB100,000192,000384,00025 Gbps32 Gbps

USD 11.351/hour

USD 5,449/month

General-purposeN/A