The compute nodes of PolarDB for MySQL Cluster, Multi-primary Cluster, and Archive Database Cluster 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 Feature Scenario
Dedicated
  • A cluster of Dedicated occupies all allocated compute resources such as CPUs.
  • The cluster does not share computing resources with other clusters that run on the same server, improving its reliability and stability.
Scenarios in which databases are the key component of business systems that require high reliability, such as finance, e-commerce, public service sectors, and medium- or large-scale Internet services.
General-purpose
  • Idle computing 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 where cost-effectiveness is prioritized.

Specifications and prices of Multi-primary Cluster compute nodes

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

Note
  • The following table describes the prices of compute nodes for a PolarDB for MySQL Multi-primary 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.
  • The PolarDB clusters that you purchase on January 7, 2022 or later use Enterprise Edition PolarProxy. Their maximum values of input/output operations per second (IOPS), are listed the Maximum IOPS (PolarProxy Enterprise Edition) column. For clusters that you purchase before January 7, 2022, PolarProxy will be gradually upgraded to Enterprise Edition. After upgrade, their maximum IOPS will also become the values listed in the Maximum IOPS (PolarProxy Enterprise Edition) column.
CPU and memory specification Compute node type Specification Price per node
Node instance type Maximum storage capacity Maximum connections Maximum IOPS (previous PolarProxy editions) Maximum IOPS (PolarProxy Enterprise Edition) Internal bandwidth I/O bandwidth Pay-as-you-go Subscription
4 cores and 8 GB of memory Dedicated N/A
General-purpose polar.mysql.mmg2.large 10 TB 3,000 15,000 22,500 10 Gbps 2 Gbps

USD 0.153/hour

USD 74/month

4 cores and 16 GB of memory Dedicated polar.mysql.mmx4.large 10 TB 6,000 32,000 48,000 10 Gbps 4 Gbps

USD 0.323/hour

USD 155/month

General-purpose polar.mysql.mmg4.large 10 TB 6,000 21,000 31,500 10 Gbps 2 Gbps

USD 0.274/hour

USD 132/month

8 cores and 16 GB of memory Dedicated N/A
General-purpose polar.mysql.mmg2.xlarge 10 TB 6,000 24,000 36,000 10 Gbps 2 Gbps

USD 0.339/hour

USD 163/month

8 cores and 32 GB of memory Dedicated polar.mysql.mmx4.xlarge 20 TB 10,000 64,000 96,000 10 Gbps 8 Gbps

USD 0.646/hour

USD 310/month

General-purpose polar.mysql.mmg4.xlarge 20 TB 10,000 36,000 54,000 10 Gbps 4 Gbps

USD 0.532/hour

USD 255/month

8 cores and 64 GB of memory Dedicated polar.mysql.mmx8.xlarge 30 TB 16,000 72,000 108,000 10 Gbps 10 Gbps

USD 1.033/hour

USD 496/month

General-purpose N/A
16 cores and 64 GB of memory Dedicated N/A
General-purpose polar.mysql.mmg4.2xlarge 30 TB 16,000 42,000 63,000 10 Gbps 4 Gbps

USD 1.048/hour

USD 503/month

16 cores and 128 GB of memory Dedicated polar.mysql.mmx8.2xlarge 100 TB 32,000 128,000 192,000 10 Gbps 16 Gbps

USD 2.065/hour

USD 991/month

General-purpose N/A
32 cores and 128 GB of memory Dedicated N/A
General-purpose polar.mysql.mmg4.4xlarge 60 TB 32,000 84,000 126,000 10 Gbps 8 Gbps

USD 2.096/hour

USD 1,006/month

32 cores and 256 GB of memory Dedicated polar.mysql.mmx8.4xlarge 100 TB 64,000 192,000 288,000 10 Gbps 24 Gbps

USD 4.129/hour

USD 1,982/month

General-purpose N/A
64 cores and 512 GB of memory Dedicated polar.mysql.mmx8.8xlarge 100 TB 64,000 192,000 288,000 10 Gbps 24 Gbps

USD 8.256/hour

USD 3,963/month

General-purpose N/A
88 cores and 710 GB of memory Dedicated polar.mysql.mmx8.12xlarge 100 TB 100,000 256,000 384,000 25 Gbps 32 Gbps

USD 11.352/hour

USD 5,449/month

General-purpose N/A

Specifications and prices of Cluster compute nodes

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

Note
  • The following table describes the prices of compute nodes for a PolarDB for MySQL 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.
  • The PolarDB clusters that you purchase on January 7, 2022 or later use Enterprise Edition PolarProxy. Their maximum values of input/output operations per second (IOPS), are listed the Maximum IOPS (PolarProxy Enterprise Edition) column. For clusters that you purchase before January 7, 2022, PolarProxy will be gradually upgraded to Enterprise Edition. After upgrade, their maximum IOPS will also become the values listed in the Maximum IOPS (PolarProxy Enterprise Edition) column.
  • 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 specification Compute node type Instance type Price per node
Node specification code Maximum storage capacity Maximum connections Maximum IOPS (previous PolarProxy editions) Maximum IOPS (PolarProxy Enterprise Edition) Internal bandwidth I/O bandwidth Pay-as-you-go Subscription
2 cores and 4 GB of memory Dedicated N/A
General-purpose polar.mysql.g2.medium 5 TB 1,800 4,000 6,000 1 Gbps 1 Gbps

USD 0.081/hour

USD 39/month

2 cores and 8 GB of memory Dedicated polar.mysql.x4.medium 5 TB 6,000 8,000 12,000 1 Gbps 1 Gbps

USD 0.092/hour

USD 44/month

General-purpose polar.mysql.g4.medium 5 TB 2,000 8,000 12,000 1 Gbps 1 Gbps

USD 0.090/hour

USD 43/month

4 cores and 8 GB of memory Dedicated N/A
General-purpose polar.mysql.g2.large 10 TB 3,000 15,000 22,500 10 Gbps 2 Gbps

USD 0.153/hour

USD 74/month

4 cores and 16 GB of memory Dedicated polar.mysql.x4.large 10 TB 8,000 32,000 48,000 10 Gbps 4 Gbps

USD 0.323/hour

USD 155/month

General-purpose polar.mysql.g4.large 10 TB 6,000 21,000 31,500 10 Gbps 2 Gbps

USD 0.274/hour

USD 132/month

8 cores and 16 GB of memory Dedicated N/A
General-purpose polar.mysql.g2.xlarge 10 TB 6,000 24,000 36,000 10 Gbps 2 Gbps

USD 0.339/hour

USD 163/month

8 cores and 32 GB of memory Dedicated polar.mysql.x4.xlarge 20 TB 10,000 64,000 96,000 10 Gbps 8 Gbps

USD 0.646/hour

USD 310/month

General-purpose polar.mysql.g4.xlarge 20 TB 10,000 36,000 54,000 10 Gbps 4 Gbps

USD 0.532/hour

USD 255/month

8 cores and 64 GB of memory Dedicated polar.mysql.x8.xlarge 30 TB 16,000 72,000 108,000 10 Gbps 10 Gbps

USD 1.033/hour

USD 496/month

General-purpose N/A
16 cores and 64 GB of memory Dedicated N/A
General-purpose polar.mysql.g4.2xlarge 30 TB 16,000 42,000 63,000 10 Gbps 4 Gbps

USD 1.048/hour

USD 503/month

16 cores and 128 GB of memory Dedicated polar.mysql.x8.2xlarge 100 TB 32,000 128,000 192,000 10 Gbps 16 Gbps

USD 2.065/hour

USD 991/month

General-purpose N/A
32 cores and 128 GB of memory Dedicated N/A
General-purpose polar.mysql.g4.4xlarge 100 TB 32,000 N/A 84,000 10 Gbps 8 Gbps

USD 2.096/hour

USD 1,006/month

32 cores and 256 GB of memory Dedicated polar.mysql.x8.4xlarge 100 TB 64,000 192,000 288,000 10 Gbps 24 Gbps

USD 4.129/hour

USD 1,982/month

General-purpose N/A
64 cores and 512 GB of memory Dedicated polar.mysql.x8.8xlarge 100 TB 64,000 192,000 288,000 10 Gbps 24 Gbps

USD 8.256/hour

USD 3,963/month

General-purpose N/A
88 cores and 710 GB of memory Dedicated polar.mysql.x8.12xlarge 100 TB 100,000 256,000 384,000 25 Gbps 32 Gbps

USD 11.352/hour

USD 5,449/month

General-purpose N/A

Specifications and prices of Archive Database Cluster Edition compute nodes

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

Note
  • The following table describes the prices of compute nodes for a PolarDB for MySQL Archive Database Cluster Edition 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.
  • The PolarDB clusters that you purchase on January 7, 2022 or later use Enterprise Edition PolarProxy. Their maximum values of input/output operations per second (IOPS), are listed the Maximum IOPS (PolarProxy Enterprise Edition) column. For clusters that you purchase before January 7, 2022, PolarProxy will be gradually upgraded to Enterprise Edition. After upgrade, their maximum IOPS will also become the values listed in the Maximum IOPS (PolarProxy Enterprise Edition) column.
CPU and memory specification Compute node type Instance type Price per node
Node specification code Maximum storage capacity Maximum connections Maximum IOPS (previous PolarProxy editions) Maximum IOPS (PolarProxy Enterprise Edition) Internal bandwidth I/O bandwidth Pay-as-you-go Subscription
4 cores and 8 GB of memory Dedicated N/A
General-purpose polar.mysql.ag2.large 200 TB 3,000 15,000 22,500 10 Gbps 2 Gbps

USD 0.153/hour

USD 74/month

4 cores and 16 GB of memory Dedicated polar.mysql.ax4.large 200 TB 8,000 32,000 48,000 10 Gbps 4 Gbps

USD 0.323/hour

USD 155/month

General-purpose polar.mysql.ag4.large 200 TB 6,000 21,000 31,500 10 Gbps 2 Gbps

USD 0.274/hour

USD 132/month

8 cores and 16 GB of memory Dedicated N/A
General-purpose polar.mysql.ag2.xlarge 200 TB 6,000 24,000 36,000 10 Gbps 2 Gbps

USD 0.339/hour

USD 163/month

8 cores and 32 GB of memory Dedicated polar.mysql.ax4.xlarge 200 TB 10,000 64,000 96,000 10 Gbps 8 Gbps

USD 0.646/hour

USD 310/month

General-purpose polar.mysql.ag4.xlarge 200 TB 10,000 36,000 54,000 10 Gbps 4 Gbps

USD 0.532/hour

USD 255/month

8 cores and 64 GB of memory Dedicated polar.mysql.ax8.xlarge 200 TB 16,000 72,000 108,000 10 Gbps 10 Gbps

USD 1.033/hour

USD 496/month

General-purpose N/A
16 cores and 64 GB of memory Dedicated N/A
General-purpose polar.mysql.ag4.2xlarge 200 TB 16,000 42,000 63,000 10 Gbps 4 Gbps

USD 1.048/hour

USD 503/month

16 cores and 128 GB of memory Dedicated polar.mysql.ax8.2xlarge 200 TB 32,000 128,000 192,000 10 Gbps 16 Gbps

USD 2.065/hour

USD 991/month

General-purpose N/A
32 cores and 128 GB of memory Dedicated N/A
General-purpose polar.mysql.ag4.4xlarge 200 T 32,000 84,000 126,000 10 Gbps 8 Gbps

USD 2.096/hour

USD 1,006/month

32 cores and 256 GB of memory Dedicated polar.mysql.ax8.4xlarge 200 TB 64,000 192,000 288,000 10 Gbps 24 Gbps

USD 4.129/hour

USD 1,982/month

General-purpose N/A
64 cores and 512 GB of memory Dedicated polar.mysql.ax8.8xlarge 200 TB 64,000 192,000 288,000 10 Gbps 24 Gbps

USD 8.256/hour

USD 3,963/month

General-purpose N/A
88 cores and 710 GB of memory Dedicated polar.mysql.ax8.12xlarge 200 TB 100,000 256,000 384,000 25 Gbps 32 Gbps

USD 11.352/hour

USD 5,449/month

General-purpose N/A