Create an instance in the ApsaraDB for SelectDB console and configure billing, networking, and compute settings.
Prerequisites
You have an Alibaba Cloud account. If you do not have one, register on the Alibaba Cloud official website.
You have activated Application Real-Time Monitoring Service (ARMS).
NoteActivating ARMS is free and allows you to use all its sub-products. Paid sub-products include a free quota. Charges apply after the free quota is used up.
To activate ARMS, see Activate ARMS.
Usage notes
When you use a RAM user to create a SelectDB instance, the RAM user must have the AliyunSelectDBFullAccess permission. For more information, see Manage RAM user permissions.
When you create a pay-as-you-go instance, make sure your Alibaba Cloud account balance is sufficient.
An instance can contain one or more BE clusters. The initial instance includes one cluster with the same billing method. To scale out, you can create a new cluster in the instance.
Creating an instance or a cluster consumes IP addresses within the CIDR block of the selected vSwitch. The consumption rules are as follows:
Subscription instance: Creating an instance consumes three IP addresses for the three FE nodes. Creating a cluster, including the default cluster, deploys only BE nodes. Each BE node consumes one IP address, and one BE node is deployed for every 32 cores.
Serverless instance: Creating an instance consumes three IP addresses for the three FE nodes. The number of IP addresses consumed by creating a cluster, including the default cluster, equals the number of BE nodes that you select.
Before you create an instance, make sure that the selected vSwitch has enough available IP addresses.
After an SelectDB instance is created, an address for the FE cluster is bound to the instance. This address is accessible within a VPC and exposes port 8080 for HTTP operations such as StreamLoad data imports and metrics scraping. Access to this address is controlled by a whitelist. To access the instance using this address, you must add the client IP address to the instance's whitelist. For more information about how to configure a whitelist, see Configure a whitelist.
Steps
Log on to the ApsaraDB for SelectDB console.
On the Instances page, click Create Instance.
On the purchase page, select a billing method.
Billing method
Use cases
Subscription
Prepaid. Best for long-term workloads. More cost-effective than pay-as-you-go, with larger discounts for longer subscription periods.
Pay-as-you-go
Postpaid. Billed hourly based on current instance specifications. Best for short-term workloads such as testing. Release the instance after use to reduce costs. You can switch to subscription after resource usage stabilizes.
Configure the following parameters based on the Product Type.
Subscription
Parameter
Description
Example
Region and Zone
Region: The geographic location of the instance. Select a region close to your target users to reduce latency.
Zone: A physically isolated area within a region with independent power and networking. There is no substantial difference between zones in the same region.
China (Hangzhou), Hangzhou Zone H
Virtual Private Cloud (VPC)
The VPC where you want to deploy the instance. If no VPC is available, go to the VPC console to create one.
vpc-bp175iuvg8nxqraf2****
Private network switch
Select a vSwitch in the VPC. If no vSwitch is available, go to the VPC console to create one.
vsw-bp1gzt31twhlo0sa5****
Minor Engine Version
The SelectDB kernel version corresponds to an Apache Doris version. For more information, see Kernel release notes.
3.0
Instance deployment architecture
An instance's deployment architecture determines its disaster recovery capability.
Same-City redundancy: Deploys resources across multiple zones to provide zone-level disaster recovery. If a single zone fails, service automatically fails over to other zones, ensuring that no metadata or persistent storage data is lost.
Locally Redundant Storage: Deploys resources in a single zone at a lower cost but does not provide cross-zone disaster recovery.
Zone-redundant Storage
Cluster Computing Resources
Total computing resources for all subscription clusters. A default cluster is created with the instance and allocated these resources.
8 vCores, 32 GB
Cluster cache size
Total cache size for all subscription clusters in the instance.
NoteA default cluster is created with subscription instances. This cache size applies to that cluster.
Stores hot data to accelerate reads and writes. The available size range depends on the computing resource specification.
Unit: GB
200 GB
Storage space
You do not need to specify the capacity in advance.
The system meters storage usage hourly and bills you based on actual consumption.
N/A
Table Name
Whether table names are case-sensitive.
Case-sensitive
Resource Group
Select a resource group for the instance.
To allow a RAM user to access the instance through a resource group, grant the required permissions. For more information, see Grant permissions to access ApsaraDB for SelectDB instances by using a resource group.
Default Resource Group
Tag
Optional. Add tags to your instance.
Duration
If you set the Subscription to Subscription, you must specify the duration.
1 month
Auto-renewal Recommended
If you set the Subscription to Subscription, you can select whether to enable auto-renewal.
If you do not select Auto-renewal Recommended when you create the instance, you can enable automatic or manual renewal in the Renewal console.
Select Auto-renewal.
Pay-as-you-go
Parameter
Description
Example
Region and Zone
Region: The geographic location of the instance. Select a region close to your target users to reduce latency.
Zone: A physically isolated area within a region with independent power and networking. There is no substantial difference between zones in the same region.
China (Hangzhou), Hangzhou Zone H
Virtual Private Cloud (VPC)
The VPC where you want to deploy the instance. If no VPC is available, go to the VPC console to create one.
vpc-bp175iuvg8nxqraf2****
Private network switch
Select a vSwitch in the VPC. If no vSwitch is available, go to the VPC console to create one.
vsw-bp1gzt31twhlo0sa5****
Minor Engine Version
The SelectDB kernel version corresponds to an Apache Doris version. For more information, see Kernel release notes.
2.4
Instance deployment architecture
An instance's deployment architecture determines its disaster recovery capability.
Same-City redundancy: Deploys resources across multiple zones to provide zone-level disaster recovery. If a single zone fails, service automatically fails over to other zones, ensuring that no metadata or persistent storage data is lost.
Locally Redundant Storage: Deploys resources in a single zone at a lower cost but does not provide cross-zone disaster recovery.
Zone-redundant Storage
Cluster Computing Resources
Total computing resources for all pay-as-you-go clusters. A default cluster is created with the instance and allocated these resources.
4 vCores, 16 GB
Cluster cache size
Total cache size for all pay-as-you-go clusters in the instance.
NoteA default cluster is created with pay-as-you-go instances. This cache size applies to that cluster.
Stores hot data to accelerate reads and writes. The available size range depends on the computing resource specification.
Unit: GB
200 GB
Table Name
Whether table names are case-sensitive.
Case-sensitive
Resource Group
Select a resource group for the instance.
Default Resource Group
Tag
Optional. Add tags to your instance.
Click Buy now and complete the payment.
It takes about 10 to 15 minutes to create the instance. Go to the Instances page and refresh the list to view the new SelectDB instance.