Buying a Single-Node GeminiDB Influx Instance

Prerequisites

• You have created a Huawei Cloud account.

Procedure

1. Log in to the Huawei Cloud console.
2. In the service list, choose Databases > GeminiDB.
3. On the Instances page, click Buy DB Instance.
4. On the displayed page, select a billing mode, select instance specifications and click Next.
   Figure 1 Billing mode and basic information
   

   Table 1 Billing mode

   Parameter

   Description

   Billing Mode

   Select Yearly/Monthly or Pay-per-use. Yearly/Monthly Specify Required Duration. The system deducts fees from your account based on the service price. If you do not need such an instance any longer after it expires, change the billing mode to pay-per-use. For details, see Changing a Yearly/Monthly Instance to Pay-per-Use. NOTE: Yearly/Monthly instances cannot be deleted directly. If such an instance is no longer required, unsubscribe from it. For details, see How Do I Unsubscribe from a Yearly/Monthly Instance?. Pay-per-use If you select this billing mode, you are billed based on how much time the instance is in use. To use an instance for a long time, change its billing mode to yearly/monthly to reduce costs. For details, see Changing a Pay-per-Use Instance to Yearly/Monthly.

   Table 2 Basic information

   Parameter	Description
   Region	The region where the tenant is located. It can be changed in the upper left corner. NOTE: To reduce network latency, select a region nearest from which you will access the instance. Instances deployed in different regions cannot communicate with each other through a private network. After you buy an instance, you cannot change its region.
   DB Instance Name	The instance name: Can be the same as an existing instance name. Can contain 4 to 64 characters and must start with a letter. It is case-sensitive and allows only letters, digits, hyphens (-), and underscores (_). You can change the name of an instance after it is created. For details, see Changing a GeminiDB Influx Instance Name.
   Compatible API	InfluxDB GeminiDB is compatible with mainstream NoSQL APIs, including Redis, DynamoDB, Cassandra, HBase, MongoDB, and InfluxDB. You can select GeminiDB APIs by following How Do I Select an API?
   Storage Type	Classic: classic architecture with decoupled storage and compute Cloud native: more flexible, new-gen version with support for more AZs NOTE: Cloud native storage is only available for cluster (performance-enhanced) instances. The way you use instances with classic or cloud native storage is similar. Cloud native storage supports more AZs. If both classic and cloud native are supported, you can select any of them.
   DB Instance Type	Single node A single-node instance cannot ensure the SLA. You are advised to use it only for tests and function verification.
   DB Engine Version	1.8
   AZ	Availability zone where the instance is created. An AZ is a part of a region with its own independent power supplies and networks. AZs are physically isolated but can communicate with each other over a private network. A single-node instance can be deployed in one AZ.

   Figure 2 Specifications and storage
   

   Table 3 Specifications and storage

   Parameter	Description
   Instance Specifications	The specifications depend on configurations of the DFV shared resource pool and memory. Select specifications based on service requirements. For details about supported specifications, see Instance Specifications.
   Nodes	A single-node instance can have only one node.
   Storage Space	The storage is an integer and the minimum storage is 100 GB. You can add a minimum of 1 GB at a time.

   Figure 3 Network and database configurations
   

   Table 4 Network configurations

   Parameter	Description
   VPC	Virtual private network where your instances are located. A VPC isolates networks for different services. You can select an existing VPC or create one. For details about how to create a VPC, see "Creating a VPC" in Virtual Private Cloud User Guide. With VPC sharing, you can also use a VPC and subnet shared by another account. VPC owners can share the subnets in a VPC with one or multiple accounts through Resource Access Manager (RAM). This allows for more efficient use of network resources and reduces O&M costs. For more information about VPC subnet sharing, see VPC Sharing in Virtual Private Cloud User Guide. If there are no VPCs available, the system automatically allocates a VPC to you. NOTE: After a GeminiDB Influx instance is created, the VPC where the instance is deployed cannot be changed. To connect a GeminiDB Influx instance to an ECS over a private network, ensure they are in the same VPC. If they are not, create a VPC peering connection between them.
   Subnet	A subnet where your instance is created. The subnet provides dedicated and isolated networks, improving network security. NOTE: An IPv6 subnet cannot be associated with your instance. Select an IPv4 subnet.
   Security group	A security group controls access between GeminiDB Influx instances and other services. Ensure that the security group you selected allows your client to access the instance. If no security group is available, the system creates one for you.

   Table 5 Database configurations

   Parameter	Description
   Administrator	Username of the administrator account. The default value is rwuser.
   Administrator Password	Password of the administrator account. The password: Can include 8 to 32 characters. Can include uppercase letters, lowercase letters, digits, and any of the following special characters: ~!@#%^*-_=+? For security reasons, set a strong password. The system will verify the password strength. Keep your password secure. The system cannot retrieve it if it is lost.
   Confirm Password	This password must be consistent with the administrator password.
   Parameter Template	A template of parameters for creating an instance. The template contains API configuration values that are applied to one or more instances. After an instance is created, you can modify its parameters to better meet your service requirements. For details, see Modifying Parameters of GeminiDB Influx Instances.
   Enterprise Project	This parameter is provided for enterprise users. An enterprise project groups cloud resources, so you can manage resources and members by project. The default project is default. Select an enterprise project from the drop-down list. For more application information about enterprise projects, see Enterprise Management User Guide.

   Table 6 Tags

   Parameter

   Description

   Tags

   The setting is optional. Adding tags helps you better identify and manage your GeminiDB Influx instances. A maximum of 20 tags can be added for each instance. If your organization has configured a tag policy for a GeminiDB Influx instance, you need to add a tag to the instance based on the tag policy. If the tag does not comply with the tag policy, the instance may fail to be created. Contact the organization administrator to learn details about the tag policy. A tag consists of a tag key and a tag value. A tag key is mandatory if the instance will be tagged. Each tag key is unique for each instance. It can contain 1 to 128 characters, cannot start with _sys_, and cannot start or end with a space. Only letters, digits, spaces, and the following special characters are allowed: -_@.:/+= A tag value is optional if the instance will be tagged. The value can be empty. The value can contain a maximum of 255 characters. Only letters, digits, spaces, and the following special characters are allowed: _.-:+=@/ After an instance is created, you can view its tag details on the Tags tab. In addition, you can add, modify, and delete tags of an existing instance. For details, see Managing Tags.

   Table 7 Required duration

   Parameter	Description
   Required Duration	The length of your subscription if you select Yearly/Monthly billing. Subscription lengths range from one month to three years.
   Auto-renew	This option is not selected by default. If you select this option, the instance is automatically renewed based on the subscription duration.

5. On the displayed page, confirm instance details.
   • Yearly/Monthly
     • To modify the configurations, click Previous.
     • If no modification is required, read and agree to the service agreement, click Pay Now, and complete the payment.
   • Pay-per-use
     • To modify the configurations, click Previous.
     • If you do not need to modify the settings, read and agree to the service agreement and click Submit.

6. Click Back to Instance Management to go to the instance list.
7. On the Instances page, view and manage the created instance.
   • Creating an instance takes about 5 to 9 minutes. During the process, the instance status displayed in the instance list is Creating.
   • After the instance is created, its status becomes Available.

     You can click in the upper right corner of the page to refresh the instance status.

   • An automated backup policy is enabled by default during instance creation. A full backup is automatically triggered after an instance is created.
   • The default database port of the instance is 8635 and cannot be changed.
     Figure 4 Available instance