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On this page

Buying a GeminiDB HBase Instance

Updated on 2025-01-26 GMT+08:00

This section describes how to buy a GeminiDB instance that is compatible with HBase APIs.

Each tenant can create a maximum of 50 HBase instances by default. To request a higher quota, choose Service Tickets > Create Service Ticket in the upper right corner of the console and contact customer service.

Prerequisites

  • You have created a Huawei Cloud account.

Procedure

  1. Log in to the Huawei Cloud console.
  2. On the Instances page, click .
  3. On the displayed page, select a billing mode, select HBase for Compatible API, configure information about your instance. Click Next.

    Figure 1 Billing mode and basic information

    Table 1 Billing mode

    Parameter

    Description

    Billing Mode

    Only pay-per-use billing mode is supported.

    If you select this billing mode, you are billed based on how much time the instance is in use.

    Table 2 Basic information

    Parameter

    Description

    Region

    Region where a tenant is located

    NOTICE:

    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 over 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 include 4 to 64 bytes and must start with a letter. It is case-sensitive and allows only letters, digits, hyphens (-), and underscores (_).

    Compatible API

    HBase

    DB Instance Type

    Cluster

    Version

    3.11

    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.

    Figure 2 Specifications and storage

    Table 3 Specifications and storage

    Parameter

    Description

    Instance Specifications

    Higher CPU specifications provide better performance. Select specifications based on your service requirements.

    Nodes

    The number of nodes ranges from 3 to 21. Specify nodes based on service requirements.

    Storage Space

    Instance storage space. The range depends on the instance specifications.

    Select at least 1 GB each time you scale up the storage, and ensure that the increment is an integer.

    Figure 3 Network settings

    Table 4 Network settings

    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 a VPC.

    If there are no VPCs available, the system allocates resources to you by default.

    For details, see "Creating a VPC" in the 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 the Virtual Private Cloud User Guide.

    NOTE:
    • After an instance is created, the VPC where the instance is deployed cannot be changed.
    • If you want to connect to an instance using an ECS over a private network, ensure that the instance and the ECS are in the same VPC. If they are not, create a VPC peering connection between them for access.

    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 instances and other services. When you select a security group, you must ensure that it allows your client to access your instances.

    If there are no security groups available, the system allocates resources to you by default.

    Figure 4 Database configuration

    Table 5 Database configuration

    Parameter

    Description

    Administrator

    The default administrator account is rwuser.

    Administrator Password

    Password of the administrator account. The password:

    • Must be 8 to 32 characters long.
    • Must contain uppercase letters, lowercase letters, digits, and any of the following special characters: ~!#%^*-_=+?
    • Cannot contain @ or /
    • 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

    Enter the administrator password again.

    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 information about enterprise project, see Enterprise Management User Guide.

    Parameter Template

    A parameter template contains engine configuration values that can be applied to one or more instances. You can modify the instance parameters as required after the DB instance is created.

    After an instance is created, you can change the parameter template based on service requirements.

    SSL

    A security protocol. Secure Sockets Layer (SSL) certificates set up encrypted connections between clients and servers, preventing data from being tampered with or stolen during transmission.

    You are advised to enable SSL connection to improve data security.

    NOTE:

    If SSL is not enabled when you create an instance, you can enable it after the instance is created. For details, see Encrypting Data over SSL for a GeminiDB Cassandra Instance.

    Table 6 Tags

    Parameter

    Description

    Tag

    Tags a instance. This parameter is optional. Adding tags helps you better identify and manage your instances.

    A maximum of 20 tags can be added for each instance.

    If your organization has configured a tag policy for , 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.

    • Tag key: mandatory if the instance is going to be tagged.

      Each tag key must be unique for each instance. The value can contain a maximum of 128 characters, including digits (0-9), letters, underscores (_), periods (.), hyphens (-), and Chinese characters.

    • Tag value: optional if the instance is going to be tagged.

      The value can contain a maximum of 255 characters, including digits (0-9), letters, underscores (_), periods (.), hyphens (-), and Chinese characters.

  4. On the displayed page, confirm the instance details.

    • To modify the configurations, click Previous.
    • If no modification is required, read and agree to the service agreement and click Submit.

  5. On the Instances page, view and manage your instances.

    • The instance status is displayed as Creating.
    • After the creation is complete, the status changes to Available.

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

    • During creation, an automated backup policy is enabled by default. A full backup is automatically triggered after a DB instance is created.
    NOTE:

    After the instance is created, Cassandra 3.11.3 is displayed in the Compatible API column on the Instances page. In fact, Cassandra 3.11.3 is compatible with HBase and its usage is the same as that of HBase. So, feel free to use it.

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