AnalyticDB：Create a resource scaling plan

Usage notes

• You cannot change the configuration of a cluster when you use resource scaling plans. If you want to change the configuration of a cluster, you must first disable the resource scaling plans for the cluster. After you change the configuration of the cluster, you can re-enable the resource scaling plans for the cluster. For information about how to disable a resource scaling plan, see Manage a resource scaling plan.

• You cannot enable EIU scaling plan and a Default Proportional Scaling for EIUs scaling plan at the same time.

• You cannot enable multiple Default Proportional Scaling for EIUs scaling plans at the same time.

• If no Interactive Resource Group scaling plan is enabled, Default Proportional Scaling for EIUs scaling plans cannot take effect.

• If the amount of reserved storage resources is 0 AnalyticDB compute units (ACUs), you can create only Interactive Resource Group scaling plans.

Procedure

1. Log on to the AnalyticDB for MySQL console. In the upper-left corner of the console, select a region. In the left-side navigation pane, click Clusters. On the Data Lakehouse Edition tab, find the cluster that you want to manage and click the cluster ID.

2. In the left-side navigation pane, choose Cluster Management > Resource Management.

3. On the Resource Management page, click the Scaling Plans tab. On the Resource Scaling Plans tab, click Create Plan in the upper-right corner.

4. In the Create Resource Scaling Plan panel, configure the parameters that are described in the following tables.

   1. Configure the Plan Name, Effective Date, and Expiration Date parameters.

      Parameter	Description
      Plan Name	The name of the resource scaling plan.
      Effective Date	The date when the resource scaling plan takes effect.
      Expiration Date	The date when the resource scaling plan expires. For example, if you set the Expiration Date to September 30, 2024, the resource scaling plan expires after 23:59:59 on September 30, 2024.

   2. Configure the Scaling Type parameter and relevant scaling plan parameters. For information about different types of resource scaling plans, see the "Types of resource scaling plans" section of this topic.

      Interactive Resource Group scaling plan

      Parameter	Description
      Scaling Type	The type of the resource scaling plan. Select Interactive Resource Group.
      Resource Group	The interactive resource group that you want to use to scale computing resources. You can select only an interactive resource group for which the multi-cluster feature is disabled.
      Desired Specifications	The specifications to which you want to scale computing resources.
      Scaling Cycle	The days on which you want to execute the resource scaling plan.
      Scaling Time (Cluster-specific)	The time when the computing resources of the interactive resource group are automatically scaled to the desired specifications. Important If you want to execute an Interactive Resource Group scaling plan on the day when you create or modify the scaling plan, make sure that the following requirements are met: If no Default Proportional Scaling for EIUs scaling plan is enabled, the interval between the scaling time and the current time must be greater than or equal to 10 minutes. If a Default Proportional Scaling for EIUs scaling plan is enabled, the interval between the scaling time and the current time must be greater than or equal to 30 minutes. For more information, see the "When does a resource scaling plan take effect?" section of this topic. If you want to create multiple Interactive Resource Group scaling plans, make sure that the following requirements are met: If a Default Proportional Scaling for EIUs scaling plan is enabled, the scaling time interval between multiple Interactive Resource Group scaling plans must be greater than or equal to 1 hour. If no Default Proportional Scaling for EIUs scaling plan is enabled, the scaling time interval between multiple Interactive Resource Group scaling plans must be greater than or equal to 10 minutes.
      Enabled	Specifies whether to enable the resource scaling plan. By default, the resource scaling plan is enabled. If you want to disable the resource scaling plan later, you can find the resource scaling plan on the Resource Scaling Plans tab and click Disable in the Actions column.

      EIU scaling plan

      Parameter	Description
      Scaling Type	The type of the resource scaling plan. Select EIU.
      Desired Specifications per EIU	The specifications to which you want to scale the resources of each EIU.
      Scaling Cycle	The days on which you want to execute the resource scaling plan.
      Scaling Time (Cluster-specific)	The time when the resources of each EIU are automatically scaled to the desired specifications. Important If you want to execute an EIU scaling plan on the day when you create or modify the scaling plan, make sure that the interval between the scaling time and the current time is greater than or equal to 30 minutes. The scaling time interval between multiple EIU scaling plans must be greater than or equal to 1 hour.
      Default Proportional Scaling for EIUs	Specifies whether to enable the Default Proportional Scaling for EIUs scaling plan. By default, the scaling plan is disabled, which specifies that EIU resources are separately scaled. If you enable the Default Proportional Scaling for EIUs scaling plan, EIU resources are scaled based on the same proportion as the computing resources of the interactive resource group. To allow the Default Proportional Scaling for EIUs scaling plan to take effect, you must also create and enable an Interactive Resource Group scaling plan.
      Enabled	Specifies whether to enable the resource scaling plan. By default, the resource scaling plan is enabled. If you want to disable the resource scaling plan later, you can find the resource scaling plan on the Resource Scaling Plans tab and click Disable in the Actions column.

5. Click OK.

   The created resource scaling plan is displayed on the Resource Scaling Plans tab. You can view parameters of the resource scaling plan, such as Plan Name, Desired Specifications, Status, and Next Effective Time (Cluster-specific).

Procedure

1. Log on to the AnalyticDB for MySQL console. In the upper-left corner of the console, select a region. In the left-side navigation pane, click Clusters. On the Data Warehouse Edition tab, find the cluster that you want to manage and click the cluster ID.

2. In the left-side navigation pane, click Elastic Resource Scaling.

3. On the Resource Scaling Plans tab of the Elastic Resource Scaling page, click Create Plan.

4. In the Create Resource Scaling Plan panel, configure the parameters that are described in the following table.

   Parameter	Description
   Scaling Type	The type of the resource scaling plan. For information about different types of resource scaling plans, see the "Types of resource scaling plans" section of this topic.
   Plan Name	The name of the resource scaling plan.
   Resource Group	The interactive resource group that you want to use to scale resources.
   Effective Date	The date when the resource scaling plan takes effect. The effective time varies based on the time when you create or modify the resource scaling plan. For more information, see the "When does a resource scaling plan take effect?" section of this topic.
   Expiration Date	The date when the resource scaling plan expires.
   Scaling Time	The time when the resources of the specified scaling plan type are automatically scaled to the desired specifications. Important If you want to execute multiple resource scaling plans on the same day, we recommend that you schedule the resource scaling plans at an interval of at least 1 hour.
   Restoration Time	The time when you want the system to scale the resources back to the original specifications.
   Scaled Resources	The specifications of the resources that you want to scale. The meaning of the Scaled Resources parameter varies based on the scaling plan type. For the Scaling for Computing Resources scaling plan, the Scaled Resources parameter specifies the computing resources that you want to add based on the original specifications. For example, if the specifications of the computing resources are 32 cores and 128 GB and you set the Scaled Resources parameter to 16 cores and 64 GB, the computing resources are scaled to 48 cores and 192 GB. For the Default Proportional Scaling for Computing Resources and EIUs scaling plan, the Scaled Resources parameter specifies the computing resources that you want to add based on the original specifications. The elastic I/O resources are scaled up based on the same scaling proportion as the computing resources. For example, if the specifications of the computing resources are 32 cores and 128 GB, the specifications of the elastic I/O resources are 8 cores and 64 GB, and you set the Scaled Resources parameter to 32 cores and 128 GB, the computing resources are scaled out to 64 cores and 256 GB at a scaling proportion of 2. In this case, the elastic I/O resources are scaled up to 16 cores and 128 GB based on the same scaling proportion. Important The scaling of elastic I/O resources is triggered only if you scale out computing resources to 1.5 times the current amount of computing resources. For example, when you scale out computing resources from 32 cores and 128 GB to 48 cores and 196 GB, elastic I/O resources are scaled up based on the proportion. For the Scaling for EIUs scaling plan, the Scaled Resources parameter specifies the desired specifications of the elastic I/O resources. For example, if the specifications of the elastic I/O resources are 8 cores and 64 GB and you set the Scaled Resources parameter to 16 cores and 128 GB, the elastic I/O resources are scaled up to 16 cores and 128 GB.
   Scaling Cycle	The days on which you want to execute the resource scaling plan.
   Enabled	Specifies whether to enable the resource scaling plan. By default, the resource scaling plan is enabled.

5. Click OK.