This topic describes the FAQ about exclusive resource groups.

What conditions must be met before an exclusive resource group can access a data store?

The following conditions must be met before an exclusive resource group can access a data store:
  • The zone where the data store resides is selected when you purchase the exclusive resource group.
  • The exclusive resource group is bound to the same Virtual Private Cloud (VPC) and VSwitch as the data store.
  • The Elastic IP Address (EIP) of the exclusive resource group and the Classless Inter-Domain Routing (CIDR) blocks of the VPC and VSwitch to which the exclusive resource group is bound are added to the whitelist (if any) and security group of the data store. For more information, see Configure a whitelist and Configure a security group.

How do I check the network environment of a data store?

  • To check the network environment of an ApsaraDB for RDS data store, follow these steps:
    1. Log on to the ApsaraDB for RDS console.
    2. In the left-side navigation pane, click Instances. On the Instances page that appears, find the target instance and click the instance name.
    3. On the page that appears, click Database Connection in the left-side navigation pane.
    4. On the Database Connection page that appears, click Switch VSwitch in the Database Connection section on the Instance Connection tab.
    5. In the Switch VSwitch dialog box that appears, check the VSwitch to which the data store is bound.
  • To check the network environment of a user-created data store hosted on an Elastic Compute Service (ECS) instance, follow these steps:
    1. Log on to the ECS console.
    2. Go to the Instances page, find the target instance, and then click the instance name.
    3. On the instance details page that appears, view the instance configurations.

What information about an exclusive resource group must be added to the whitelist of a data store that the exclusive resource group needs to access?

The data store that an exclusive resource group needs to access may be configured with a whitelist. In this case, you must add the following information about the exclusive resource group to the whitelist. Otherwise, nodes will fail to be run on the exclusive resource group.
  • EIP of the exclusive resource group
    1. Log on to the DataWorks console.
    2. In the left-side navigation pane, click Resource Groups.
    3. On the Exclusive Resource Groups tab, find the target resource group and click View Information in the Actions column.
    4. In the dialog box that appears, click the value of the EIPAddress parameter. The value is automatically copied. Add the value to the whitelist of the target data store.
  • Names of the VPC and VSwitch to which the exclusive resource group is bound

    You need to bind the exclusive resource group to a VPC. For more information, see Manage exclusive resource groups.

    After you bind the exclusive resource group to a VPC, go to the Resource Groups page in the DataWorks console. On the Exclusive Resource Groups tab, find the target resource group and click Add VPC Binding in the Actions column. On the page that appears, view the VPC and VSwitch names in the VPC and VSwitch columns, respectively.VSwitch
  • CIDR block of the VPC to which the exclusive resource group is bound

    Log on to the VPC console. In the left-side navigation pane, click VPCs. On the page that appears, find the target VPC and view the CIDR block of the VPC in the CIDR column.

  • CIDR block of the VSwitch to which the exclusive resource group is bound
    Log on to the VPC console. In the left-side navigation pane, click VSwitches. On the page that appears, find the target VSwitch and view the CIDR block of the VSwitch.VSwitch CIDR block