You can purchase an exclusive resource group for scheduling based on your business requirements and use the resource group to schedule nodes. Before you use the exclusive resource group for scheduling, you may need to perform operations such as configuring network settings and IP address whitelists. This topic describes the process from the purchase of an exclusive resource group for scheduling to the use of the resource group.

Prerequisites

  • You are familiar with the performance and billing of exclusive resource groups for scheduling with specific specifications. The performance of an exclusive resource group for scheduling is measured based on the number of nodes that can be run in parallel. The billing details of an exclusive resource group for scheduling varies based on the specifications of the resource group. We recommend that you determine the specifications and subscription duration based on your business requirements before you purchase an exclusive resource group for scheduling. For more information, see Billing of exclusive resource groups for scheduling (subscription).
  • Optional. If an interaction is required between your exclusive resource group for scheduling and a data source or a different network environment (for example, you need to use a Shell node to access a self-managed database or a private IP address in a scheduling scenario) or if an exclusive resource group for scheduling is required to run a node that uses an E-MapReduce (EMR) or CDH compute engine instance, you must be familiar with the solutions for network connectivity between an exclusive resource group for scheduling and a data source or compute engine instance in different scenarios. In addition, you must be familiar with the precautions to practice when you configure the IP address whitelist of a data source. For information about the network connectivity solutions that can be used in different scenarios and how to configure the IP address whitelist of a data source, see Exclusive resource groups for scheduling.
    Note If you do not need to connect an exclusive resource group to a data source and you only want to fix issues that nodes are delayed due to insufficient resources in the shared resource group for scheduling, you can ignore the network configurations described in this topic. You can purchase an exclusive resource group for scheduling in any zone without the need to configure network settings.
  • You have a good command of the use scenarios of exclusive resource groups for scheduling. For more information, see Scenarios of exclusive resource groups for scheduling.

Procedure

To purchase and use an exclusive resource group for scheduling, you must perform the following steps.
StepDescriptionReferences
1Create an order to purchase exclusive resources for scheduling and create an exclusive resource group for scheduling based on the purchase order ID. Exclusive resource groups for scheduling are charged based on the subscription billing method. Create an exclusive resource group for scheduling
2Associate the exclusive resource group for scheduling with a workspace based on your business requirements. After an exclusive resource group is created, the resource group does not belong to any workspace. Therefore, you must associate the exclusive resource group with a workspace. Associate the exclusive resource group with a workspace
3If you want to use the exclusive resource group for scheduling to access a data source that resides in a virtual private cloud (VPC), associate the resource group with this VPC or a VPC that connects to the data source. (Optional) Associate the exclusive resource group with a VPC
4If the access of the exclusive resource group for scheduling to the data source is restricted by the IP address whitelist of the data source, add the elastic IP address (EIP) of the resource group or the CIDR block of the vSwitch with which the resource group is associated to the IP address whitelist. (Optional) Configure the IP address whitelist of a data source
5Test the network connectivity between the exclusive resource group for scheduling and the data source on the Data Source page. This ensures that a data synchronization solution or node that uses the data source can be normally configured. (Optional) Test the network connectivity of the exclusive resource group
6Use the exclusive resource group for scheduling to schedule a data synchronization node. If you want to use the exclusive resource group for scheduling to schedule a data synchronization node in the workspace with which the resource group is associated, you must manually select the resource group when you configure the node in the workspace. Use the exclusive resource group for scheduling
7View and monitor the resource usage of the exclusive resource group for scheduling and the number of instances that are waiting for resources in the resource group. View the resource usage of the exclusive resource group and monitor the resource group
8If you want to perform command-related operations on the exclusive resource group for scheduling, such as installing a third-party Python package, use the O&M Assistant feature to perform the operations. (Optional) Use the O&M Assistant feature to perform command-related operations on the exclusive resource group for scheduling

Precautions

  • Only an Alibaba Cloud account or a RAM user to which the AliyunBSSOrderAccess and AliyunDataWorksFullAccess policies are attached can purchase a resource group.
  • Only a workspace administrator can associate a resource group with a workspace and change the workspace with which a resource group is associated.
  • For information about the permissions that are required to use the features and perform operations on the Resource Groups page of the DataWorks console, see Policies that can be used to manage permissions on resource groups.
  • For information about how to create a custom policy and attach the custom policy to a RAM user, see (Optional) Create a custom policy.
  • You can associate an exclusive resource group for scheduling that uses the specifications of 4 vCPUs and 8 GiB of memory with a maximum of two VPCs. You can associate an exclusive resource group for scheduling that uses other specifications with a maximum of three VPCs.
  • You can purchase a maximum of 20 Elastic Compute Service (ECS) instances for each exclusive resource group for scheduling, and the ECS instances must be of the same specifications.

Create an exclusive resource group for scheduling

Note Only an Alibaba Cloud account or a RAM user to which the AliyunBSSOrderAccess and AliyunDataWorksFullAccess policies are attached can create a resource group.
  1. Log on to the DataWorks console.
  2. In the left-side navigation pane, click Resource Groups. On the Exclusive Resource Groups tab of the Resource Groups page, click Create Resource Group for Scheduling. Then, configure the parameters in the Create a dedicated resource group panel and on the DataWorks Exclusive Resources page. The following table describes the parameters that need to be configured.
    ParameterDescription
    RegionThe region in which you want to use the exclusive resource group.
    Note An exclusive resource group for scheduling cannot be shared across regions. For example, an exclusive resource group for scheduling in the China (Shanghai) region can be used only by workspaces in the China (Shanghai) region.
    Resource Group TypeThe type of the exclusive resource group. Select Exclusive Resource Group for Scheduling for this parameter.
    Resource Group NameThe name of the exclusive resource group for scheduling. The name must be unique within a tenant. Otherwise, an error is reported when you click OK.
    Note A tenant refers to an Alibaba Cloud account. Each tenant can have multiple RAM users.
    Resource Group DescriptionThe description of the exclusive resource group for scheduling.
    DurationExclusive resource groups for scheduling are charged based on the subscription billing method. To ensure service continuity, we recommend that you select Auto Renewal. You can also go to the Renewal Management page to enable or disable auto renewal after the resource group is created. For more information, see General reference: Disable auto-renewal for subscription resources.
    You can configure other parameters based on your business requirements.
    Note You can purchase a maximum of 20 Elastic Compute Service (ECS) instances for each exclusive resource group for scheduling, and the ECS instances must be of the same specifications.
  3. After you configure the parameters in the Create a dedicated resource group panel, click OK.
    Then, DataWorks starts to initialize the resource group. When the resource group enters the Running state, the resource group is created in the DataWorks console.
    Note DataWorks requires approximately 20 minutes to initialize the exclusive resource group for scheduling. Wait until the status of the resource group changes to Running.
After the exclusive resource group for scheduling is created in the DataWorks console, you must associate the resource group with a workspace. This way, you can select the resource group when you configure a node in the workspace.

Associate the exclusive resource group with a workspace

Note Only a workspace administrator can associate a resource group with a workspace and change the workspace with which a resource group is associated.

You must associate the exclusive resource group for scheduling with a workspace before you can select the resource group in the workspace. An exclusive resource group for scheduling can be shared among multiple workspaces but cannot be used across regions. For example, you can associate an exclusive resource group for scheduling in the China (Shanghai) region only with workspaces in the China (Shanghai) region. To associate an exclusive resource group for scheduling with a workspace, perform the following steps:

  1. Log on to the DataWorks console.
  2. On the Exclusive Resource Groups tab of the Resource Groups page, find the created resource group and click Change Workspace in the Actions column.
  3. In the Modify home workspace dialog box, find the workspace with which you want to associate the resource group and click Bind in the Actions column.

(Optional) Associate the exclusive resource group with a VPC

If an interaction is required between your exclusive resource group for scheduling and a data source or a different network environment (for example, you need to use a Shell node to access a self-managed database or a private IP address in a scheduling scenario) or if an exclusive resource group for scheduling is required to run a node that uses an E-MapReduce (EMR) or CDH compute engine instance, you must associate the exclusive resource group for scheduling with a VPC and configure the IP address whitelist of the data source.

Exclusive resource groups reside in the VPC in which DataWorks is hosted. You must associate your exclusive resource group with the VPC that you need to use to allow the resource group to access your data source. To associate an exclusive resource group for scheduling with a VPC, perform the following steps:
Note You can associate an exclusive resource group for scheduling that uses the specifications of 4 vCPUs and 8 GiB of memory with a maximum of two VPCs. You can associate an exclusive resource group for scheduling that uses other specifications with a maximum of three VPCs.
  1. Log on to the DataWorks console.
  2. In the left-side navigation pane, click Resource Groups. On the Exclusive Resource Groups tab of the Resource Groups page, find the created exclusive resource group for scheduling and click Network Settings in the Actions column. On the VPC Binding tab of the page that appears, you can associate the resource group with a VPC.
    Before you associate the exclusive resource group with a VPC, you must log on to the RAM console with your Alibaba Cloud account and authorize DataWorks to access your cloud resources.
  3. Associate the exclusive resource group with a VPC.
    1. On the VPC Binding tab, click Add Binding. In the Add VPC Binding panel, configure the parameters.
      Note If you want to use the resource group to access a data source, such as an Alibaba Cloud data source or a self-managed data source hosted on an ECS instance, you can select a network connectivity solution and configure network settings based on whether the resource group and data source belong to the same Alibaba Cloud account.
      ParameterDescription (same region and Alibaba Cloud account)Description (different regions or Alibaba Cloud accounts)
      VPCIf your data source and the exclusive resource group belong to the same Alibaba Cloud account, we recommend that you select the VPC in which your data source resides.

      If your data source and the exclusive resource group belong to different Alibaba Cloud accounts, configure this parameter based on the description for the scenario where your data source and the exclusive resource group reside in different regions.

      If your data source and the exclusive resource group belong to different Alibaba Cloud accounts or reside in different regions, you must select a VPC that connects to the data source. For example, if your data source does not reside in a VPC, you can click Create VPC to create a VPC for the exclusive resource group. After the VPC is created, you can select it from the VPC drop-down list. You can also select a VPC that connects to your data source.
      Note If your data source and the exclusive resource group reside in different regions or belong to different Alibaba Cloud accounts, you must use VPN Gateway or Express Connect to establish a connection between the VPC with which the exclusive resource group is associated and the VPC in which the data source resides and add a route that points to the IP address of the data source for the exclusive resource group. For more information, see Establish a network connection between a resource group and a data source.
      ZoneSelect the zone in which your data source resides. Select a zone from which a network connection to your data source is established.
      VSwitchIf you set the VPC parameter to the VPC in which your data source resides, we recommend that you select the vSwitch to which the data source is connected.
      Note After you associate the exclusive resource group with the VPC in which the data source resides and a vSwitch that resides in the VPC, a route that points to the CIDR block of the VPC is automatically added. This ensures that the exclusive resource group can access the data sources in this VPC.
      Select the vSwitch to which the data source is connected. If no vSwitch is available, you can click Create VSwitch to create a vSwitch for the exclusive resource group. After a vSwitch is created, select the vSwitch.
      Security GroupsSecurity groups allow or deny access to the exclusive resource group over the Internet or an internal network. You can select an existing security group based on your business requirements, or click Create Security Group to create a security group for the resources in the exclusive resource group. For more information about how to create a security group, see Add a security group rule.
    2. Click OK.
    Note If your data source and the exclusive resource group reside in different regions or belong to different Alibaba Cloud accounts, you must add a route that points to the IP address of your data source after you associate the exclusive resource group with a VPC.
  4. Optional:Add host configurations.
    You may fail to access your data source by using IP addresses. For example, you can access your data source only by using hostnames. In this case, you must perform the following steps to add host configurations. Otherwise, the connectivity test fails when you add the data source by using its hostnames.
    1. Click the Hostname-to-IP Mapping tab. Then, click Add. In the Create Hostname-to-IP Mapping dialog box, configure the parameters. The following table describes the parameters.
      ParameterDescription
      IP AddressThe actual IP address of the data source.
      HostnameThe hostname that is used to access the data source. If you want to specify multiple hostnames, place each hostname on a separate line.
    2. If the data source has multiple IP addresses, click Add to add more host configurations.
      Note
      • The IP address or hostnames that are added in a host configuration must be different from the IP addresses or hostnames in existing host configurations.
      • You can map one IP address to multiple hostnames in a host configuration. However, one hostname can point to only one IP address.

(Optional) Configure the IP address whitelist of a data source

An exclusive resource group for scheduling may still fail to access your data source even if the resource group and your data source reside in the same zone and are associated with the same VPC and vSwitch. This failure occurs if the access of the resource group to the data source is denied by the IP address whitelist of the data source. Configure the IP address whitelist of your data source based on the following instructions:
  • If the exclusive resource group accesses your data source over an internal network, you must add the CIDR block of the vSwitch with which the resource group is associated to the IP address whitelist of your data source.
    To view the CIDR block of the vSwitch with which the resource group is associated, perform the following operations: Log on to the DataWorks console and click Resource Groups in the left-side navigation pane. On the Exclusive Resource Groups tab, find the exclusive resource group and click Network Settings in the Actions column. On the VPC Binding tab, you can view the CIDR block in the VSwitch CIDR Block column. View the CIDR block of the vSwitch with which the exclusive resource group for scheduling is associated
  • If the exclusive resource group accesses your data source over the Internet, you must add the elastic IP address (EIP) of the resource group to the IP address whitelist of your data source. View the EIP of the exclusive resource group

(Optional) Test the network connectivity of the exclusive resource group

After you complete the preceding network configuration, you need to test the network connectivity between the resource group and your data source by performing the following operations:

  1. On the Workspaces page, find the desired workspace, move the pointer over the More icon in the Actions column, and then select Workspace Settings. In the Workspace Settings panel, click More. The Workspace Management page appears.
  2. Find the desired data source and click Edit in the Operation column.
  3. In the dialog box that appears, select Schedule for Resource Group connectivity. Find the exclusive resource group for scheduling and click Test connectivity in the Actions column. If the connectivity status is Connected, a network connection is established between the resource group and data source.
    Note For more information about the solutions for network connectivity between an exclusive resource group and data sources that reside in various network environments, see Establish a network connection between a resource group and a data source.
  4. Click Complete.

Use the exclusive resource group for scheduling

Environment for the operationSupported change operationEntry point
Production environmentChange the resource groups for scheduling for multiple nodes in the production environment at the same time
  1. In the left-side navigation pane of the Operation Center page, choose Cycle Task Maintenance > Cycle Task.
  2. Select the nodes for which you want to change the resource groups and click Modify Scheduling Resource Group in the lower part of the Cycle Task page.
Note You cannot change the resource groups for zero load nodes, workflow nodes, or Machine Learning nodes.
Development environment
  • Change the resource group for scheduling for a single node in the development environment
  • Change the resource groups for scheduling for multiple nodes in the development environment at the same time
Go to the DataStudio page.
  • Change the resource group for a single node

    Go to the configuration tab of the node for which you want to change the resource group and select the resource group for scheduling that you want to use for the node in the Configure Scheduling Settings step.

  • Change the resource groups for multiple nodes at the same time

    Click the Batch Operation icon. On the Batch Operation-Data Development tab, select the nodes for which you want to change the resource groups, click More in the lower part of the tab, and then select Change Resource Group for Scheduling.

DataStudio pageChange the resource group for scheduling for a single nodeGo to the configuration tab of the node for which you want to change the resource group and click the Change icon in the top toolbar to change the resource group for scheduling that is used to test the node.

View the resource usage of the exclusive resource group and monitor the resource group

You can view the resource usage of the exclusive resource group for scheduling and the number of instances that are waiting for resources in the resource group in the DataWorks console. You can also use the intelligent monitoring feature provided in Operation Center to monitor the resource usage of the resource group and the number of instances that are waiting for resources in the resource group. For more information about how to view the resource usage of a resource group, see View the resource usage of an exclusive resource group. For more information about how to monitor a resource group, see Create a custom alert rule.

(Optional) Use the O&M Assistant feature to perform command-related operations on the exclusive resource group for scheduling

If you need to perform command-related operations on the exclusive resource group for scheduling during data development, you can use the O&M Assistant feature. For example, you can use the O&M Assistant feature to install a third-party Python package. For more information about the O&M Assistant feature, see Use the O&M Assistant feature.