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    E-MapReduce:Create a cluster template

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    E-MapReduce:Create a cluster template

    Last Updated:Jun 22, 2026

    A cluster template is a saved configuration for quickly creating clusters in data development workflows.

    Background information

    Cluster templates are primarily used to automatically create temporary clusters for data development workflows. When a workflow starts, the scheduling system creates a cluster based on the template and submits jobs to the cluster. After the workflow completes, the scheduling system automatically releases the cluster.

    Limitations

    Cluster templates currently support only the Hadoop and Dataflow cluster types.

    Important

    The Data Platform feature of EMR is available only to users who started using it before 21:00 (UTC+08:00) on February 21, 2022.

    Procedure

    1. Go to the Projects page in Data Platform.

      1. Log in to the E-MapReduce console with your Alibaba Cloud account.

      2. In the top navigation bar, select the region and resource group.

      3. Click the Data Development tab.

    2. On the Projects page, click Cluster Template in the upper-right corner.
      On the Cluster Templates page, you can edit or delete existing templates.
      Action Description
      Edit Click Edit in the row of the target template. The changes take effect immediately for all workflows that use this template.
      Delete Click Delete in the row of the target template.
      Note The system does not verify if a template is currently in use. Deleting a template that is being used by workflows will cause them to fail when they attempt to create a cluster.
    3. Create a cluster template.
      1. In the upper-right corner, click Create Cluster Template.
      2. On the Create Cluster Template page, configure the parameters.

        Creating a cluster template is similar to creating a cluster. For more information, see Create a cluster.

        In the Hardware Configuration section, you can specify multiple instance types per node to prevent cluster creation failures caused by insufficient stock. Select a node type (Master, Core, or Task), set the vCPU and Memory specifications, and then move the desired instance types from the Available Instance Types list to the Selected Instance Types list. You can select up to three instance types.
      3. After you configure the parameters, select the E-MapReduce Terms of Service checkbox, and then click Save Template.
        Once created, the template appears in the template list.