Help Center > > User Guide> MRS Quick Start> Creating a Cluster

Creating a Cluster

Updated at:Sep 29, 2020 GMT+08:00

The first step of using MRS is to create a cluster. This section describes how to create a cluster on the MRS management console.

Procedure

  1. Log in to the MRS management console.
  2. Click Buy Cluster, and go to the Buy Cluster page.

    When creating a cluster, pay attention to quota notification. If a resource quota is insufficient, increase the resource quota as prompted and create a cluster.

  3. On the page for buying a cluster, select Custom Config.
  4. Configure cluster software information.

    • Region: Use the default value.
    • Cluster Name: You can use the default name. However, you are advised to include your employee ID or name abbreviation or date for consolidated memory and easy distinguishing,
    • Cluster Version: Select the latest version, which is the default value.
    • Cluster Type: Use the default value Analysis cluster.
    • Select Spark, HBase, Hive, and other components for an analysis cluster. Select Kafka, Storm, and other components for a streaming cluster. For a hybrid cluster, you can select the components of the analysis cluster and streaming cluster.
    • Kerberos Authentication: Click to disable Kerberos authentication.
    • Username: name of the MRS Manager administrator. admin is used by default.
    • Password: password of the MRS Manager administrator.
    • Confirm Password: Enter the MRS Manager administrator password again.

      MRS streaming clusters do not support job and file management functions.

  5. Click Next.

    • Billing Mode: Use the default value.
    • AZ: Use the default value.
    • VPC: Use the default value. If there is no available VPC, click View VPC to access the VPC console and create a new VPC.
    • Subnet: Use the default value.
    • Security Group: Select Auto create.
    • EIP: Select Bind later.
    • Enterprise Project: Use the default value.
    • CPU Architecture: Use the default value.
    • Cluster HA: HA is enabled by default.
    • Instance Specifications: Select General computing Plus C3 > 8 vCPUs 32 GB (c3.2xlarge.4) for both Master and Core nodes.
    • System Disk: Select Common I/O and retain the default settings.
    • Data Disk: Select Common I/O and retain the default settings.
    • Instance Count: The number of Master nodes is 2 by default. Set the number of Core nodes to 3.
    • Login Mode: Select a mode for logging in to an ECS.
      • Password: Set a password for logging in to an ECS.
      • Key Pair: Select a key pair form the drop-down list. Select "I acknowledge that I have obtained private key file SSHkey-xxx and that without this file I will not be able to log in to my ECS." If you have never created a key pair, click View Key Pair to create or import a key pair. And then, obtain a private key file.

  6. Click Next. The Set Advanced Options tab page is displayed. Retain the default settings on this tab page.
  7. ClickBuy Now.
  8. Click Back to Cluster List to view the cluster status.

    It takes some time to create a cluster. The initial status of the cluster is Starting. After the cluster has been created successfully, the cluster status becomes Running.

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