Installing Third-Party Software Using Bootstrap Actions

Prerequisites

The bootstrap action script has been prepared by referring to Preparing the Bootstrap Action Script.

Adding a Bootstrap Action When Creating a Cluster

1. Log in to the MRS management console.
2. Click Create Cluster. The page for creating a cluster is displayed.
3. Click the Custom Config tab.
4. Configure the cluster software and hardware by referring to Creating a Custom Cluster.
5. On the Set Advanced Options tab page, click Add in the Bootstrap Action area.

   Table 1 Parameters

   Parameter	Description
   Name	Name of a bootstrap action script The value can contain only digits, letters, spaces, hyphens (-), and underscores (_) and must not start with a space. The value can contain 1 to 64 characters. NOTE: A name must be unique in the same cluster. You can set the same name for different clusters.
   Script Path	Script path. The value can be an OBS file system path or a local VM path. An OBS file system path must start with s3a:// and end with .sh, for example, s3a://mrs-samples/xxx.sh. A local VM path must start with a slash (/) and end with .sh. NOTE: A path must be unique in the same cluster, but can be the same for different clusters.
   Parameter	Bootstrap action script parameters
   Execution Node	Select a type of the node where the bootstrap action script is executed.
   Executed	Select the time when the bootstrap action script is executed. Before initial component start After initial component start
   Action upon Failure	Whether to continue to execute subsequent scripts and create a cluster after the script fails to be executed. NOTE: You are advised to set this parameter to Continue in the debugging phase so that the cluster can continue to be installed and started no matter whether the bootstrap action is successful.

6. Click OK.

   After the bootstrap action is added, you can edit, clone, or delete it in the Operation column.

Adding an Automation Script on the Auto Scaling Page

1. Log in to the MRS management console.
2. Choose Clusters > Active Clusters, select a running cluster, and click its name to go to its details page.
3. Click the Nodes tab. On this tab page, click Auto Scaling in the Operation column of the task node group. The Auto Scaling page is displayed.

   If no task nodes are available, click Configure Task Node to add a task node and then perform this step.

   

   Configure Task Node is available only for MRS 3.x or later analysis, streaming, and hybrid clusters.

4. Configure a resource plan.

   Configuration procedure:

   1. On the Auto Scaling page, enable Auto Scaling.
   2. For example, the Default Range of node quantity is set to 2-2, indicating that the number of task nodes is fixed to 2 except the time range specified in the resource plan.
   3. Click Configure Node Range for Specific Time Range under Default Range.
   4. Configure Time Range and Node Range. For example, set Time Range to 07:00-13:00, and Node Range to 5-5. This indicates that the number of task nodes is fixed to 5 in the time range specified in the resource plan.

      You can click Configure Node Range for Specific Time Range to configure multiple resource plans.

5. (Optional) Configure automation scripts.
   1. Set Advanced Settings to Configure.
   2. Click Create. The Automation Script page is displayed.
   3. Set Name, Script Path, Execution Node, Parameter, Executed, and Action upon Failure .
   4. Click OK to save the automation script configurations.

6. Select I agree to authorize MRS to scale out or scale in nodes based on the above rule.
7. Click OK.