Configuring Role Instance Parameters

Scenario

You can view and modify default role instance configurations on MRS Manager based on site requirements. The configurations can be imported and exported.

Impact on the System

You need to download and update the client configuration files after configuring HBase, HDFS, Hive, Spark, Yarn, and MapReduce service properties.

Procedure

• Modifying role instance configurations
  1. Click Services.
  2. Select the target service from the service list.
  3. Click the Instances tab.
  4. Click the target role instance from the role instance list.
  5. Click Instance Configuration.
  6. Set Type to All. The navigation tree of all configuration parameters of the role instance is displayed.
  7. In the navigation tree, select a specified parameter and change its value. You can also enter the parameter name in the Search box to search for the parameter and view the result.

     If you want to cancel the modification of a parameter value, click to restore it.

  8. Click Save Configuration, select Restart the role instance, and click OK to restart the role instance.

     After Operation successful. is displayed, click Finish. The role instance is started successfully.

• Exporting Configuration Parameters of a Role Instance
  1. Click Services.
  2. Select a service.
  3. Select a role instance or click the Instances tab.
  4. Select a role instance on a specified host.
  5. Click Instance Configuration.
  6. Click Export Instance Configuration to export the configuration data of a specified role instance, and choose a path for saving the configuration file.
• Import configuration data of a role instance.
  1. Click Services.
  2. Select a service.
  3. Select a role instance or click the Instances tab.
  4. Select a role instance on a specified host.
  5. Click Instance Configuration.
  6. Click Import Instance Configuration to import the configuration data of the specified role instance.
  7. Click Save Configuration and select Restart the role instance. Click OK.

     After Operation successful. is displayed, click Finish. The role instance is started successfully.