Manage configuration items - E-MapReduce - Alibaba Cloud Documentation Center

This topic describes how to modify and add configuration items.

Prerequisites

An E-MapReduce (EMR) on ACK cluster is created in the EMR console. For more information, see Getting started.

Go to the Configure tab.
1. Log on to the EMR on ACK console.
2. On the EMR on ACK page, find the cluster that you want to manage and click Configure in the Actions column.
On the Configure tab, search for the configuration item that you want to modify and change its value.
Save the configuration.
1. Click Save.
2. In the dialog box that appears, configure the Execution Reason parameter and click Save.
Deploy the configuration.
1. In the lower part of the Configure tab, click Deploy Client Configuration.
2. In the dialog box that appears, configure the Execution Reason parameter and click OK.
3. In the Confirm message, click OK.
Note
The configuration items of Spark clusters are used as the default configurations when you submit Spark jobs. The default configurations take effect only on newly submitted jobs. The configurations of submitted jobs cannot be updated. If you use a custom resource definition (CRD) to submit a Spark job, the configurations in the YAML file take precedence over the default configurations. After you modify the configurations of Shuffle Service clusters, the configurations take effect only if you restart the components of the clusters. For more information, see Restart components of a cluster.

Go to the Configure tab.
1. Log on to the EMR on ACK console.
2. On the EMR on ACK page, find the cluster that you want to manage and click Configure in the Actions column.

Add a configuration item.

On the Configure tab, click the tab on which you want to add a configuration item.
Click Add Configuration Item.

In the Add Configuration Item dialog box, add configuration items based on your business requirements and click OK.

You can add multiple configuration items at a time. The following table describes the parameters to configure when you add a configuration item.

Parameter	Description
Key	The name of the configuration item.
Value	The value of the configuration item.
Description	The description of the configuration item.
Actions	You can click the Delete icon in the Actions column to delete the configuration item.

In the dialog box that appears, configure the Execution Reason parameter and click Save.

Deploy the configuration.
1. In the lower part of the Configure tab, click Deploy Client Configuration.
2. In the dialog box that appears, configure the Execution Reason parameter and click OK.
3. In the Confirm message, click OK.