Elastic MapReduce (EMR) supports configuration rollback for operations such as modifying and deleting configuration items in the console. This document describes how to roll back service parameter configurations via the console.
Operation Steps
1. Log in to the EMR Serverless TCBase console, select the corresponding instance in the instance list, and click Instance ID/Name to go to the instance details page. 2. Go to the configuration management page and click Configuration History.
3. Click Details to view the comparison of parameter values before and after the configuration change. Click Rollback to roll back the parameter configuration change for this record. Choose Rollback > Confirm Rollback. After the rollback succeeds, restart the service and wait a moment for the rollback to take effect.