Scenarios
This document describes how to manage schemas and perform plugin operations for TCBase via the Elastic MapReduce (EMR) console.
Operation Steps
Installing a Plugin
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 plugin management page, and select the single or batch plugin operation plan as needed:
2.1 Single plugin installation: Select the plugin to be installed, and select Install in the Operation column of the list to go to the plugin installation pop-up page.
2.2 Batch installation of multiple plugins: Select the plugins to be installed, and select Install in the table header to go to the plugin installation pop-up page.
3. Confirm the information of the plugin to be installed and specify the schema. You can select an existing schema or enter a name to create a new one.
4. After confirming that the information is correct, click Confirm to start installing the plugin.
Uninstalling a Plugin
Note:
If the plugin still has dependent objects, is extended, or is referenced by external objects, the plugin uninstallation will fail.
If user permissions are insufficient, the plugin uninstallation will fail.
Plugin uninstallation may cause exceptions in ongoing transactions. Proceed with caution.
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 plugin management page, and select the single or batch plugin operation plan as needed:
2.1 Single plugin uninstallation: Select the plugin to be uninstalled, and select Uninstall in the Operation column of the list to go to the plugin uninstallation pop-up page.
2.2 Batch uninstallation of multiple plugins: Select the plugins to be uninstalled, and select Uninstall in the table header to go to the plugin uninstallation pop-up page.
3. Confirm the information of the plugin to be uninstalled. After verification, click Confirm to start uninstalling the plugin.