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Database Architecture
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Database Instance
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Adding a Node for an Instance
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Instances in the TencentDB for MySQL Cluster Edition architecture support attaching from 1 up to 5 read-only nodes. This document guides you through the process of adding read-only nodes for a cluster instance via the console once the instance has been created.
Prerequisites
For instances of the TencentDB for MySQL Cluster Edition, see Purchase Methods for creation.
The instance is running.
Billing
Directions
Note:
The current cluster edition instance supports up to one primary and five replicas, totaling six nodes.
1. Log in to the MySQL Console. In the instance list, click Instance ID or Manage in the Operation column to enter the Instance Details page.
2. On the Instance Details page, choose Specification Configurations > Instance Specification, and click Adjust Configurations.
3. On the adjust configurations page, under Node Availability Zone, click Add Read-Only Node, and then set the availability zone for this read-only node.
4. After selecting the switch time, click Submit.
During Maintenance Time: The configuration switch will occur within the maintenance time. To modify the instance maintenance time, see Setting Instance Maintenance Time.
Upon Upgrade Completion: A configuration switch will be immediately performed after the configuration change is completed.
5. After the switch is completed, the newly added read-only node will be found under Instance Architecture Diagram on the Instance Details page.
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