Scenario
The network bandwidth requirements differ among various instance specifications. If traffic surpasses the bandwidth limit, it may lead to congestion and adversely affect service performance. For instance, during time-sensitive flash sales that generate concentrated traffic peaks, or when numerous large key read and write operations occur temporarily, you can swiftly enhance the bandwidth by adjusting the instance's bandwidth, thus preventing any negative impact on the business.
Billing description
Increasing the bandwidth is free of charge currently but will be billed in the future.
Concepts
Standard bandwidth: It is the bandwidth per (master or replica) node in the instance.
Read-only replica bandwidth: Each read-only replica has the same bandwidth as that of the master.
Additional bandwidth: If the standard bandwidth cannot meet your needs, you can add additional bandwidth.
Supports and Limits
Increasing the bandwidth will not affect your business, but reducing the bandwidth may cause throttling of the traffic that exceeds the bandwidth.
Preparations
The database instance is on v4.0 or later.
The database instance is in Running status.
The bandwidth of the database instance isn't suitable for the current business.
Instructions
1. Log in to the TencentDB for Redis® console.
2. Above the Instance List on the right, select the region.
3. In the instance list, find the target instance.
4. Open the Adjust Bandwidth pop-up window in any of the following ways:
In the Operation column of the target instance, select Configure > Adjust Bandwidth.
Click on the instance ID, and on the Instance Details page, navigate to the Network Information section. Click Adjust Bandwidth next to Maximum Network Throughput.
5. In the Adjust Bandwidth dialog box, you can select the desired additional bandwidth on the slider bar next to Additional Bandwidth according to your needs.
Parameter name | Description |
Instance Name | The instance name. |
Instance Specification | The instance specification: Shard quantity, memory, and replica quantity. |
Read-Only Replica | The read-only replica status. |
Standard Bandwidth | The bandwidth per (master or replica) node in the instance. |
Additional Bandwidth | Select the additional bandwidth on the slider bar. |
Total Instance Bandwidth | When read-only replica is enabled, the total instance bandwidth = additional bandwidth shard quantity + standard bandwidth shard quantity * Max([read-only replica quantity, 1]). The shard quantity in the standard architecture is 1. If read-only replica is not enabled, the total instance bandwidth = additional bandwidth shard quantity + standard bandwidth shard quantity. The shard quantity in the standard architecture is 1. |
Cost | Free of charge currently. |
6. After confirming that the total bandwidth meets your expectations, click Confirm Adjustment.
7. When the Instance Status changes to In Progress, wait for it to become Running. In the Instance Details page, under the Network Information section, you can view the updated Maximum Network Throughput as the total bandwidth.
Related APIs
API Name | Feature |
The API is used to modify the instance network configuration to adjust the bandwidth. |