Modifies the parameter settings of a node and applies the new settings to another specified node.
Debugging
Authorization information
The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:
- Operation: the value that you can use in the Action element to specify the operation on a resource.
- Access level: the access level of each operation. The levels are read, write, and list.
- Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level,
All Resourcesis used in the Resource type column of the operation.
- Condition Key: the condition key that is defined by the cloud service.
- Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
| Operation | Access level | Resource type | Condition key | Associated operation |
|---|---|---|---|---|
| polardb:ModifyDBNodesParameters | Write |
|
| none |
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| DBClusterId | string | Yes | The cluster ID. | pc-************** |
| DBNodeIds | string | Yes | The ID of the node. You can specify multiple node IDs. Separate multiple node IDs with commas (,). | pi-****************， pi-**************** |
| Parameters | string | No | The JSON string that specifies the parameter and its value. | {"wait_timeout":"86","innodb_old_blocks_time":"10"} |
| ParameterGroupId | string | No | The ID of the parameter template that is used for the cluster. | pcpg-************** |
| PlannedStartTime | string | No | The earliest start time to run the task to upgrade the kernel version of the cluster. The task runs within a specified period of time. Specify the time in the ISO 8601 standard in the YYYY-MM-DDThh:mm:ssZ format. The time must be in UTC. | 2022-04-28T14:00:00Z |
| PlannedEndTime | string | No | The latest start time to run the task. Specify the time in the ISO 8601 standard in the YYYY-MM-DDThh:mm:ssZ format. The time must be in UTC. | 2022-04-28T14:30:00Z |
| FromTimeService | boolean | No | Specifies whether to immediately run the task to modify parameters and restart the cluster. Valid values: false: runs the task on schedule. true: runs the task immediately. Default value: false. | false |
Response parameters
Examples
Sample success responses
JSONformat
{
"RequestId": "EBEAA83D-1734-42E3-85E3-E25F6E******"
}Error codes
| HTTP status code | Error code | Error message | Description |
|---|---|---|---|
| 400 | InvalidParameters.Format | Specified parameters is not valid. | The specified parameters are invalid. |
| 400 | InvalidDBType.Malformed | The Specified DBType is not valid. | The specified database type is invalid. |
| 404 | InvalidDBCluster.NotFound | The specified DBClusterId is not found. | The specified cluster ID does not exist. |
For a list of error codes, visit the Service error codes.
Change history
| Change time | Summary of changes | Operation | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-09-12 | The Error code has changed | see changesets | ||||||||||||||
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| 2022-02-24 | The Error code has changed | see changesets | ||||||||||||||
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| 2022-02-24 | Add Operation | see changesets | ||||||||||||||
| 2022-02-24 | The Error code has changed. The request parameters of the API has changed | see changesets | ||||||||||||||
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