Last updated: 2019-09-09 12:20:59

1. API Description

API domain name:

This API queries the list of parameter modifications records.

Default API request rate limit: 20 requests/sec.

Note: This API supports financial availability zones. Because financial availability zones and non-financial availability zones are isolated, if the common parameter Region specifies a financial availability zone (e.g., ap-shanghai-fsi), you need to specify a domain name with the financial availability zone as well, which preferably in the same region as the specified Region, for example:

2. Input Parameters

The following parameters are required for requesting this API, including action-specific parameters and common parameters. For more information about common parameters for all requests, see Common Request Parameters.

Parameter name Required Type Description
Action Yes String Common parameter; the name of this API: DescribeInstanceParamRecords
Version Yes String Common parameter; the version of this API: 2018-04-12
Region Yes String Common parameters; for details, see the List of Regions supported by the product.
InstanceId Yes String Instance ID
Limit No Integer Page size
Offset No Integer Offset, which should be a multiplier of Limit

3. Output Parameters

Parameter name Type Description
TotalCount Integer Total number of modifications.
InstanceParamHistory Array of InstanceParamHistory Information of modifications.
RequestId String The ID of the request. Each request returns a unique ID. The RequestId is required to troubleshoot issues.

4. Sample

Sample 1. Querying the List of Parameter Modifications

Input Sample Code
&<Common request parameter>

Output Sample Code

  "Response": {
    "InstanceParamHistory": [
        "ModifyTime": "2019-01-07 11:28:58",
        "NewValue": "511",
        "ParamName": "hash-max-ziplist-entries",
        "PreValue": "512",
        "Status": 2
        "ModifyTime": "2019-01-07 11:28:48",
        "NewValue": "15001",
        "ParamName": "cluster-node-timeout",
        "PreValue": "15000",
        "Status": 2
    "RequestId": "e546784b-709c-401d-aba6-73037eb4e522",
    "TotalCount": 2

5. Developer Resources

API Explorer

API Explorer is a tool that provides ease of use in requesting APIs, authenticating identities, generating SDK and exploring APIs in Tencent Cloud environment.


TencentCloud API 3.0 integrates software development toolkits (SDKs) that support various programming languages to make it easier for you to call the APIs.


6. Error Codes

The following error codes are API business logic-related. For other error codes, see Common Error Codes.

Error Code Description
FailedOperation.SystemError Internal system error, irrelevant to the business.
InternalError.DbOperationFailed Internal database operation (e.g., update, insert, or select) errors.
InternalError.InternalError Internal error.
UnauthorizedOperation.NoCAMAuthed The operation performed is not authorized by CAM.
UnauthorizedOperation.NoCAMAuthed No CAM permissions.
UnauthorizedOperation.UserNotInWhiteList The user is not on the whitelist.
UnsupportedOperation.ClusterInstanceAccessedDeny The Redis cluster mode instance is not allowed to access a security group.