GetDeadLockHistory - Database Autonomy Service - Alibaba Cloud Documentation Center

Operation description

Retrieves the historical analysis records for recent and full deadlock analysis. For more information, see Deadlock analysis.

The following requirements must be met before you call this operation:

To query historical analysis records of recent deadlocks, the destination database engine must be RDS MySQL, self-managed MySQL, PolarDB for MySQL, or PolarDB-X 2.0.
To query historical analysis records of full deadlocks, the destination database engine must be RDS MySQL or PolarDB for MySQL, and DAS Alibaba Cloud Managed Services (formerly known as Economy Edition) must be enabled.
Use the latest version of the Alibaba Cloud SDK or DAS SDK.
When you use an SDK to call the DAS service, set the region to cn-shanghai.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

hdm:GetDeadLockHistory

none

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
InstanceId	string	Yes	The instance ID.	pc-bp1u5mas9exx7****
NodeId	string	No	The node ID. Note Specify the node ID for a PolarDB for MySQL instance.	pi-bp16v3824rt73****
PageNo	integer	No	The page number.	1
PageSize	integer	No	The number of entries per page. The maximum value is 100.	10
StartTime	integer	Yes	The start time of the query. This value is a UNIX timestamp. Unit: milliseconds. Important This parameter is a Long value. To prevent precision loss during serialization and deserialization, make sure that the value does not exceed 9007199254740991.	1731983066000
EndTime	integer	Yes	The end time of the query. This value is a UNIX timestamp. Unit: milliseconds. Important This parameter is a Long value. To prevent precision loss during serialization and deserialization, make sure that the value does not exceed 9007199254740991.	1732069466000
Source	string	No	The source of the task: MANUAL or unspecified: queries tasks for recent deadlock analysis. AUTO: queries tasks for full deadlock analysis. Important If you set this parameter to AUTO to query tasks for full deadlock analysis, the start time can be a maximum of seven days earlier than the end time.	AUTO

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	B6D17591-B48B-4D31-9CD6-9B9796B2****
Message	string	The returned message. Note If the request is successful, Successful is returned. If the request fails, an error message such as an error code is returned.	Successful
Synchro	string	A reserved parameter.	None
Data	string	The data returned as a JSON string. total: The total number of deadlocks. list: The list of deadlocks. accountId: The user ID. textId: The text ID of the deadlock. gmtModified: The time when the diagnostics were generated. lockTime: The time when the deadlock occurred. gmtCreate: The time when the diagnostics were created. nodeId: The node ID. uuid: The instance ID.	{ "total": 2, "list": [ { "accountId": "108**********", "textId": "35303d12d52d29ba73bb85fa2d5b", "gmtModified": 1732712680000, "lockTime": 1732687047000, "gmtCreate": 1732712680000, "nodeId": "pi-8************", "uuid": "pc-8v**********" }, { "accountId": "108********", "textId": "50a24bdcc5fe7e03f92a55ae7574", "gmtModified": 1732626448000, "lockTime": 1722500305000, "gmtCreate": 1732626448000, "nodeId": "pi-8************", "uuid": "pc-8v************" } ] }
Code	string	The returned status code.	200
Success	string	Indicates whether the request was successful: true: The request was successful. false: The request failed.	true

Examples

Success response

JSON format

{
  "RequestId": "B6D17591-B48B-4D31-9CD6-9B9796B2****",
  "Message": "Successful",
  "Synchro": "None",
  "Data": "{\n    \"total\": 2,\n    \"list\": [\n        {\n            \"accountId\": \"108************\",\n            \"textId\": \"35303d12d52d29ba73bb85fa2d5b****\",\n            \"gmtModified\": 1732712680000,\n            \"lockTime\": 1732687047000,\n            \"gmtCreate\": 1732712680000,\n            \"nodeId\": \"pi-8****************\",\n            \"uuid\": \"pc-8v**************\"\n        },\n        {\n            \"accountId\": \"108************\",\n            \"textId\": \"50a24bdcc5fe7e03f92a55ae7574****\",\n            \"gmtModified\": 1732626448000,\n            \"lockTime\": 1722500305000,\n            \"gmtCreate\": 1732626448000,\n            \"nodeId\": \"pi-8****************\",\n            \"uuid\": \"pc-8v**************\"\n        }\n    ]\n}",
  "Code": "200",
  "Success": "true"
}

Error codes

HTTP status code	Error code	Error message	Description
400	InvalidParams	The request parameters are invalid.
403	NoPermission	You are not authorized to do this action.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.