ActiveFlowLog - Virtual Private Cloud - Alibaba Cloud Documentation Center

Enables a flow log. After the flow log is enabled, traffic information about a resource is captured.

Operation description

The ActiveFlowLog operation is asynchronous. After you send the request, the system returns a request ID. However, the operation is still being performed in the system background. You can call the DescribeFlowLogs operation to query the status of a flow log:
- If the flow log is in the Activating state, the flow log is being started.
- If the flow log is in the Active state, the flow log is started.
You cannot repeatedly call the ActiveFlowLog operation to start a flow log within the specified period of time.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Debug

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 Resources is 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
vpc:ActiveFlowLog	update	FlowLog acs:vpc:{#regionId}:{#accountId}:flowlog/{#FlowLogId}	none	none

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The ID of the region where you want to create the flow log. You can call the DescribeRegions operation to query the most recent region list.	cn-qingdao
FlowLogId	string	Yes	The ID of the flow log.	fl-m5e8vhz2t21sel1nq****

Response parameters

Parameter	Type	Description	Example
	object
Success	string	Indicates whether the operation is successful. Valid values: true: yes false: no	true
RequestId	string	The ID of the request.	F7DDDC17-FA06-4AC2-8F35-59D2470FCFC1

Examples

Sample success responses

JSONformat

{
  "Success": "true",
  "RequestId": "F7DDDC17-FA06-4AC2-8F35-59D2470FCFC1"
}

Error codes

HTTP status code	Error code	Error message	Description
400	IncorrectBusinessStatus.FlowLog	The business status of flowLog is incorrect.	-
400	InvalidInstanceId	Instance does not exist.	The error message returned because the specified instance does not exist.
400	InvalidStatus	Current instance status is not valid for this action.	-
400	InvalidRegionId.NotFound	The RegionId provided does not exist in our records.	The RegionId parameter is set to an invalid value. Specify a valid value and try again.
400	InvalidInstanceId.NotFound	The specfied instance is not existed.	-
400	IncorrectStatus.flowlog	Invalid flowlog status.	The flow log cannot be disabled because it is in an invalid state.
400	Forbidden.OperateManagedFlowLog	Authentication is failed for operate managed flowlog.	Authentication failed when operating the managed flow log.
400	OperationDenied.FlowLogDeliverFailed	The operation is not allowed due to an invalid delivery address.	The flow log cannot be started because the delivery address is invalid.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2023-08-30	API Description Update. The API operation is not deprecated.. The Error code has changed	View Change Details
2023-07-06	The Error code has changed	View Change Details