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ENS:DescribeServerLoadBalancerMonitor

Last Updated:Sep 04, 2026

Queries request monitoring data of an ESLB instance.

Operation description

  • API call frequency: 100 calls per second.

  • Per-user call frequency: 10 calls per second.

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Test

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

ens:DescribeServerLoadBalancerMonitor

list

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

StartTime

string

Yes

The start time in the format of yyyy-MM-dd HH:mm:ss.

2024-09-15 16:00:00

EndTime

string

Yes

The end time. The maximum interval between StartTime and EndTime cannot exceed 24 hours.

2024-09-15 17:00:00

LoadBalancerId

string

Yes

The load balancing instance ID.

lb-5sc1s9zrui8lpb8u7cl4f****

Response elements

Element

Type

Description

Example

object

Schema of Response

RequestId

string

Id of the request。

AAE90880-4970-4D81-A534-A6C0F3631F74

ServerLoadBalancerMonitorData

array<object>

The array of objects.

object

The monitoring data.

LoadBalancerId

string

The load balancing instance ID.

lb-5sc1s9zrui8lpb8u7cl4f****

LoadBalancerName

string

The load balancing instance name.

esk-edge-service-lb-a34****

EnsRegionId

string

The ID of the edge zone.

cn-wuxi-10

LoadBalancerSpec

string

The load balancing instance specification.

elb.s2.medium

Vip

string

The virtual IP address (VIP) of the instance.

10.0****

Vni

integer

The tunnel ID.

3018

Acc

integer

The total number of requests.

30

Reqs2xx

integer

The number of requests with 2xx HTTP status codes.

25

Reqs3xx

integer

The number of requests with 3xx HTTP status codes.

0

Reqs4xx

integer

The number of requests with 4xx HTTP status codes.

5

Reqs5xx

integer

The number of requests with 5xx HTTP status codes.

0

RtAvg

integer

The average request latency. Unit: milliseconds.

1404

BizTime

string

The log business time. The log collection granularity is 1 minute.

2024-09-15 16:00:00

Examples

Success response

JSON format

{
  "RequestId": "AAE90880-4970-4D81-A534-A6C0F3631F74",
  "ServerLoadBalancerMonitorData": [
    {
      "LoadBalancerId": "lb-5sc1s9zrui8lpb8u7cl4f****",
      "LoadBalancerName": "esk-edge-service-lb-a34****",
      "EnsRegionId": "cn-wuxi-10",
      "LoadBalancerSpec": "elb.s2.medium",
      "Vip": "10.0****",
      "Vni": 3018,
      "Acc": 30,
      "Reqs2xx": 25,
      "Reqs3xx": 0,
      "Reqs4xx": 5,
      "Reqs5xx": 0,
      "RtAvg": 1404,
      "BizTime": "2024-09-15 16:00:00\n"
    }
  ]
}

Error codes

HTTP status code

Error code

Error message

Description

400 IdempotentParameterMismatch The request uses the same client token as a previous, but non-identical request. Do not reuse a client token with different requests, unless the requests are identical.
400 NoPermission Permission denied.
400 InvalidParameter.%s The specified field %s invalid. Please check it again.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.