All Products
Search
Document Center

Enterprise Distributed Application Service:GetJvmConfiguration

Last Updated:Dec 22, 2025

Queries the Java Virtual Machine (JVM) configuration of an application or an instance group in which an application is deployed.

Try it now

Try this API in OpenAPI Explorer, no manual signing needed. Successful calls auto-generate SDK code matching your parameters. Download it with built-in credential security for local usage.

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

edas:ReadApplication

get

*Application

acs:edas:{#regionId}:{#accountId}:namespace/{#NameSpaceId}/application/{#AppId}

None None

Request syntax

GET /pop/v5/app/app_jvm_config HTTP/1.1

Request parameters

Parameter

Type

Required

Description

Example

AppId

string

Yes

The ID of the application.

3616cdca-4f92-4***************

GroupId

string

No

The ID of the instance group.

  • If an ID is specified, this operation queries the JVM configuration information of the instance group.

  • If an ID is not specified, this operation queries the JVM configuration information of the application.

8123db90-880f-48**************

Response elements

Element

Type

Description

Example

object

Code

integer

The HTTP status code that is returned.

200

Message

string

The additional information that is returned.

success

RequestId

string

The ID of the request.

3F43-F34V-0VCD***********

JvmConfiguration

object

The JVM configuration of the application or instance group.

MaxPermSize

integer

The size of the permanent generation heap memory. Unit: MB.

1000

MaxHeapSize

integer

The maximum size of the heap memory. Unit: MB.

1000

Options

string

The custom parameter.

-XX:+UseConcMarkSweepGC -XX:-UseParNewGC

MinHeapSize

integer

The initial size of the heap memory. Unit: MB.

500

Examples

Success response

JSON format

{
  "Code": 200,
  "Message": "success",
  "RequestId": "3F43-F34V-0VCD***********",
  "JvmConfiguration": {
    "MaxPermSize": 1000,
    "MaxHeapSize": 1000,
    "Options": "-XX:+UseConcMarkSweepGC -XX:-UseParNewGC",
    "MinHeapSize": 500
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.