Queries Java Virtual Machine (JVM) configuration information of an application or a specified instance group where an application is deployed.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request headers

This operation uses only the common request header. For more information, see Common request parameters.

Request syntax

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

Request parameters

Parameter Type Position Required Example Description
AppId String Query Yes 3616cdca-4f92-4***************

The ID of the application.
GroupId String Query No 8123db90-880f-48**************

The ID of the instance group.

  • If an ID is specified, this operation queries the JVM configuration information of the instance group.
  • If you set this parameter to "", this operation queries the JVM configuration information of the application.

Response parameters

Parameter Type Example Description
Code Integer 200

The HTTP status code.
JvmConfiguration Struct

The JVM configuration information of the application or instance group.
MaxHeapSize Integer 1000

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

MaxPermSize Integer 1000

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

MinHeapSize Integer 500

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

Options String -XX:+UseConcMarkSweepGC -XX:-UseParNewGC

The custom JVM parameters.
Message String success

The returned message.
RequestId String 3F43-F34V-0VCD***********

The ID of the request.

Examples

Sample requests

GET /pop/v5/app/app_jvm_config HTTP/1.1
Common request header
{
  "AppId": ""
}

Sample success responses

XML format 

<Message>success</Message>
<JvmConfiguration>
    <MaxHeapSize>1000</MaxHeapSize>
    <MinHeapSize>500</MinHeapSize>
    <Options> -XX:+UseConcMarkSweepGC -XX:-UseParNewGC</Options>
</JvmConfiguration>
<Code>200</Code>

JSON format 

{
    "Message": "success",
    "JvmConfiguration": {
        "MaxHeapSize": 1000,
        "MinHeapSize": 500,
        "Options": " -XX:+UseConcMarkSweepGC -XX:-UseParNewGC"
    },
    "Code": 200
}

Error codes

For a list of error codes, visit the API Error Center.