Serverless App Engine:Configure startup acceleration for a Java application

Usage notes

• If you want to improve the startup efficiency of an application, you can select the Dragonwell 11 environment when you create the application and select Enable Application Startup Acceleration (Quickstart) in the Startup Command Settings section.

• If you want to improve the runtime efficiency of an application, you can select a Dragonwell environment when you create the application and select Enable Performance Improvement for Microservices (Wisp2 Coroutine) in the Startup Command Settings section.

Improve the startup and runtime efficiency of an application

Step 1: Specify basic information for the application

1. Log on to the SAE console.

2. In the left-side navigation pane, click Applications. In the top navigation bar, select a region. Then, click Create Application.

3. In the Basic Information step, configure the parameters and click Next: Application Deployment Configurations.

   For more information about the parameters in the Basic Information step, see Deploy a Java web application by using a WAR package in the SAE console and Deploy a microservices application by using a JAR package in the SAE console.

Step 2: Configure deployment settings for the application

1. In the Deployment Configurations step, configure the parameters. The following table describes the parameters.

   Parameter	Description
   Technology Stack Programming Language	Select Java.
   Application Deployment Method	Select Deployment with WAR Packages or Deployment with JAR Packages. In this example, Deployment with WAR Packages is selected.
   Configure WAR Package	Application Runtime Environment: Select an application environment based on your business requirements. Example: apache-tomcat-8.5.42. Java Environment: Select Dragonwell 11. File Upload Method: Select Upload WAR Package or WAR Package Address. Version: Enter a version number, or click Use Timestamp as Version Number to specify a timestamp as the version number of the application. Time Zone Settings: Select the time zone of the application. Example: UTC+8.

2. Optional: Configure persistent storage to accelerate the restart, scale-out, and scaling processes across instances.

   If you do not configure persistent storage, you can perform Step 3 to accelerate the startup process next time you restart the application.

   1. On the NAS File System tab of the Persistent Storage section, turn on Enable NAS Storage.

      

   2. Select an existing NAS file system from the NAS File System drop-down list and configure the Mount Source, Mount Directory, Container Path, and Permissions parameters.

3. In the Startup Command Settings section, configure the parameters.

   Only key parameters are described. For information about other parameters, see Configure a startup command.

   • To improve the startup efficiency of the application, select Enable Application Startup Acceleration (Quickstart) and configure the Persistent Storage Directory.

   • To improve the runtime efficiency for the application, select Enable Performance Improvement for Microservices (Wisp2 Coroutine).

4. Click Next: Confirm Specifications.

Step 3: Verify the result

1. In the Specification Confirmation step, view the details of the application and the fee for the selected specifications. Then, click Confirm.

   The Creation Completed step appears. You can click Application Details to go to the Basic Information page of the application.

2. Check whether the configurations have taken effect.

   • Method 1:

     In the left-side navigation pane of the Basic Information page, click Change Records. On the Change Records page, view the change details. If Executed is displayed in the Change Status column, the application is deployed and the configurations have taken effect.

   • Method 2:

     On the Basic Information page, click the Instance Deployment Information tab to view the Status of the instances. If Running is displayed in the Status column, the application is deployed and the configurations have taken effect.