Linux – How to shutdown a Spring Boot Application in a correct way

linuxspringspring-boot

In the Spring Boot Document, they said that 'Each SpringApplication will register a shutdown hook with the JVM to ensure that the ApplicationContext is closed gracefully on exit.'

When I click ctrl+c on the shell command, the application can be shutdown gracefully. If I run the application in a production machine, I have to use the command
java -jar ProApplicaton.jar. But I can't close the shell terminal, otherwise it will close the process.

If I run command like nohup java -jar ProApplicaton.jar &, I can't use ctrl+c to shutdown it gracefully.

What is the correct way to start and stop a Spring Boot Application in the production environment?

Best Answer

If you are using the actuator module, you can shutdown the application via JMX or HTTP if the endpoint is enabled.

add to application.properties:

endpoints.shutdown.enabled=true

Following URL will be available:

/actuator/shutdown - Allows the application to be gracefully shutdown (not enabled by default).

Depending on how an endpoint is exposed, the sensitive parameter may be used as a security hint.

For example, sensitive endpoints will require a username/password when they are accessed over HTTP (or simply disabled if web security is not enabled).

From the Spring boot documentation

Related Solutions

C# – How to change the Page Title in ASP.Net 1.1

With ASP.Net 1.1, first you have to set the runat attribute on the title markup :

<title id="PageTitle" runat="server">WebForm1</title>

Then from the code behind :

// We need this name space to use HtmlGenericControl
using System.Web.UI.HtmlControls;

namespace TestWebApp
{

      public class WebForm1 : System.Web.UI.Page
      {
            // Variable declaration and instantiation
            protected HtmlGenericControl PageTitle = new HtmlGenericControl();

            private void Page_Load(object sender, System.EventArgs e)
            {
                  // Set new page title
                  PageTitle.InnerText = "New Page Title";
            }
      }
}

Imports System.Web.UI.HtmlControls

Namespace TestWebApp

    Public Class WebForm1
        Inherits System.Web.UI.Page

        Protected PageTitle As HtmlGenericControl = New HtmlGenericControl()

        Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)

            PageTitle.InnerText = "New Page Title"
        End Sub

...

    End Class
End Namespace

Spring-boot – Define logback shutdown hook in Spring Boot

Just add the <shutdownHook/> instruction to your logback.xml. For example:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <shutdownHook class="ch.qos.logback.core.hook.DelayingShutdownHook"/>

    <appender name="FILE_ASYNC" class="ch.qos.logback.classic.AsyncAppender">
        <queueSize>5000</queueSize>
        <discardingThreshold>0</discardingThreshold>
        <appender-ref ref="FILE" />
    </appender>

    <!-- the rest of your logback config -->

</configuration>

With this in place you'll notice the following log message is emitted when Logback is configuring itself:

INFO in ch.qos.logback.core.joran.action.ShutdownHookAction - About to instantiate shutdown hook of type [ch.qos.logback.core.hook.DelayingShutdownHook]

Best Answer

Related Solutions

C# – How to change the Page Title in ASP.Net 1.1

Spring-boot – Define logback shutdown hook in Spring Boot

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