Chapter 15. The Hello World Quickstart

Start the First Application Server Instance

1. Navigate to the Root Directory

   In the command line terminal, navigate to the root for your JBoss server directory.

2. Start the First Application Server

   Depending on your operating system, use the appropriate command from the following to start the first instance of your selected application server:

   1. For Linux:

      $JBOSS_HOME/bin/standalone.sh

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   2. For Windows:

      $JBOSS_HOME\bin\standalone.bat

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Start the Second Application Server Instance

1. Clone the Application Server

   Create a copy of the selected JBoss Server to create a second instance.

2. Navigate to the Root Directory

   In the command line terminal, navigate to the root for your JBoss server directory.

3. Start the Second Application Server

   Use the appropriate command for your operating system from the following commands. This command starts the server with the provided port offset to ensure that both the server instances run on the same host.

   1. For Linux:

      $JBOSS_HOME2/bin/standalone.sh -Djboss.socket.binding.port-offset=100

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   2. For Windows:

      $JBOSS_HOME2\bin\standalone.bat -Djboss.socket.binding.port-offset=100

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Build and Deploy the Hello World Quickstart

1. Navigate to the Required Directory

   In the command line terminal, navigate to the root directory of the quickstart on the command line interface.

2. Build and Deploy to the First Application Server Instance

   Use the following command to build and deploy the quickstart to the first application server instance as follows:

   # mvn clean package wildfly:deploy

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   This command deploys target/[path]jboss-helloworld-jdg.war to the first running server instance.

3. Build and Deploy the Second Application Server Instance

   Use the following command to build and deploy the quickstart to the second application server instance with the specified ports as follows:

   # mvn clean package wildfly:deploy -Dwildfly.port=10090

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   This command deploys target/[path]jboss-helloworld-jdg.war to the second running server instance.

Test Replication on the Application

1. Access the First Server

   Access the first application server and enter the key and value.

   1. Access the first application server in a browser window using the following URL:

      http://localhost:8080/jboss-helloworld-jdg

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   2. Insert the key foo.
   3. Insert the value bar.

2. Access the Second Server

   Access the second application server and enter the key and value.

   1. Access the second application server in a browser window using the following URL:

      http://localhost:8180/jboss-helloworld-jdg

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   2. Click Get Some.
   3. Get the key foo.
   4. Click Put Some More.
   5. Insert the key mykey.
   6. Insert the value myvalue.

3. Get All Keys and Values

   Access the first server and request all keys.

   1. Access the first application server in a browser window using the following URL:

      http://localhost:8080/jboss-helloworld-jdg

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   2. Click Get Some.
   3. Click Get All to request all key and values.

Remove the Application

1. Start the Application Servers

   Ensure that both server instances are running.

2. Navigate to the Root

   In the command line terminal, navigate to the root directory of the quickstart.

3. Remove the Archive

   Use the following commands to remove the archive from both the server instances.

   1. Remove the archive from the first server as follows:

      mvn wildfly:undeploy

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   2. Remove the archive from the second server as follows:

      mvn wildfly:undeploy -Dwildfly.port=10090

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