Apache Active MQ

ActiveMQ and Tomcat Setup

Launch Instance with Volumes
Launch an EC2 instance with two EBS volumes.
Mount the secondary volume to /opt.
Install ActiveMQ and mysql-connector
Download the ActiveMQ package from the official website:
wget https://www.apa…


This content originally appeared on DEV Community and was authored by Omiiz Voice

ActiveMQ and Tomcat Setup

  1. Launch Instance with Volumes
  2. Launch an EC2 instance with two EBS volumes.
  3. Mount the secondary volume to /opt.
  4. Install ActiveMQ and mysql-connector
  5. Download the ActiveMQ package from the official website: wget https://www.apache.org/dyn/closer.cgi?filename=/activemq/6.1.3/apache-activemq-6.1.3-bin.tar.gz&action=download
    • Extract the tar file into the /opt directory: tar -xzf apache-activemq-6.1.3-bin.tar.gz -C /opt
  6. Download the mysql-connector and extract it. wget https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-j-9.0.0.tar.gz tar -xzvf mysql-connector-j-9.0.0.tar.gz
  7. Configure ActiveMQ
  8. Update the ActiveMQ configuration file: vim /opt/apache-activemq-6.1.3/conf/activemq.xml
    • Modify the following: • Change the broker name • Change the PersistenceAdapter block with jdbc to use mysql as its database. • Remove all the transportConnector expect the openwire.




• Add this lines at the end of file before








  1. Update Jetty Configuration
    • Edit the Jetty configuration file and modify the host as follows: vim /opt/apache-activemq-6.1.3/conf/jetty.xml
    • Change the line:
    • Create ActiveMQ Service
    • Create a systemd service file for ActiveMQ: vim /etc/systemd/system/activemq.service
    • Content of the service file: [Unit] Description=Apache ActiveMQ Message Broker After=network-online.target

[Service]
Type=forking
User=activemq
Group=activemq
WorkingDirectory=/opt/apache-activemq-6.1.3/bin
ExecStart=/opt/apache-activemq-6.1.3/bin/activemq start
ExecStop=/opt/apache-activemq-6.1.3/bin/activemq stop
Restart=on-abort

[Install]
WantedBy=multi-user.target

  • Enable and start the ActiveMQ service: systemctl enable activemq.service systemctl start activemq.service
    1. Install Java
    2. Install Java 22 and Java 8: yum install java java-1.8.0 -y
  • Create a symbolic link for Java 8: ln -s /usr/lib/jvm/java-1.8.0-amazon-corretto.aarch64/jre/bin/java /usr/bin/java8
    1. Install Tomcat 9
    2. Download Tomcat 9 from the official website: wget https://dlcdn.apache.org/tomcat/tomcat-9/v9.0.93/bin/apache-tomcat-9.0.93.tar.gz
  • Extract the tar file into the /opt directory: tar -xzf apache-tomcat-9.0.93.tar.gz -C /opt
    • Rename the extracted directory: mv /opt/apache-tomcat-9.0.93 /opt/notification_tomcat
    • Configure Tomcat
    • Edit the catalina.sh file: vim /opt/notification_tomcat/bin/catalina.sh
    • Add the following configuration: JAVA_HOME="/usr/lib/jvm/java-1.8.0-amazon-corretto.aarch64/jre/" CATALINA_OPTS="-Xmx512m -Xss256m -Xms256m -XX:PermSize=256m -XX:MaxPermSize=512m -XX:NewSize=128m" JAVA_OPTS="$JVM_OPTS -Dproperties.filepath=$CATALINA_BASE/conf/learningPlatform.properties -Dexclusion.properties=$CATALINA_BASE/conf/exclusion.properties" CATALINA_OPTS="$CATALINA_OPTS -Dinstance_base=$CATALINA_BASE -Dfile.encoding=UTF-8"
  • Clean Up Tomcat
    • Delete the existing files from the webapps directory: rm -rf /opt/notification_tomcat/webapps/*
    • Migrate Application
    • Copy the notification-consumer directory from the old server to the new server's webapps directory.
    • Update Configuration Files
    • Add the learningPlatform.properties and exclusion.properties files in the conf directory: vim /opt/notification_tomcat/conf/learningPlatform.properties #Notification Consumer will connect to the below ActiveMQ notification.broker.url=failover:(tcp://test-activemq1.loudcloudsystems.com:61612,tcp://test-activemq2.loudcloudsystems.com:61612)?initialReconnectDelay=100

vim /opt/notification_tomcat/conf/exclusion.properties

to=@gail.com,@fake.com,@v.l,@qq.com

  1. Create Tomcat Service
  2. Create a systemd service file for Tomcat: vim /etc/systemd/system/tc_notification.service
    • Content of the service file: [Unit] Description=Apache Tomcat 9 Web Application Server After=network.target

[Service]
Type=forking
Environment="JAVA_HOME=/usr/bin/java8"
Environment="CATALINA_PID=/opt/notification_tomcat/temp/tomcat.pid"
Environment="CATALINA_HOME=/opt/notification_tomcat"
Environment="CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC"
ExecStart=/opt/notification_tomcat/bin/startup.sh
ExecStop=/opt/notification_tomcat/bin/shutdown.sh
User=root
Group=root
RestartSec=10
Restart=always

[Install]
WantedBy=multi-user.target

  • Enable and start the Tomcat service: systemctl enable tc_notification.service systemctl start tc_notification.service
  • Verify Setup
    • Once both services are active, verify the ActiveMQ setup by accessing the web interface: http://:8161


This content originally appeared on DEV Community and was authored by Omiiz Voice


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