Apache Active MQ

Omiiz Voice — Thu, 12 Sep 2024 07:28:09 +0000

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.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
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
Configure ActiveMQ
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

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

Create Tomcat Service
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

Docker Basic Commands

Omiiz Voice — Mon, 09 Sep 2024 12:24:44 +0000

Java Installation on different OS.

Omiiz Voice — Sat, 07 Sep 2024 14:52:16 +0000

Amazon Linux:
yum install java java-1.8.0 -y
yum install java-22-amazon-corretto.aarch64 -y

sudo dnf install java-17-amazon-corretto
sudo dnf install java-17-amazon-corretto-devel

Ubuntu:
sudo apt install fontconfig openjdk-17-jre

DEV Community: Omiiz Voice

Apache Active MQ

Docker Basic Commands

Java Installation on different OS.