apoorwanand/rec repository overview

Rabbitmq Spring Tutorials : java -jar .*.jar --spring.profiles.active=

This project implements each of the 6 RabbitMQ Tutorials⁠ using Spring AMQP.

It is a CLI app that uses Spring Profiles to control its behavior. Each tutorial is a trio of classes: sender, receiver, and configuration.

⁠Prerequisites

These tutorials assume RabbitMQ is installed⁠ and running on localhost using the standard port (5672). In case you use a different host, port or credentials, connections settings would require adjusting.

⁠Usage

These tutorials use Maven. To build them run

./mvnw clean package

The app uses Spring Profiles to control what tutorial it's running, and if it's a Sender or Receiver. Choose which tutorial to run by using these profiles:

• {tut1|hello-world},{sender|receiver}
• {tut2|work-queues},{sender|receiver}
• {tut3|pub-sub|publish-subscribe},{sender|receiver}
• {tut4|routing},{sender|receiver}
• {tut5|topics},{sender|receiver}
• {tut6|rpc},{client|server}

After building with maven, run the app however you like to run boot apps.

For example:

java -jar target/rabbitmq-tutorials.jar --spring.profiles.active=work-queues,sender

will run the publisher part of tutorial 2 (Work Queues).

For tutorials 1-5, run the consumer (receiver) followed by the publisher (sender):

# shell 1
java -jar spring-amqp.jar --spring.profiles.active=work-queues,receiver
java -jar spring-amqp.jar --spring.profiles.active=topics,sender
java -jar spring-amqp.jar --spring.profiles.active=topics,receiver

# shell 2
java -jar target/rabbit-tutorials-*.jar --spring.profiles.active=work-queues,sender

For tutorial 6, run the server followed by the client.

##C onfiguration

When running receivers/servers it's useful to set the duration the app runs to a longer time. Do this by setting the tutorial.client.duration property.

java -jar rabbitmq-tutorials.jar --spring.profiles.active=tut2,receiver,remote --tutorial.client.duration=60000

By default, Spring AMQP uses localhost to connect to RabbitMQ. In the sample, the remote profile causes Spring to load the properties in application-remote.yml that are used for testing with a non-local server. Set your own properties in the one in the project, or provide your own on the command line when you run it.

top -b -n 1 > top.txt write a cron job for taking snapshots

top -hv | -bcEHiOSs1 -d secs -n max -u|U user -p pid(s) -o field -w [cols] top -p 5173 9176 -b -n30 > cron.txt