Metranome is a timer for AMQP systems, like a metronome. It exists to replace using Cron to signal starting a task.

Cron works well for single servers although becomes more difficult to manage when multiple computers and processes are used. Metranome allows you to have a single signal to begin a task.

Metranome will publish an event every minute. Listeners can bind to the topic exchange metranome with the routing key matching the year.month.day.day_of_week_int.hour.minute.

day_of_week_int is 0-6, Monday-Sunday.

If you want a task to run every minute bind to: *.*.*.*.*.*.

If you want a task to run every hour bind to: *.*.*.*.*.0.

If you want a task to run every 5 minutes bind to:

*.*.*.*.*.0
*.*.*.*.*.5
*.*.*.*.*.10

...

*.*.*.*.*.55

• Clone the project
• Copy local.config.example to local.config and add your RabbitMQ host
• Make the development environment make virtualenv requirements
• Hack away!

Useful: You can run tests make test Run Metranome make main