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Demo nine: Manual Backoff

  • With the help of the RabbitMQ I implemented simple manual backoff system.

  • What it will do ?

    • If any message/job got failed, we will put it again in our queue so it can execute again.

    • Yes. We will pass x-retry-count in header, straightforward to solve by simply introducing some kind of counter to limit the number of attempts you try to process the message.

    • This solves the possible infinite loop of retrying the same message forever in case your code finds it impossible to process it.

    • After certain amount of retrying same message we will send that message to error_manual_backoff queue. So we can keep track of those failed message/job.

Running Locally

  • In terminal 1 start producer with following command:

    node producer.js

  • In terminal 2 start consumer with following command:

    node consumer.js