Golang后台处理

Question

How can one do background processing/queueing in Go?

For instance, a user signs up, and you send them a confirmation email - you want to send the confirmation email in the background as it may be slow, and the mail server may be down etc etc.

In Ruby a very nice solution is DelayedJob, which queues your job to a relational database (i.e. simple and reliable), and then uses background workers to run the tasks, and retries if the job fails.

I am looking for a simple and reliable solution, not something low level if possible.

Answer 1

While you could just open a goroutine and do every async task you want, this is not a great solution if you want reliability, i.e. the promise that if you trigger a task it will get done.

If you really need this to be production grade, opt for a distributed work queue. I don't know of any such queues that are specific to golang, but you can work with rabbitmq, beanstalk, redis or similar queuing engines to offload such tasks from your process and add fault tolerance and queue persistence.