我的Golang应用程序中需要一个或多个sarama.SyncProducer吗？

Question

I am new in Golang, I need to write the app that will publish events to kafka, I can't find the answers on the following questions:

1. How many sarama.SyncProducer do I need?
2. Is it fine to use one across all app? Shall I have some kind of producer pool?

Answer 1

Unless you get the data to be published on a much higher rate than the publisher can publish it (?), given the sarama publisher is asynchronous and concurrent , I'd say you don't need more than one publisher. So to answer straight your questions:

1. I'd go with one, without knowing your requirements.
2. Yes. I'd imagine it's more likely that one needs a pool of consumers, given of course, there's high rate of messages being published.