将Java应用程序移植到Go-有什么建议吗？

Question

We want to rewrite kodingen.com backend with Go which currently is Java, running as daemon using jsvc.

I have never touched any C in my life, am only experienced in Java so I don't know if this is something that I should even start.

However, task is pretty simple

• read shell commands from mysql database
• queue and execute them in parallel
• save each shell output to the database

that's it. So these simple requirements gives me hope that I can start using this wonderful language.

What would you advise? Is C still better ?

Answer 1

I like Go a lot and have made contributions to the project. However, I think you ought to consider a few things about Go before settling on it for sure.

• Go is still an unstable language. Its syntax, features, and packages are all subject to change. Make sure you're ready to keep up with this if you choose to use it.
• Go's garbage collection is still immature. Your memory usage should be better than 1.2 GB, but it probably won't get you near C levels.
• There's no core support for MySQL (or any other database). There are several unofficial MySQL package projects. The most recently updated ones are GoMySQL and Go-MySQL-Client-Library. I don't know anything about how complete or stable they are.

As for queuing and executing in parallel, I think that's something Go will be able to do pretty well. You'll probably use the exec package to execute and parallelize with goroutines.