goagain

I found that it corrupts the FD by using this call: https://github.com/rcrowley/goagain/blob/master/goagain.go#L... Not sure why it happens though, but it led to all sorts of strange intermittent issues with broken connections. Once I replaced this logic with passing files using GetFile().Fd() instead it started working fine, so beware of this. I still wonder why it happens though.

Goagain by Richard Crowley is a great package that we are using for graceful restarts: https://github.com/rcrowley/goagain EDIT: added author

If you're interested in zero down time for a go service, then check out goagain [1], inspired by Unicorn. It uses simple fd passing to restart itself, passing the listening socket. [1]: https://github.com/rcrowley/goagain

Great post. I've done some experimentation with Go for web dev, and encountered similar problems; it's such a delight to write code in that I'd love to use it in production, but can't justify spending a lot of time debugging the immature libraries and writing new ones, particularly not on the clock for clients. I too ran into a problem with null types in another library interfacing with postgresql. The weak points I found were: * Lack of an ORM (there are many, almost all incomplete, and lacking in some way) * Immature or incomplete db interface libraries * No db migrations (would love to see a simple sql-only solution here) * Package management is simple and elegant but without explicit versioning, so forking is the end result to ensure stability * No process pool management for running Go behind something like Apache or nginx. This goag