Restart crashed processes

[tomwhoiscontrary]

Restart crashed processes

[ddollar]

I'd consider this but there are lots of edge cases. What happens if the app crashes on start? Do we retry only a certain number of times? In a certain time period? If the crashing is non-recoverable but temporary (lose network connection) does we eventually stop thrashing? Do we need some sort of exponential backoff?

My original intention with not including this behavior was both because it can get quite complicated and to discourage foreman's use in production as a process supervisor.

I feel less strongly about the production with forego (ruby always felt way too heavy for that sort of job) but I'm curious how we resolve the edge cases.

[tomwhoiscontrary]

Hang on, does forego -r already do this?

I only discovered that by reading the code, so i'm not sure what it does. If it does what i want, can i change this issue to be a request/offer for improved documentation?

[tomwhoiscontrary]

With regards to edge cases, those are all good questions, but i don't think a lack of answers to them is a good reason not to implement a basic version of this. Indeed, having terrible handling of edge cases is probably a good thing if you want to discourage production use.

My use case is that i have a microservicey application written in Java with Spring, comprising 19 separate processes so far. If i want to change one process and restart it, at the moment, i have to restart every microservice; this being Spring, it takes several minutes to start everything up, even on a beefy iMac. The ability to restart a single process would make development much more comfortable.

Automatic restarts is one way of getting this, because i can kill the process i want to restart. A way to request restart of a particular process would also do it, but that sounds a lot more complicated.

[tomwhoiscontrary]

Okay, so -r does do what i want, but it was broken until 9372bb8. There isn't a release with 9372bb8 in; the latest is v0.16.1, which was db3ef40, a couple of months before.

What do you say i PR in an expanded long description for the start command, then you cut a new release?

[ddollar]

Sounds good