[swift-dev] [stdlib] Error recovery hook #12025

[Joe Groff]

> On Sep 21, 2017, at 11:01 AM, Alex Blewitt via swift-dev <swift-dev at swift.org> wrote:
> 
> One of the key reasons why you would want to handle those situations is that you may have a leak or other resources, but you may also be handling 99,999 other requests at the same time that you don't want to drop on the floor.
> 
> Even if you put the server into some kind of degraded mode (for example, taking it out of load balancer rotation) and let the requests drain naturally, it's still a lot better than terminating everything immediately.
> 
> This isn't an issue in single-user applications but when you have hundreds/thousands of simultaneous users it does limit where crashing the process makes sense.
> 
> (Of course, if the server really is deadlocked, then it's going to go down anyway; but if other parts can continue running then why not?)

There's a thread for this topic on swift-evolution. It'd be good to keep the discussion focused there.

-Joe