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by gizzlon 2000 days ago
Not parent, but how about a load ballancer and VM's? =) Or, if you have 1 machine I believe you can do things in Linux / BSD to start a new binary without killing ongoing connections to the old process.

Edit: Oh, or you know, just don't? Maybe no-one will notice 5 secs of downtime :P depends ..
2 comments
spockz 2000 days ago
You can use SO_REUSEADDR and SO_REUSEPORT to bind multiple instances to the same port. This means you will be using the Linux network stack as load balancer though.
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antoinealb 2000 days ago
Even if you have only 1 machine, you could deploy a reverse proxy in front of it (think nginx, haproxy and co). Then you can start your application on two different endpoints, and instruct your load balancer to go from one to the other. Nginx supports live reloading of configuration, I think that should work.
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