alt Hacker NewsWhy not hand off the fd to the new process spawned as a child? That’s how a lot of professional 0 downtime upgrades work: spawn a process, hand off fd & state, exit.
Why not hand off the fd to the new process spawned as a child? That’s how a lot of professional 0 downtime upgrades work: spawn a process, hand off fd & state, exit.
That's exactly what it's doing. The tricky part is the “hand off state” part.