On Tue, Jan 17, 2017 at 11:04 AM, Rick Jones <rick.jon...@hpe.com> wrote: >up unneeded resources in a more expedient fashion. > > > Drifting a bit, and it doesn't change the value of dealing with it, but out > of curiosity, when you say mostly in CLOSE_WAIT, why aren't the server-side > applications reacting to the read return of zero triggered by the arrival of > the FIN?
Even if the application reacts, and calls close(fd), kernel will still try to push the data that was queued into socket write queue prior to receiving the FIN. By allowing this RST, we can flush the whole data and react much faster, avoiding locking memory in the kernel for very long time.
