On Wed, Nov 9, 2022 at 2:04 PM Justin Pryzby <pry...@telsasoft.com> wrote: > +data_sync_retry = on
Sharing with the list some clues that Justin and I figured out about what that part is doing. Without it, you get failures like: PANIC: could not open file "pg_logical/snapshots/0-14FE6B0.snap": No such file or directory That's been seen before: https://www.postgresql.org/message-id/flat/17827.1549866683%40sss.pgh.pa.us That thread concluded that the operating system must have a non-atomic rename(), ie a kernel bug. I don't know why Cygwin would display that behaviour and our native Windows build not; maybe timing, or maybe our own open() and rename() wrappers for Windows do something important differently than Cygwin's open() and rename(). On reflection, that seems a bit too flimsy to have in-tree without more investigation, which I won't have time for myself, so I'm going to withdraw this entry.
