Stanislav Bashkyrtsev <stanislav.bashkirt...@gmail.com> writes: >> Why do you think postgres quits?
> The process was running and then it stopped. And in the console I see: > 2022-01-03 23:23:29.495 MSK [76717] LOG: checkpoint starting: shutdown > immediate In a standalone backend, I think there are only 3 ways to get to normal shutdown: * SIGTERM * SIGQUIT * EOF on stdin It's not very clear which of those your setup is triggering. In any case, debugging standalone mode is very very rarely what you should be doing; it's only vaguely related to normal operation, plus you lack all the creature comforts of psql. The usual thing is to start a normal interactive session, find out the PID of its connected backend process ("select pg_backend_pid()" is a reliable way), and then attach to that process with GDB or your debugger of choice. regards, tom lane