> 10 сент. 2021 г., в 19:19, Julien Rouhaud <rjuju...@gmail.com> написал(а):
> Wouldn't it be better to
> have a new archive_mode, e.g. "daemon", and have postgres responsible
> to (re)start it, and pass information through the daemon's
> stdin/stdout or something like that?
We don't even need to introduce new archive_mode.
Currently archive_command has no expectations regarding stdin\stdout.
Let's just say that we will push new WAL names to stdin until archive_command
exits.
And if archive_command prints something to stdout we will interpret it as
archived WAL names.
That's it.
Existing archive_commands will continue as is.
Currently information about what is archived is stored on filesystem in
archive_status dir. We do not need to change anything.
If archive_command exits (with any exit code) we will restart it if there are
WAL files that still were not archived.
Best regards, Andrey Borodin.
