> -----Ursprüngliche Nachricht----- > Von: Michael Paquier <michael@paquier.xyz> > Gesendet: Freitag, 6. Dezember 2019 02:43 > An: Zwettler Markus (OIZ) <Markus.Zwettler@zuerich.ch> > Cc: Stephen Frost <sfrost@snowman.net>; pgsql-general@lists.postgresql.org > Betreff: Re: archiving question > > On Thu, Dec 05, 2019 at 03:04:55PM +0000, Zwettler Markus (OIZ) wrote: > > What do you mean hear? > > > > Afaik, Postgres runs the archive_command per log, means log by log by log. > > > > How should we parallelize this? > > You can, in theory, skip the archiving for a couple of segments and then do the > operation at once without the need to patch Postgres. > -- > Michael
Sorry, I am still confused.
Do you mean I should move (mv * /backup_dir) the whole pg_xlog directory away and move it back (mv /backup_dir/* /pg_xlog) in case of recovery?
No, *absolutely* not.
What you can do is have archive_command copy things one by one to a local directory (still sequentially), and then you can have a separate process that sends these to the archive -- and *this* process can be parallelized.