On Thu, Jul 20, 2017 at 10:07 PM, Leonardo M. Ramé <l.r...@griensu.com> wrote: > El 20/07/17 a las 16:57, Andreas Kretschmer escribió: >> On 20 July 2017 21:46:09 GMT+02:00, "Leonardo M. Ramé" >> <l.r...@griensu.com> wrote: >>> >>> Hi, I wonder if archive_mode=on and archive_command parameters in >>> postgresql.conf are really needed for streaming replication between two >>> >>> servers (master-slave). >> >> No. > > So, can I just comment those commands and remove the main/archive directory?
"No" is not completely exact and lacks in details. There are two cases where having an archive is helpful: 1) The standby has disconnected from its primary for a time long enough that WAL segments have been rotated by two completed checkpoints. If that happens, when the standby reconnects it would fail, and you would need to take a new base backup. 2) Backup strategies. Keeping a larger history set of WAL segments is helpful for incremental backups, which is partially the point actually raised upthread about PITR. -- Michael -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
