On Tue, Oct 8, 2013 at 3:05 PM, 高健 <luckyjack...@gmail.com> wrote: > Hello: > > > > > > Thank you all for kindly replying my question. > > > I read the documentation about pg_basebackup. > > > The description says: > > The server must also be configured with max_wal_senders set high enough to > leave at least one session available for the backup. > > Dose it mean: > > If I am building a one master -- one slave environment, I need the > max_wal_sender to be at least 2. > > But I think pg_basebackup just use the one sender process temporarily, Is > that right? >
Yes. It would be used for the duration of backup. But, it maybe better to just reserve one slot for pg_basebackup if you intend to use it often instead of editing postgresql.conf every time you need to take backup. -- Amit -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
