Re: Backups over slave instead master?
От | bricklen |
---|---|
Тема | Re: Backups over slave instead master? |
Дата | |
Msg-id | CAGrpgQ9KmwZkbhxnoNYmEP7tQNGYw1b1ioSGsosQr04PYi3kDg@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Backups over slave instead master? (Shaun Thomas <sthomas@optionshouse.com>) |
Ответы |
Re: Backups over slave instead master?
Re: Backups over slave instead master? |
Список | pgsql-general |
On Thu, May 1, 2014 at 8:54 AM, Shaun Thomas <sthomas@optionshouse.com> wrote:
On 05/01/2014 10:31 AM, Edson Richter wrote:If you're on PostgreSQL 9.3, you can backup the slave server safely. If not, you'll need to run this command on the master system first:I'm wondering if would be possible to execute these backups in the slave
server instead, so I can avoid the overhead of backups on master system?
SELECT pg_start_backup('some-label');
After the backup is done, run this on the master server:
SELECT pg_stop_backup();
Or alternatively, if "backup" = pg_dump, then backups can taken from the slave too. Have a look at pg_xlog_replay_pause() + pg_dump + pg_xlog_replay_resume().
http://www.postgresql.org/docs/current/static/functions-admin.html#FUNCTIONS-RECOVERY-CONTROL-TABLE
http://www.postgresql.org/docs/current/static/functions-admin.html#FUNCTIONS-RECOVERY-CONTROL-TABLE
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