Re: Online base backup from the hot-standby

From: Jun Ishiduka <ishizuka(dot)jun(at)po(dot)ntts(dot)co(dot)jp>
To: ssinger_pg(at)sympatico(dot)ca
Cc: heikki(dot)linnakangas(at)enterprisedb(dot)com, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Online base backup from the hot-standby
Date: 2011-06-28 05:52:52
Message-ID: 201106280552.p5S5qsSi025889@ccmds32.silk.ntts.co.jp
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers


> Considering everything that has been discussed on this thread so far.
>
> Do you still think your patch is the best way to accomplish base backups
> from standby servers?
> If not what changes do you think should be made?

I reconsider the way to not use pg_stop_backup().

Process of online base backup on standby server:
1. pg_start_backup('x');
2. copy the data directory
3. copy *pg_control*

Behavior while restore:
* read "Minimum recovery ending location" of the copied pg_control.
* use the value with the same purposes as the end-of-backup location.
-> When the value is equal to 0/0, this behavior do not do.
This situation is to acquire backup from master server.

--------------------------------------------
Jun Ishizuka
NTT Software Corporation
TEL:045-317-7018
E-Mail: ishizuka(dot)jun(at)po(dot)ntts(dot)co(dot)jp
--------------------------------------------

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Heikki Linnakangas 2011-06-28 06:44:47 Re: SSI modularity questions
Previous Message Magnus Hagander 2011-06-28 05:49:00 Re: pgsql: Branch refs/heads/REL9_1_STABLE was removed