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Stopping during recovery
2+ messages / 2 participants
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* Stopping during recovery
@ 2010-03-23 11:18 John Lister <john.lister-ps@kickstone.com>
  2010-03-23 11:52 ` Re: Stopping during recovery Scott Mead <scott.lists@enterprisedb.com>
  0 siblings, 1 reply; 2+ messages in thread

From: John Lister @ 2010-03-23 11:18 UTC (permalink / raw)
  To: pgsql-admin

Hi, I've successfully set up a slave system using WAL archiving and pg_standby, but I have a couple of questions.

I have a couple of questions:

Is it possible to stop the database server (for maintenance for example) and resume the recovery without starting afresh and making a complete backup of the original again?
Secondly is it possible to start the database in "readonly" (using set default_transaction_read_only) and make a query before resuming the recovery?

Thanks

John
--

Got needs? Get Goblin'! - http://www.pricegoblin.co.uk/

^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* Re: Stopping during recovery
  2010-03-23 11:18 Stopping during recovery John Lister <john.lister-ps@kickstone.com>
@ 2010-03-23 11:52 ` Scott Mead <scott.lists@enterprisedb.com>
  0 siblings, 0 replies; 2+ messages in thread

From: Scott Mead @ 2010-03-23 11:52 UTC (permalink / raw)
  To: John Lister <john.lister-ps@kickstone.com>; +Cc: pgsql-admin

On Tue, Mar 23, 2010 at 7:18 AM, John Lister
<john.lister-ps@kickstone.com>wrote:

>  Hi, I've successfully set up a slave system using WAL archiving and
> pg_standby, but I have a couple of questions.
>
> I have a couple of questions:
>
> Is it possible to stop the database server (for maintenance for example)
> and resume the recovery without starting afresh and making a complete backup
> of the original again?
>

Yes, it won't begin reading at the very first logfile, it will start based
on your last checkpoint:

  http://www.scottrmead.com/blogs/scott/warm-standby-monitoring
  http://www.kennygorman.com/wordpress/?p=249



> Secondly is it possible to start the database in "readonly" (using set
> default_transaction_read_only) and make a query before resuming the
> recovery?
>

No, this feature is only available in 9.0 (which is in alpha) and beyond.

--Scott M

^ permalink  raw  reply  [nested|flat] 2+ messages in thread


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2010-03-23 11:18 Stopping during recovery John Lister <john.lister-ps@kickstone.com>
2010-03-23 11:52 ` Scott Mead <scott.lists@enterprisedb.com>

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