Stopping during recovery

Stopping during recovery

am 23.03.2010 12:18:37 von John Lister

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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/

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Hi, I've successfully set up a slave =
system using=20
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=20
maintenance for example) and resume the recovery without starting afresh =
and=20
making a complete backup of the original again?

Secondly is it possible to start the =
database in=20
"readonly" (using set default_transaction_read_only) and make a query =
before=20
resuming the recovery?

 

Thanks

 

John

--

 

Got needs? Get Goblin'! - href=3D"http://www.pricegoblin.co.uk/">http://www.pricegobli n.co.uk/<=
BR>


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Re: Stopping during recovery

am 23.03.2010 12:52:53 von Scott Mead

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On Tue, Mar 23, 2010 at 7:18 AM, John Lister
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-monitorin g
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

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On Tue, Mar 23, 2010 at 7:18 AM, John Lister an dir=3D"ltr"><john.lis=
ter-ps@kickstone.com
> wrote:
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ve system using=20
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>
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Is it possible to stop the database se=
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making a complete backup of the original again?
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Yes, it won't begin reading at the very first l=
ogfile, it will start based on your last checkpoint:




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Secondly is it possible to start the d=
atabase in=20
"readonly" (using set default_transaction_read_only) and make a q=
uery before=20
resuming the recovery?

N=
o, this feature is only available in 9.0 (which is in alpha) and beyond. iv>

--Scott M


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