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Re: 7.3.2 pg_restore very slow

This is a discussion on Re: 7.3.2 pg_restore very slow within the Pgsql Performance forums, part of the PostgreSQL category; --> Saranya Sivakumar wrote: > Hi All, > > I am trying to back up a full copy of one ...


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Old 04-19-2008, 09:13 AM
Richard Huxton
 
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Default Re: 7.3.2 pg_restore very slow

Saranya Sivakumar wrote:
> Hi All,
>
> I am trying to back up a full copy of one of our databases (14G) and
> restore it on another server. Both databases run 7.3.2 version.
> Though the restore completed successfully, it took 9 hours for the
> process to complete. The destination server runs Fedora Core 3 with
> 512 MB RAM and has 1 processor. I have also deferred referential
> intergrity checks during the restore. I tried to tune some parameters
> in the config file, but it still takes 9 hours.


Firstly, you should upgrade to the most recent version of 7.3.x (7.3.15)
- that's a *lot* of bug-fixes you are missing

Then, I would temporarily disable fsync and increase sort_mem and
checkpoint_segments. What you're trying to do is make a single process
run as fast as possible, so allow it to grab more resources than you
normally would.

--
Richard Huxton
Archonet Ltd

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