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Re: PITR performance costs

From: Dave Cramer <pg(at)fastcrypt(dot)com>
To: Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
Cc: postgresql performance list <pgsql-performance(at)postgresql(dot)org>
Subject: Re: PITR performance costs
Date: 2007-05-28 18:48:55
Message-ID: (view raw or whole thread)
Lists: pgsql-performance

Don't the archived logs have to be copied as well as the regular WAL  
logs get recycled ?

On 28-May-07, at 12:31 PM, Heikki Linnakangas wrote:

> Dave Cramer wrote:
>> Since PITR has to enable archiving does this not increase the  
>> amount of disk I/O required ?
> There's no difference in normal DML operations, but some bulk  
> operations like CREATE INDEX that don't otherwise generate WAL,  
> need to be WAL logged when archiving is enabled.
> -- 
>   Heikki Linnakangas
>   EnterpriseDB

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