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Re: need help for PostgreSQL consistency check mechanism

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On Fri, 2009-04-24 at 09:03 +0800, Chen, Dongdong (GE Healthcare) wrote:
> What is the mechanism about automatic recovery when startup? I read the
> PostgreSQL document and didnt find anything about this. can you specify
> that, pls?

http://www.postgresql.org/docs/8.3/static/wal-intro.html

Sincerely,

Joshua D. Drake


> Thank you so much!
> 
> 
> B.R.
>  
> ChenDongdong
> 
> -----Original Message-----
> From: Alvaro Herrera [mailto:alvherre@xxxxxxxxxxxxxxxxx] 
> Sent: Friday, April 24, 2009 8:22 AM
> To: Chen, Dongdong (GE Healthcare)
> Cc: pgsql-general@xxxxxxxxxxxxxx
> Subject: Re:  need help for PostgreSQL consistency check
> mechanism
> 
> Chen, Dongdong (GE Healthcare) wrote:
> > We are now working on database check mechanism in our application. The
> 
> > situation is when server shutdown abnormally, the postmaster.pid file 
> > still exists when reboot, But the PostgreSQL database itself may not 
> > be damaged. We just do not want to restore from backups when the 
> > database is still good even if server shutdown abnormally. If the 
> > PostgreSQL database records are damaged for sure when server reboots, 
> > then the restoration should be executed automatically.
> 
> Just start it up.  If there is recovery to execute, it'll be done
> automatically.
> 
> -- 
> Alvaro Herrera
> http://www.CommandPrompt.com/
> PostgreSQL Replication, Consulting, Custom Development, 24x7 support
> 
-- 
PostgreSQL - XMPP: jdrake@xxxxxxxxxxxxxxxxxxxxx
   Consulting, Development, Support, Training
   503-667-4564 - http://www.commandprompt.com/
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