Re: Avoiding unnecessary reads in recovery - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Avoiding unnecessary reads in recovery
Date
Msg-id 22144.1177598368@sss.pgh.pa.us
Whole thread Raw
In response to Re: Avoiding unnecessary reads in recovery  (Jim Nasby <decibel@decibel.org>)
Responses Re: Avoiding unnecessary reads in recovery  (Jim Nasby <decibel@decibel.org>)
List pgsql-hackers
Jim Nasby <decibel@decibel.org> writes:
> So what happens if a backend is running with full_page_writes = off,  
> someone edits postgresql.conf to turns it on and forgets to reload/ 
> restart, and then we crash? You'll come up in recovery mode thinking  
> that f_p_w was turned on, when in fact it wasn't.

One of the advantages of the proposed patch is that it avoids having to
make any assumptions like that.
        regards, tom lane


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