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Re: Question to safe way for minor update

From: "Thomas Papke" <tp(at)thopap(dot)de>
To: "Peter Eisentraut" <peter_e(at)gmx(dot)net>
Cc: pgsql-admin(at)postgresql(dot)org, "Thomas Papke" <tp(at)thopap(dot)de>
Subject: Re: Question to safe way for minor update
Date: 2007-02-13 21:08:17
Message-ID: 1001305.64504.62.214.193.211.1171400897.squirrel@webmailer.hosteurope.de (view raw or flat)
Thread:
Lists: pgsql-admin
Thank you,

Then i'll try something like this for configure:
./configure CFLAGS='-march=opteron -O2 -pipe'

AN other question: Are the postgres datafiles (not the dump) platform
independ? So is it possible to just copy the datafiles from linux to a
windows machine if they are running the same postgres version?

Thomas


> Thomas Papke wrote:
>> 1. i am running a large postgres 8.1.4 database in production. What
>> is a good and safe way for an minor update to 8.1.8 (less downdown
>> and possible jump back option)?
>
> Using binary packages, install the new one over the old one, and if you
> don't like it, install the old one over the new one.
>
>> How riskful is an minor update for the data files?
>
> Not riskful.
>
>> 2. i am using two dualcore opterons with 8GB memory - if i am using
>> the CFLAGS="-O2" option for compile optimization --> is there any
>> real performance boost?
>
> I don't think anyone has ever seriously considered building with
> anything less than -O2 for anything but debugging purposes or coping
> with buggy compilers on rare architectures.  In other words, there
> isn't any good reason not to do it.
>
> --
> Peter Eisentraut
> http://developer.postgresql.org/~petere/
>
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