reinstall postgreSQL same version while server up and running possible under linux ?

From: Gerhard Hintermayer <gerhard(dot)hintermayer(at)gmail(dot)com>
To: pgsql-admin <pgsql-admin(at)postgresql(dot)org>
Subject: reinstall postgreSQL same version while server up and running possible under linux ?
Date: 2010-11-02 12:59:49
Message-ID: AANLkTikGjHDw-Vut1WCM_4P4t6n47b4g99vfpru=fLJF@mail.gmail.com
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Sorry for posting this again, but my last post regarding this
problematic wasn't answered satisfyingly. (maybe I didn't find the
right words for my question ;-) )

is this (or a minor upgrade) a "safe" way to go under linux ? I'm on a
production system and I don't want to restart the DB server while the
factory is in production, but be sure that i'm prepared the next time
I'll do a restart. Of course I could wait for a factory shutdown on a
weekend, stop server, upgrade/reinstall and restart, but I'd prefer a
"on the fly upgrade".
(this is required due to a changed upstream library dependancy (major
perl upgrade) running gentoo)

regards
Gerhard

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