From: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
---|---|
To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org, Hannu Krosing <hannu(at)skype(dot)net>, Stephen Frost <sfrost(at)snowman(dot)net> |
Subject: | Re: Simplifying "standby mode" |
Date: | 2006-09-12 17:39:09 |
Message-ID: | 1158082749.2692.549.camel@holly |
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Lists: | pgsql-hackers pgsql-patches |
On Tue, 2006-09-12 at 13:25 -0400, Andrew Dunstan wrote:
> Simon Riggs wrote:
> >
> > In general, log shipping between servers running different release
> > levels will not be possible. However, it may be possible for servers
> > running different minor release levels e.g. 8.2.1 and 8.2.2 to
> > inter-operate successfully. No formal support for that is offered and
> > there may be minor releases where that is not possible, so it is unwise
> > to rely on that capability.
> My memory is lousy at the best of times, but when have we had a minor
> release that would have broken this due to changed format? OTOH, the
> Primary and Backup servers need the same config settings (e.g.
> --enable-integer-datetimes), architecture, compiler, etc, do they not?
> Probably working from an identical set of binaries would be ideal.
Not often, which is why I mention the possibility of having
interoperating minor release levels at all. If it was common, I'd just
put a blanket warning on doing that.
--
Simon Riggs
EnterpriseDB http://www.enterprisedb.com
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