| From: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
|---|---|
| To: | Ulas Albayrak <ulas(dot)albayrak(at)gmail(dot)com> |
| Cc: | rod(at)iol(dot)ie, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Re: Moving a live production database to different server and postgres release |
| Date: | 2010-06-14 20:20:44 |
| Message-ID: | AANLkTil1YGOk_OGqaYwZ5sizoW-TbsxwwzYorqPn0iHS@mail.gmail.com |
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| Lists: | pgsql-general |
On Mon, Jun 14, 2010 at 7:33 AM, Ulas Albayrak <ulas(dot)albayrak(at)gmail(dot)com> wrote:
> OK,
>
> I see. Does this mean I need to install Slony-I 1.x on both systems or
> is different versions of Slony-I, say a 2.x and a 1.x, compatible? The
> reason I'm asking is because the new server db will be part of a
> permanent postgres replication system in the future and installing a
> newer verision of Slony-I would spare me some future work.
Slony I 2.x is still not quite ready for production anyway (but it's
getting close) so you're better off with Slony I 1.2.x anyway. If the
older version of pgsql needs an older slony, then you'd have to go
back to Slony I 1.0.x or 1.1.x or whatever to migrate, then you could
upgrade to Slony I 1.2.latest.
We do all our migrations / upgrades with slony I 1.2.x and it works
like a champ, with total downtime measured in seconds or minutes for
the switchover.
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