James,
You really, really, really should upgrade to a more recent
release. The list of improvements and bugfixes is long and
well worth having. 8.1 was released 4 years ago. If you
cannot, please, please make certain that you are running
the latest point release -- regardless of what is shipping
with RHEL5.
Good luck,
Ken
On Tue, Aug 18, 2009 at 11:27:40AM -0400, james bardin wrote:
> Hello,
>
> I'm working on a warm standby system, and we would like to stick with
> the RHEL5 distributed version of postgres, which is still 8.1.
>
> I can setup the system to a point where it's adequate for disaster
> recovery, but I'm not comfortable keeping the systems in sync for
> failover, maintenance, or testing. I'm familiar with the newer
> versions, and most documentation for this doesn't mention 8.1 any
> more.
>
> Could someone confirm if this is what I need to do on 8.1?
> - Create backup, and send to standby server.
> - Ship WALs with archive_command
> - When we need to switch over; shutdown, sync pg_xlog, and do a
> recovery on the new server.
>
> If I have to sync pg_xlog and recover anyway to get the latest
> transactions, should I forgo shipping the WAL archives? Switching
> between servers should be rare, but I want something that admins
> without postgres experience can handle.
>
> Should I resort to slony?
> Use the latest version from the postgres yum repo, and vet it locally?
>
> Thanks
> -jim
>
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