| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Jeff Davis <pgsql(at)j-davis(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Using pg_upgrade on log-shipping standby servers |
| Date: | 2012-07-19 16:02:58 |
| Message-ID: | 20120719160258.GB20583@momjian.us |
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| Lists: | pgsql-hackers |
On Thu, Jul 19, 2012 at 09:41:29AM -0400, Robert Haas wrote:
> On Thu, Jul 19, 2012 at 2:38 AM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> > No, the point is they run pg_upgrade on the stopped primary and stopped
> > standbys. Are those the same? I am not really sure.
>
> Of course not.
OK, but why? When the clusters are stopped they are the same, you are
running the same initdb on both matchines, and running the same
pg_upgrade. What would cause the difference, other than the Database
System Identifier, which we can deal with? I don't think we can
guarantee they are the same, but what would guarantee they are
different?
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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