Re: pg_upgrade in primary/standby architecture

On Tue, Mar 18, 2014 at 11:49 PM, Murthy Nunna <mnunna(at)fnal(dot)gov> wrote:

Hi Venkata Balaji,
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> Thank you!
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> Yes, streaming replication cannot be setup between two different versions.
> That is true.
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> I am looking to upgrade both primary and standby with minimal outage to
> application..... I want to know if it is possible. If it is not possible, is
> there any architecture where we can minimize upgrade related outage?
>

In my previous email, i suggested/asked the possibility of using Slony
replication in your environment. It depends on lot of factors (database
size, number of tables, pl/pgsql code etc..) though. Please let us know
your thoughts on this. We can probably move further on this discussion.

Venkata Balaji N

Sr. Database Administrator
Fujitsu Australia