[ClusterLabs] Pacemaker PostgreSQL cluster

Salvatore D'angelo sasadangelo at gmail.com
Tue May 29 16:25:15 EDT 2018


Regarding last question about pacemaker dependencies for Ubuntu I found this for 1.1.18:
https://launchpad.net/ubuntu/+source/pacemaker/1.1.18-0ubuntu2/+build/14818856 <https://launchpad.net/ubuntu/+source/pacemaker/1.1.18-0ubuntu2/+build/14818856>

It’s not clear to me why pacemaker 1.1.18 is available on launchpad.net and not on the official Ubuntu Search Packages website.
However, can I assume 1.1.19 and 2.2.0 have the same dependencies list (considering they have only removed deprecated function and applied some bug fixes)?
Thanks again for answers

> On 29 May 2018, at 17:41, Jehan-Guillaume de Rorthais <jgdr at dalibo.com> wrote:
> On Tue, 29 May 2018 14:23:31 +0200
> Salvatore D'angelo <sasadangelo at gmail.com> wrote:
> ...
>> 2. I read some documentation about upgrade and since we want 0 ms downtime I
>> think the Rolling Upgrade (node by node) is the better approach.
> The 0ms upgrade is almost impossible. At some point, you will have to move the
> master somewhere else.
> Unless you have some session management that are able to wait for the
> current sessions to finish, then hold the incoming sessions while you are
> moving the master, you will have downtime and/or xact rollback.
> Good luck anyway :)
> -- 
> Jehan-Guillaume de Rorthais
> Dalibo

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