Re: Upgrading and streaming replication

Hi,

On Tue, 2012-09-25 at 14:22 -0700, Steve Crawford wrote:
> "...it is likely that running different minor release levels on
> primary
> and standby servers will work successfully. However, no formal
> support
> for that is offered and you are advised to keep primary and standby
> servers at the same release level as much as possible. When updating
> to
> a new minor release, the safest policy is to update the standby
> servers
> first — a new minor release is more likely to be able to read WAL
> files
> from a previous minor release than vice versa."
>
> My mental translation of this is "...try updating the standby first
> and  hope it works - if not and you at some point find your standby is
> scrod,  you're on your own...we warned you..."

I would translate it as: "Newer minor releases will be compatible with
the previous versions, so receving xlogs from older releases will be
supported. Upgrade standby first, and then the master server"

Regards,
--
Devrim GÜNDÜZ
Principal Systems Engineer @ EnterpriseDB: http://www.enterprisedb.com
PostgreSQL Danışmanı/Consultant, Red Hat Certified Engineer
Community: devrim~PostgreSQL.org, devrim.gunduz~linux.org.tr
http://www.gunduz.org  Twitter: http://twitter.com/devrimgunduz