Re: Major Version Upgradation in Replication Environment

On Thu, May 5, 2016 at 03:59:00PM +0200, Guillaume Lelarge wrote:
> 2016-05-05 11:48 GMT+02:00 Vicky Soni - Quipment India <vicky(dot)soni(at)quipment(dot)nl>
> :
>
>
> Hello Friends,
>
>  
>
>                         We have a windows setup where we have 2 node
> primary-slave setup which comprises Async Replication + Log Shippin on slave.
>
>  
>
> Now we want to upgrade it from 9.3 to 9.4 version.
>
>  
>
> Do we need to upgrade slave to 9.4, upgrade master to 9.4 and setup replication
> again from scratch?
>
>  
>
>
>
> Just upgrade master to 9.4, install 9.4 on slave, and setup replication again.
>  
>
> What are the best possible ways available to upgrade slave and master without
> setting up replication again?
>
>
>
> You can't.

Actually, the 9.5 pg_upgrade docs have in insructions on how upgrade a
slave without recreating the slave image, and it works back to 9.1:

http://www.postgresql.org/docs/9.5/static/pgupgrade.html
Upgrade Streaming Replication and Log-Shipping standby servers

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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