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Thread: Major Version Upgradation in Replication Environment

Major Version Upgradation in Replication Environment

From
"Vicky Soni - Quipment India"
Date:

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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?

 

What are the best possible ways available to upgrade slave and master without setting up replication again?

 

Our Setup – WINDOWS SERVER 2012 , PostgreSQL 9.3.12 on primary and slave

Objective – To Upgrade Master and Slave from 9.3 to 9.4

 

 

 

Vicky Soni
Database Administrator

.Net Department

T / +91 (0) 93288 80507
vicky.soni@ / www.quipment.in

 

QTwee Group BV
KvK Arnhem 60858001
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mail@ / www.quipment.nl

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+31 (0)24 372 47 00

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+31 (0)24 372 47 07

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Re: Major Version Upgradation in Replication Environment

From
Guillaume Lelarge
Date:
2016-05-05 11:48 GMT+02:00 Vicky Soni - Quipment India <vicky.soni@quipment.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.







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Re: Major Version Upgradation in Replication Environment

From
Bruce Momjian
Date:
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.soni@quipment.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@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

+ As you are, so once was I. As I am, so you will be. +
+                     Ancient Roman grave inscription +

Re: Major Version Upgradation in Replication Environment

From
Guillaume Lelarge
Date:
2016-05-10 22:39 GMT+02:00 Bruce Momjian <bruce@momjian.us>:
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.soni@quipment.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


Well, you still have to rsync the data directory (and all tablespaces' directories). Though I agree you don't literaly have to do a complete setup.

Thanks for the clarification.


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