Re: Help in vetting my steps for Postgres DB upgrade from Ver 13.X to ver 15.X

On 12/2/24 15:52, Bharani SV-forum wrote:
> Adrian
>
> Proposed new Server is intended to have higher OS Version (centos ver
> 9.0) and higher Postgres Version 15.10

Alright I did not catch this " ... with new OS" from your original post.
I saw "Take offline full backup (PG_DATA folder alone) using OS
command" and "Restore offline full backup (PG_DATA folder alone) using
OS command" and assumed like to like on the OS, my mistake.

>
> Does logical replication will have issues , if the existing asis server
> is having Postgres ver 13.16.2 with Cent Os 7.0
> with the new server having higher OS version Centos Ver 9.0 and then
> propose to have the Postgres to be upgraded
> from ver 13.16.2 to 15.10

Logical replication would not have issue with this as that is one of
it's use cases. The question now becomes whether that is the quickest/
most efficient way to do this.

That depends on:

1) What is the size of database(s) you are dealing with?

2) What sort of downtime can you afford?

3) EC2 --> EC2, are they the same region?

>
> Hope u have understood my question
>
> On Monday, December 2, 2024 at 06:47:10 PM EST, Adrian Klaver
> <adrian(dot)klaver(at)aklaver(dot)com> wrote:
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com