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

Ron/AdrianThanks for your input.Your suggestion is
option#1 ASIS-existing server = EC2 with Community PostgreSQL Ver 13.16.2*-  ensure to capture all the pre.req meant for ver 15.10 are being  met.
     - enable logical replication tagged to proposed new EC2 server (with newer Higher OS Version ).

Proposed-new EC2 server (with new Operating System version along
    Postgres Ver 13.16.2 and 15.10 Binaries)*     - install postgres 13.16.2 binaries
    - have postgres setup on par with existing setup and having proper logical replication 
    - install postgres 15.10 binaries     - ensure to DISABLE auto startup and shutdown of postgres 13.16.2
      - ensure to DISABLE auto startup and shutdown of postgres 15.10    - start postgres db ver 13.16.2 and ensure all are good. no errors in postgres log file
    -  start performing pg_upgrade step to upgrade postgres from ver 13.16.2 to 15.10
pl Vet the newer steps (revised version).

RegardsBharani
On Monday, December 2, 2024 at 05:48:19 PM EST, Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> wrote:

On 12/2/24 14:46, Adrian Klaver wrote:
> On 12/2/24 14:31, Ron Johnson wrote:
>> On Mon, Dec 2, 2024 at 5:18 PM Bharani SV-forum
>> <esteembsv-forum(at)yahoo(dot)com <mailto:esteembsv-forum(at)yahoo(dot)com>> wrote:
>>
>>     Team
>>     Pl Help in vetting my steps for Postgres DB upgrade from Ver 13.X to
>>     ver 15.X
>>
>>     Env = EC2 based Community PostgreSQL Ver 13.16.2
>>
>>     we will be performing upgrade of our EC2 server too along with new
>> OS.
>>
>>     Need help in vetting my steps for Postgres DB upgrade from Ver 13.X
>>     to ver 15.X
>>     *ASIS-existing server = EC2 with Community PostgreSQL Ver 13.16.2*
>>     - ensure to capture all the pre.req meant for ver 15.10 are being
>> met.
>>     - shutdown db.
>>     - take offline full backup (PG_DATA folder alone)  using OS command
>>
>>     *Proposed-new EC2 server (with new Operating System version along
>>     Postgres Ver 15.10 Binaries)*
>>     - install postgres 15.10 binaries
>>     - ensure to DISABLE auto startup and shutdown of postgres 15.10
>>     -  Restore offline full backup (PG_DATA folder alone) using OS
>> command
>>     -  start performing pg_upgrade step to upgrade postgres from ver
>>     13.16.2 to 15.10
>>
>>     please guide me, if i have missed any steps in the abovesaid process
>>
>>     To start new DB features, planning to rollout out the following
>>     feature's alone
>>     a) TLE extension for password compliance
>>     b) parallelize vacuum jobs to utilize -j option
>>
>>
>> To migrate from one server to another while upgrading, one must use
>> pg_dump/pg_restore OR Logical Replication.
>
> Really?
>
> Then this:
>
> https://www.postgresql.org/docs/current/pgupgrade.html
>
> must be random nose.

Oh yeah, that was smooth.

Second attempt:

... must be random noise.

>
>>
>> --
>> Death to <Redacted>, and butter sauce.
>> Don't boil me, I'm still alive.
>> <Redacted> lobster!
>

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