Re: DR setup in RHOS

Hi Rajesh

Question: Do you need streaming replication to this new DR primary Node
from the previous DR Cluster?

Take a base backup from your existing primary DR PG instance using*
pg_basebackup or pgBackRest. *

Transfer this backup to your new DR site.

Restore the backup to your new DR PostgreSQL instance. Ensure that the
recovery settings (like* restore_command)* are properly configured to fetch
WAL files.

Configure your primary PostgreSQL instance to archive WAL files.

Enable streaming replication for the standby node as you have made changes
in conf in previous DR.

Then

You have to do it manually by installing PGbouncer and Patroni.

You can use the `patroni.yaml` file from the previous DR setup, adjust it
for the new DR environment with the Postgres cluster, and do the same for
the PGbouncer configurations.

But all of this needs to be done on a local machine first.

Thanks

*Muhammad Affan (*아판*)*

*PostgreSQL Technical Support Engineer** / Pakistan R&D*

On Sat, Jul 27, 2024 at 1:34 PM Rajesh Kumar <rajeshkumar(dot)dba09(at)gmail(dot)com>
wrote:

> We are already using patroni. With the postgres operator, we have
> pgbouncer, pgbackrest and 2 nodes for postgres.
>
> If we want to perform the same as DR setup , how do I replicate pgbouncer,
> pgbackrest and postgres ?
>
> What configuration changes I have to make in pgbouncer, pgbackrest,
> patroni and postgres? Some hint or idea on this if not in detail?
>
> On Sat, 27 Jul 2024, 08:07 akshay polji, <akshay(dot)polji(at)gmail(dot)com> wrote:
>
>> Hello Rajesh,
>>
>> I believe this is an incomplete question. What help are you looking for ?
>>
>> Thanks & Regards,
>> Akshay Polji.
>>
>> On Fri, 26 Jul, 2024, 10:23 am Rajesh Kumar, <rajeshkumar(dot)dba09(at)gmail(dot)com>
>> wrote:
>>
>>> Hi All,
>>>
>>> We have one master and one replica(15.6) postgres in primary datacenter
>>> on platform openshift version 4.14.
>>>
>>> We are looking for DR set up , for postgres in another datacenter in
>>> RHOS running on Hyper converged infrastructure fusion.
>>>
>>> Kindly help me with som points
>>>
>>