From: | Matti Linnanvuori <mattilinnanvuori(at)protonmail(dot)com> |
---|---|
To: | PGSQL DBA <pgsqldba(dot)1987(at)gmail(dot)com> |
Cc: | pgsql-admin(at)lists(dot)postgresql(dot)org |
Subject: | Re: How to Handle Sequences in Logical Bi-Directional Replication |
Date: | 2024-06-13 04:13:32 |
Message-ID: | dWinawC5H9OjpntKSBy03rDhPpQM1vFxgGL6ctKxfu-jhZZ9rbH5F1-1u9wlnxY1ZiMArv7uMP2Jze3Tcs_UdJsObMujo2-Imgeb5qXhsWQ=@protonmail.com |
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Lists: | pgsql-admin |
Hi!
I have planned replacing sequences with UUIDs, which work in distributed networks.
On Thursday, June 13th, 2024 at 04.23, PGSQL DBA <pgsqldba(dot)1987(at)gmail(dot)com> wrote:
> Hi Experts,
>
> I am reaching out to seek your guidance and expertise on handling sequences in a bi-directional logical replication setup.
>
> I am planning to set up two PostgreSQL-16 database servers with logical bi-directional replication, using the `origin=none` configuration. In this setup, my application will be connecting to either of the database servers for DML operations.
>
> Given this scenario, I am looking for the best practices to handle sequence values to ensure consistency and avoid conflicts. Specifically, I would like to understand:
>
> 1. How to configure sequences to avoid duplicate values in both database servers.
> 2. Whether there are specific settings or configurations in PostgreSQL that facilitate the management of sequences in a bi-directional replication environment.
> 3. Any recommendations or strategies to ensure smooth and consistent sequence management across the two servers.
>
> I appreciate any guidance you can provide on this matter.
>
> Thank you!
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