Libpq library error when doing physical Replication

Hi Danish,

I Have installed postgresql 16.4 &16.3 on HP UX B.11.31 U ia64. Installation is successful but when i am doing physical replication i m getting Libpq error and sync not starting, unable to connect to primary server. Kindly check the screenshot below

HP UX support was dropped in PG16 according to the release notes [1]https://www.postgresql.org/docs/release/16.0/:

Remove support for HP-UX (Thomas Munro)

I'm afraid you will have to ask for help somebody who provided this
build for you.

[1]: https://www.postgresql.org/docs/release/16.0/

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Best regards,
Aleksander Alekseev

Hi Aleksander

I have tried on version 12 of PostgreSQL getting same error

Regards
Danish

On Thu, 14 Nov 2024 at 7:22 PM, Aleksander Alekseev <
aleksander@timescale.com> wrote:

Hi Danish,

I have tried on version 12 of PostgreSQL getting same error

As of today PG12 is end-of-life and will no longer receive bug fixes [1]https://www.postgresql.org/about/news/postgresql-171-165-159-1414-1317-and-1221-released-2955/.

Does the issue reproduce with PG13, 14 or 15?

[1]: https://www.postgresql.org/about/news/postgresql-171-165-159-1414-1317-and-1221-released-2955/

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Best regards,
Aleksander Alekseev

Hi Aleksander

Tried on PostgreSQL 15 also same error

Regards
Danish

On Thu, 14 Nov 2024 at 11:39 PM, Aleksander Alekseev <
aleksander@timescale.com> wrote:

Hi Danish,

Tried on PostgreSQL 15 also same error

We are going to need more information than this since most of us don't
have access to HP-UX (I certainly don't). The exact steps to reproduce
the issue in a clean HP-UX environment (commands you execute in bash)
and the exact PostgreSQL & libpq versions would be a good starting
point.

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Best regards,
Aleksander Alekseev