From: | Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at> |
---|---|
To: | Peter Röthlisberger <peter(dot)roethlisberger(at)zen-innovations(dot)com>, pgsql-general(at)lists(dot)postgresql(dot)org |
Subject: | Re: undefined symbol: PQcancelStart |
Date: | 2025-06-20 12:00:17 |
Message-ID: | dd6d33d8a7c19a8adb1c861520a97edc2e3c2b9c.camel@cybertec.at |
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On Fri, 2025-06-20 at 13:49 +0200, Peter Röthlisberger wrote:
> Hello all,
>
> Platform: Rocky Linux release 9.4 (Blue Onyx)
>
> I try to migrate from version 16.7 to 17.5. When executing pg_upgrade —check I get the following:
>
>
> could not load library "$libdir/dblink": ERROR: could not load library "/opt/postgresql-17.5/lib/dblink.so": /opt/postgresql-17.5/lib/dblink.so: undefined symbol: PQcancelStart
> In database: zen_dev1
> In database: zen_prod2
> could not load library "$libdir/postgres_fdw": ERROR: could not load library "/opt/postgresql-17.5/lib/postgres_fdw.so": /opt/postgresql-17.5/lib/postgres_fdw.so: undefined symbol: PQcancelStart
> In database: zen_dev1
>
> I tried hard to find a hint on the net. No success hence my first post here. I was able to execute the update on another server having the same OS.
How did you install "dblink.so" and "postgres_fdw.so"?
It looks like you copied them from the old installation. That won't work.
Yours,
Laurenz Albe
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