Re: BUG #18635: " $libdir/adminpack could not be loaded" error with pg_upgrade to PostgreSQL17 - Mailing list pgsql-bugs

From Euler Taveira
Subject Re: BUG #18635: " $libdir/adminpack could not be loaded" error with pg_upgrade to PostgreSQL17
Date
Msg-id b8d6cc91-fe12-4786-ae39-06d80d8110d5@app.fastmail.com
Whole thread Raw
In response to RE: BUG #18635: " $libdir/adminpack could not be loaded" error with pg_upgrade to PostgreSQL17  (Bing Xu <bing.xu.uh@fujifilm.com>)
List pgsql-bugs
On Wed, Oct 9, 2024, at 6:17 AM, Bing Xu wrote:

I uninstalled adminpack from the database and was able to upgrade to PostgreSQL 17 normally,

but why is there no record in the PostgreSQL 17 upgrade manual?



... because this list can be large along the years. That's why pg_upgrade adopts
loadable_libraries.txt file that reports the loadable module failures. You
should run pg_upgrade with --check option and if there is an error, check the
referred file.

8<----------------------------------------------------------------------------8<
$ /h/pg17/bin/pg_upgrade -b /h/pg16/bin -B /h/pg17/bin -d /tmp/foo16 -D /tmp/foo17 --check
Performing Consistency Checks
-----------------------------
Checking cluster versions                                     ok
Checking database user is the install user                    ok
Checking database connection settings                         ok
Checking for prepared transactions                            ok
Checking for contrib/isn with bigint-passing mismatch         ok
Checking data type usage                                      ok
Checking for presence of required libraries                   fatal

Your installation references loadable libraries that are missing from the
new installation.  You can add these libraries to the new installation,
or remove the functions using them from the old installation.  A list of
problem libraries is in the file:
    /tmp/foo17/pg_upgrade_output.d/20241009T213155.590/loadable_libraries.txt
Failure, exiting

$ cat /tmp/foo17/pg_upgrade_output.d/20241009T213948.961/loadable_libraries.txt
could not load library "$libdir/adminpack": ERROR:  could not access file "$libdir/adminpack": No such file or directory
In database: postgres

8<----------------------------------------------------------------------------8<

It is highly recommended to read all release notes [1] from version X+1 to Y
where X is your current version and Y is your new version before upgrading.

In this particular case (adminpack), even though it belongs to Additional
Modules section, I would add it to Migration to Version 17 because it is an
incompatibility with the previous releases. Well, this ship has already sailed
and it is documented (lines below).




--
Euler Taveira

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