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From: Adrian Klaver <[email protected]>
To: Bharani SV-forum <[email protected]>
To: Greg Sabino Mullane <[email protected]>
To: [email protected] <[email protected]>
Cc: pgsql-general <[email protected]>
Subject: Re: Help in vetting error using "pg_upgrade" - steps for Postgres DB upgrade from Ver 13.X to ver 15.X
Date: Fri, 24 Jan 2025 08:22:18 -0800
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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On 1/24/25 07:50, Bharani SV-forum wrote:
> Team
> Need your additional input.
> VM is based on EC2 OS Version = Amazon Linux 2
> Existing DB version = 13.X - Pg Community under EC2 - VM (Same VM)
> Target DB version = 15.x  - Pg Community under EC2 - VM (Same VM)
> 
> i will narrate the latest error
> 
> 
> 
> executing: SELECT pg_catalog.set_config('search_path', '', false);
> Checking for presence of required libraries                 fatal
> 

> 
> Any guidance how to come the error.
> 
> my unix system admin is quoting that  he is facing built issue with 
> postgres15 version w.r.to " postgresql15-contrib.x86_64 "
> under AWS based OS " Amazon Linux 2  ".
> His version is "It needs libpython3.6m.so.1.0()(64bit) to install 
> package: postgresql15-contrib-15.10-1PGDG.rhel7.x86_64. in our 
> environment. I can't install python3.6 libraries because we already have 
> a different python version installed and clashing"

 From what I know Amazon Linux 2 is a RH clone, confirmed by 
postgresql15-contrib-15.10-1PGDG.rhel7.x86_64 above.

 From link below it seems it is possible to run multiple versions of 
Python together RH7 so it should work on AL2 also(?):

https://developers.redhat.com/blog/install-python3-rhel#installing_python_3_on_rhel_7

> 
> Any quidance to overcome the error, as the existing python version being 
> used by us is clashing with the pre.req version python ver 3.6
> 
> My unix admin, too quoted me to have it installed under OS RHEL7 w.r.to 
> postgresql - EC2 version
> Best Viable option. I have tried with previous suggestion steps and 
> found "pg_upgrade" as the most viable and faster
> 
> Regards


-- 
Adrian Klaver
[email protected]

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