Re: Assistance Needed: Issue with pg_upgrade and --link option

From: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
To: Pradeep Kumar <spradeepkumar29(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Assistance Needed: Issue with pg_upgrade and --link option
Date: 2023-06-28 06:24:45
Message-ID: 2f75270ef721372c1f7753506a7226a3bc7bce87.camel@cybertec.at
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On Wed, 2023-06-28 at 11:49 +0530, Pradeep Kumar wrote:
> I was under the impression that the --link option would create hard links between the
> old and new cluster's data files, but it appears that the entire old cluster data was
> copied to the new cluster, resulting in a significant increase in the new cluster's size.

Please provide some numbers, ideally

du -sk <old_data_directory> <new_data_directory>

Yours,
Laurenz Albe

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