Re: could not open file "global/pg_filenode.map": Operation not permitted

On Mon, 2024-03-11 at 11:11 +0100, Nick Renders wrote:
> We have several other machines with a similar setup, but this is the only server that has this issue.
>
> [...] Cluster A is actually a backup from another Postgres server that is restored on a
> daily basis via Barman. This means that we login remotely from the Barman server over SSH,
> stop cluster A's service (port 165), clear the Data folder, restore the latest back into
> the Data folder, and start up the service again.
> Cluster B's Data and service (port 164) remain untouched during all this time. This is
> the cluster that experiences the intermittent "operation not permitted" issue.
>
> Over the past 2 weeks, I have suspended our restore script and the issue did not occur.
> I have just performed another restore on cluster A and now cluster B is throwing errors in the log again.
>
> Any idea why this is happening? It does not occur with every restore, but it seems to be related anyway.

I don't know Barman, but with that incomplete description anybody will have
problems determining the cause. For example, how are A and B connected?

Yours,
Laurenz Albe