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From: lejeczek <peljasz@yahoo.co.uk>
To: Pgsql-admin <pgsql-admin@lists.postgresql.org>
Subject: highest timeline xxx of the primary is behind recovery timeline - backup of the underlying filesystem
Date: Tue, 19 Dec 2023 08:59:25 +0100
Message-ID: <5fd4f533-a8f8-41d6-a79a-2bcd14c5a273@yahoo.co.uk> (raw)
References: <5fd4f533-a8f8-41d6-a79a-2bcd14c5a273.ref@yahoo.co.uk>

Hi guys.

I see these every now and again:

2023-12-19 08:43:17.311 CET [2494773] FATAL:  highest 
timeline 105 of the primary is behind recovery timeline 106

and the only thing I can think is a backup which in my case 
it a done with _libvirt_ as pgSQL cluster runs on Ubuntu VMs.
I'm not sure what exactly _virsh backup-begin_ does to the 
qcow2 and as a consequence, to the the FS in the VMs, but..
it would be good to have those backups.

Any thoughts & ideas shared are much appreciated.
I guess my first question would be -- if such VM backup 
might affect negatively pgSQL then, are there some tweaks, 
ways to harden pgSQL cluster internally for such scenarios?

many thanks, L.

Message-ID: <5fd4f533-a8f8-41d6-a79a-2bcd14c5a273@yahoo.co.uk>
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Also on:    postgresql.org/message-id/5fd4f533-a8f8-41d6-a79a-2bcd14c5a273@yahoo.co.uk

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