From: | Guy Burgess <guy(at)burgess(dot)co(dot)nz> |
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To: | Lionel Bouton <lionel(dot)bouton(at)jtek(dot)fr> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: PostgreSQL occasionally unable to rename WAL files (NTFS) |
Date: | 2021-02-12 12:48:42 |
Message-ID: | 4ce6e79d-69d8-6992-f429-527d04730034@burgess.co.nz |
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Lists: | pgsql-general |
On 12/02/2021 12:31 am, Lionel Bouton wrote:
> I haven't dealt with a Windows environment for quite some time, but from
> what I remember an antivirus installs a driver intercepting file
> accesses and these drivers are still active even if you disable the
> antivirus (I suppose they just call a noop instead of content analysis
> code) and can still interfere with your system. For example some years
> ago I've seen what looked like a race condition involving rename for
> MySQL on Windows that could not be fixed by disabling the antivirus but
> could by uninstalling it completely.
>
> You might want to uninstall the antivirus temporarily to check this.
Thanks Lionel for this suggestion. Its the built-in Windows Defender AV
which I believe can't be uninstalled, so am limited to 'disabling' it
(plus it has exclusions for the PG directories & processes already).
Using Procmon I can't see any AV file activity when it is disabled. Will
keep monitoring it though.
Kind regards
Guy
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