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Message-ID: <085ea19f-8e97-4750-9916-104b2a0cabcc@aklaver.com>
Date: Tue, 2 Dec 2025 08:17:09 -0800
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Subject: Re: wdavdaemon / Microsoft Defender for Endpoint on Linux and slow
 Postgres recovery?
To: Colin 't Hart <colinthart@gmail.com>,
 PostgreSQL General <pgsql-general@lists.postgresql.org>
References: <CAMon-aQz20Mv12T1RNL1T0eaWg-=nqu0WZuwVsh587rKbdf8aA@mail.gmail.com>
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From: Adrian Klaver <adrian.klaver@aklaver.com>
In-Reply-To: <CAMon-aQz20Mv12T1RNL1T0eaWg-=nqu0WZuwVsh587rKbdf8aA@mail.gmail.com>
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On 12/2/25 06:47, Colin 't Hart wrote:
> Hi,
> 
> One of my clients has Microsoft Defender for Endpoint on Linux installed 
> on their Postgres servers.
> 
> I was testing a database restore from pgBackRest. The restore itself 
> seemed to complete in a reasonable amount of time, but then the Postgres 
> recovery started and it was extremely slow to retrieve and apply the WAL 
> files.
> 
> I noticed wdavdaemon taking most of the CPU, and Postgres getting very 
> little.
> 
> I wonder if anyone here has any experience with configuring exclusions 
> so that the WAL files can be processed faster?
> 
> AND
> 
> Any advice on what to communicate with their IT department about using 
> this on their database servers? I've never encountered it on Linux before...

Advice, don't let any Microsoft product contact anything you care about.

> 
> Thanks,
> 
> Colin


-- 
Adrian Klaver
adrian.klaver@aklaver.com