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From: Colin 't Hart <[email protected]>
To: PostgreSQL General <[email protected]>
Subject: wdavdaemon / Microsoft Defender for Endpoint on Linux and slow Postgres recovery?
Date: Tue, 2 Dec 2025 15:47:48 +0100
Message-ID: <CAMon-aQz20Mv12T1RNL1T0eaWg-=nqu0WZuwVsh587rKbdf8aA@mail.gmail.com> (raw)

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...

Thanks,

Colin

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