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From: Dirk Krautschick <[email protected]>
To: [email protected]
Subject: performance impact on read replicas during heavy vacuums on primary
Date: Tue, 3 Feb 2026 02:02:52 +0100
Message-ID: <[email protected]> (raw)

Is there a scenario, where a very heavy vacuum on the primary side is 
affecting significantly
the read replica(s) in matter of performance (not the overall apply lag, 
which is expected) of
selects? I do not get this reproduced ...only the lag is clear but even 
hammering down the
primary with vaccum keeps my standby answering fine.

Cheers


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