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From: Adrian Klaver <[email protected]>
To: [email protected]
To: PostgreSQL General <[email protected]>
Subject: Re: Streaming replica hangs periodically for ~ 1 second - how to diagnose/debug
Date: Tue, 19 Aug 2025 11:39:03 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

On 8/19/25 10:21, hubert depesz lubaczewski wrote:
> Hi,
> we have following situation: Pg 14.17 (yes, I know, but it can't be
> upgraded now/soon), on Ubuntu focal, in AWS cloud on EC2 server using
> arm64 architecture.
> 
> All works, is fine.
> 
> Every now and then (usually every 3-5 minutes, but not through the whole
> day), we see situations where every query suddently takes ~ 1 second.
> 

Given the subject line, what you are reporting is happening on the 
replica, correct?

If so where is the replica relative to the primary, in terms of network 
distance?

Also what are the 'hardware' specifications on the replica instance?


-- 
Adrian Klaver
[email protected]

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