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From: Adrian Klaver <[email protected]>
To: Daniel McKenzie <[email protected]>
To: [email protected]
Subject: Re: Unexpected data when subscribing to logical replication slot
Date: Wed, 8 May 2024 08:17:29 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <CACKLY6hwMnSjjipZ57TTz_FC9aWBkg7OpNLJ1tu+GvfEFc4hJA@mail.gmail.com>
References: <CACKLY6hwMnSjjipZ57TTz_FC9aWBkg7OpNLJ1tu+GvfEFc4hJA@mail.gmail.com>


> 
> We have found two things that appear to resolve the problem -
> 
>   * Using a more powerful EC2 instance. We can reproduce the issue with
>     a r7a.medium instance but not with a r7a.large EC2 instance.
>   * Changing the Postgres synchronous_commit parameter from "on" to
>     "off". We cannot reproduce the issue with synchronous_commit set to
>     "off".

What is running on the EC2 instance?:

1) The Postgres server.

2) The replication receiver.

3) Both.


> 
> We need help to understand this unexpected behaviour.
> 
> We are using Postgres 14.10.
> 
> Thanks,
> Daniel McKenzie

-- 
Adrian Klaver
[email protected]

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