From: Jakub Olczyk <jwo@disroot.org>
To: pgsql-admin@lists.postgresql.org
Subject: Re: benchmarking proposed config
Date: Fri, 21 Feb 2020 10:55:14 +0100
Message-ID: <20200221105514.084cb730@el-t490> (raw)
In-Reply-To: <1E6E0384-D13F-419E-ABC9-7BC52B001A68@killerbytes.com>
References: <1E6E0384-D13F-419E-ABC9-7BC52B001A68@killerbytes.com>
Hi Scott,
On Thu, 20 Feb 2020 09:12:09 -0700
Scott Ribe <scott_ribe@killerbytes.com> wrote:
> Does anyone have suggestions for a utility that would easily let us
> mirror all queries to a "shadow" PG cluster, so that we can compare
> performance of our current production config against a new proposed
> config with our actual production traffic?
I am not sure if this would be an acceptable solution for you but there
is an open source utility called pgreplay[1]. Here is the description:
> pgreplay reads a PostgreSQL log file (*not* a WAL file), extracts the
> SQL statements and executes them in the same order and relative time
> against a PostgreSQL database cluster.
This of course means that you'd need to have a fairly "chatty" log
configuration, but maybe it could work for your needs?
Cheers,
jwo
[1]: https://github.com/laurenz/pgreplay
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To: pgsql-admin@postgresql.org
Cc: jwo@disroot.org, pgsql-admin@lists.postgresql.org
Subject: Re: benchmarking proposed config
In-Reply-To: <20200221105514.084cb730@el-t490>
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