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From: Greg Sabino Mullane <[email protected]>
To: Subramanian,Ramachandran <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: 5 Instances in one box -- Postgresql.conf Archive Log command
Date: Mon, 9 Feb 2026 12:44:02 -0500
Message-ID: <CAKAnmm+AiZ9Nt7D6LmFnf1+bn33+igSc-xFcj2ZPiHoAt1EdeA@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

You cannot do that natively with Postgres. However, one solution would be
to make the archive_command into a separate file, that the main
postgresql.conf includes. Then you can keep copying the postgresql.conf but
keep the archive_command separate and unique. The syntax is

include = 'myserver.conf'

And then the myserver.conf would contain things specific to each server,
e.g.

archive_command = 'test ! -f /archives/INST3/%f && cp %p /archives/INST3/%f'
cluster_name = 'inst3'


Cheers,
Greg

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