Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m4mge-0006GL-4u for pgsql-hackers@arkaria.postgresql.org; Sat, 17 Jul 2021 15:57:08 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1m4mgd-0003ZW-01 for pgsql-hackers@arkaria.postgresql.org; Sat, 17 Jul 2021 15:57:07 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m4mgc-0003ZO-OM for pgsql-hackers@lists.postgresql.org; Sat, 17 Jul 2021 15:57:06 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m4mga-0006qV-M9 for pgsql-hackers@lists.postgresql.org; Sat, 17 Jul 2021 15:57:05 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 16HFv0Om070160; Sat, 17 Jul 2021 11:57:00 -0400 From: Tom Lane To: Justin Pryzby cc: Alvaro Herrera , Bharath Rupireddy , pgsql-hackers@lists.postgresql.org Subject: Re: What are exactly bootstrap processes, auxiliary processes, standalone backends, normal backends(user sessions)? In-reply-to: <20210717145856.GB19498@telsasoft.com> References: <202107171445.v4okkq2xyytm@alvherre.pgsql> <20210717145856.GB19498@telsasoft.com> Comments: In-reply-to Justin Pryzby message dated "Sat, 17 Jul 2021 09:58:57 -0500" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <70158.1626537420.1@sss.pgh.pa.us> Content-Transfer-Encoding: quoted-printable Date: Sat, 17 Jul 2021 11:57:00 -0400 Message-ID: <70159.1626537420@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Justin Pryzby writes: > On Sat, Jul 17, 2021 at 10:45:52AM -0400, Alvaro Herrera wrote: >> Process of an instance in >> charge of some specific, hardcoded background task. Examples are > And I think "hardcoded" doesn't mean anything beyond what "specific" mea= ns. > Maybe you'd say: .. process which handles a specific, central task for t= he > cluster instance. Meh. "Specific" and "background" both seem to be useful terms here. I do not think "central" is a useful adjective. regards, tom lane