Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gRZEx-0002Ta-2s for pgsql-hackers@arkaria.postgresql.org; Tue, 27 Nov 2018 09:01:07 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1gRZEv-0001AL-78 for pgsql-hackers@arkaria.postgresql.org; Tue, 27 Nov 2018 09:01:05 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gRZEu-0001AD-Sr for pgsql-hackers@lists.postgresql.org; Tue, 27 Nov 2018 09:01:05 +0000 Received: from out4-smtp.messagingengine.com ([66.111.4.28]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gRZEn-0007Tg-KU for pgsql-hackers@postgresql.org; Tue, 27 Nov 2018 09:01:03 +0000 Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailout.nyi.internal (Postfix) with ESMTP id 7963821B2A; Tue, 27 Nov 2018 04:00:56 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute7.internal (MEProxy); Tue, 27 Nov 2018 04:00:56 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; bh=NckGKJ5Pk4X4TB1qMNRikBtISpLRpggGUN4JRtDtZ So=; b=BupGN0DRq0V0KXm/s2NGfaPfP5ep17FRVBzWhqnyCPqReGumxuyYJoCi9 9LH2KbJAjHIV3+SFLS6AUV9dH+JnUj32jWqn304BOPQIN8R74afJF7tXf/DxDrpz chmMgHF/MvwvZkWRT9HPSowMnCFFa/hamVzJCTkg8kYki6tT/QWVyBjUfvkccFtU Fzwjx5a+JcIDVFaCP69JFCCTwzvIvPmhouxb7qJVshT9Ru2EKhdRsov6OGzzcvpI pYujjjxpt5vJW4h9QWoUrXUn2hLHFAizJcgcGOFkiCAcWvFFzxMwqPY44QrWFVYh kOw4miJsYZzXrRfCN9lxiyYEmkgow== X-ME-Sender: X-ME-Proxy: Received: from april.pezone.net (p5df34ab1.dip0.t-ipconnect.de [93.243.74.177]) by mail.messagingengine.com (Postfix) with ESMTPA id 9B999E4443; Tue, 27 Nov 2018 04:00:53 -0500 (EST) Subject: Re: Continue work on changes to recovery.conf API To: Andres Freund , Stephen Frost References: <22e02b05-cd56-6a6b-962d-6d35995827a5@2ndquadrant.com> <1876591538256580@iva1-5148b5385b62.qloud-c.yandex.net> <943181539360922@iva4-24c534b4e3ac.qloud-c.yandex.net> <32159921540906216@myt5-9da6df248f4a.qloud-c.yandex.net> <51a6446c-c2b6-b653-c9f5-da38e23ddd9d@2ndquadrant.com> <22367601542121030@iva5-d3020dc3459d.qloud-c.yandex.net> <2d1877b6-e8cf-a27c-4608-c40758dd0f6c@2ndquadrant.com> <20181121060012.GE1951@paquier.xyz> <20181125182415.GP3415@tamriel.snowman.net> <20181125203927.f66lvh55ef5aw65g@alap3.anarazel.de> Cc: Michael Paquier , Sergei Kornilov , PostgreSQL mailing lists From: Peter Eisentraut Openpgp: preference=signencrypt Autocrypt: addr=peter.eisentraut@2ndquadrant.com; 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Intel Mac OS X 10.13; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20181125203927.f66lvh55ef5aw65g@alap3.anarazel.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On 25/11/2018 21:39, Andres Freund wrote: > On 2018-11-25 13:24:15 -0500, Stephen Frost wrote: >> - User performs a backup with pg_basebackup -R >> - Replica is then promoted to be a primary >> - User performs a backup with pg_basebackup -R on the new primary >> - Duplicate entries end up in postgresql.auto.conf. Ew. > Why don't we put recovery entries into postgresql.recovery.conf or such? > And overwrite rather than append? Adding more such sub-configuration files would be easy to do and has some merit, but the devil is in the details. In what order would those files be read? Who is supposed to write to it, is it reserved for pg_basebackup use only? If you choose to use this particular name, is it not used when not in recovery? Does this file belong in the data directory or the configuration directory? Which choice will offend packagers the least? Etc. -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services