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 1i8Fyp-00061s-Od for pgsql-hackers@arkaria.postgresql.org; Thu, 12 Sep 2019 03:41:11 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1i8Fxq-0002vx-2x for pgsql-hackers@arkaria.postgresql.org; Thu, 12 Sep 2019 03:40:10 +0000 Received: from magus.postgresql.org ([87.238.57.229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1i8Fxp-0002vn-Ou for pgsql-hackers@lists.postgresql.org; Thu, 12 Sep 2019 03:40:09 +0000 Received: from mail-pl1-x630.google.com ([2607:f8b0:4864:20::630]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1i8FDf-00084a-5q for pgsql-hackers@postgresql.org; Thu, 12 Sep 2019 02:52:29 +0000 Received: by mail-pl1-x630.google.com with SMTP id k1so11062041pls.11 for ; Wed, 11 Sep 2019 19:52:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:message-id:to:cc:subject:from:in-reply-to:references :user-agent:mime-version:content-transfer-encoding; bh=4Cpz/B8NUfBnDUMZUp6zUqU8Cnu/zRXrp+Ob4t8ejlg=; b=uWHCfCnPQ1qglEXuN7Z72yrgO35vrErwpP65HHCmU4OmUsFfIsw7TahkUpxJV/ESj8 tCo3IFutROIG4jPakERWPNv5WzG9lISVujhiKi4pvbsRg1y4eKjmJZhYoBT/few6QwLp VNReDAoLPgAJ6KNjirjPgT+79P/UwbVFEAJ8D3MP5TLwIen9Is1nucNDd1JN5p9Qhkji ibhxZvoo//fc5Oq29h53U/04BQCUk3RZlIw5OjUKOrBrtR3o0/pdmaIpwMHSGxnEmav6 9+p0zfazxD1+dJUXk2J4JrkeZNjMRCpv6M0QyuzAn2iedIWX1lQASgX865aBr/t4qKP6 eCzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:to:cc:subject:from:in-reply-to :references:user-agent:mime-version:content-transfer-encoding; bh=4Cpz/B8NUfBnDUMZUp6zUqU8Cnu/zRXrp+Ob4t8ejlg=; b=QncsRMQAeZNNefk5GYGk4NO1ESv7ZGk/UTkLWEI8nd0eeNaaNXqTka/FS9Eqv9Oyp1 2yt8eer/b/RwqmruIXGkU9Ca+l/X/SV/2GHuZ0krhBJ3tmhOxhm1IvhMlv1i/kpMmVWm GCU/zuyeK6yrUe+eFKeS6pp4w5zNjF1Fkf8O7SI6prlTJJ9MFSq7Eu/6BV+0UciHFxvz C+QeLi69MSQLj/Nt/da18gLK7JNBZna6X2/zyTLXnThjnxZv2jN6MD5lFcbpgK8tnEp3 EXXkapV/1DKNbaICkhZEQ5VrkvDfgnakSQqiCP04emwAOouZzTxuHW4dtRQdVMpm75SF 48jg== X-Gm-Message-State: APjAAAXRpPIPIj13Ql8J/2f7pkRuynb1v7wajjR/DJAwQ9SnEWMhYEbT Xi96gEmMjO26/gB6tUaZC9c= X-Google-Smtp-Source: APXvYqyPkT3g/Bp3H+64+zgEtAHM7R7XN7GhB6PGA5asVtmk/BhdrJnuaHGyaFikcdtK8dPQftgnNg== X-Received: by 2002:a17:902:9347:: with SMTP id g7mr41211827plp.0.1568256438218; Wed, 11 Sep 2019 19:47:18 -0700 (PDT) Received: from localhost (w204177.dynamic.ppp.asahi-net.or.jp. [121.1.204.177]) by smtp.gmail.com with ESMTPSA id i74sm33592849pfe.28.2019.09.11.19.47.15 (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 11 Sep 2019 19:47:17 -0700 (PDT) Date: Thu, 12 Sep 2019 11:47:09 +0900 (Tokyo Standard Time) Message-Id: <20190912.114709.68615568.horikyota.ntt@gmail.com> To: alvherre@2ndquadrant.com Cc: peter.eisentraut@2ndquadrant.com, pgsql-hackers@postgresql.org Subject: Re: base backup client as auxiliary backend process From: Kyotaro Horiguchi In-Reply-To: <20190911221524.GA16563@alvherre.pgsql> References: <62e860f2-ae4b-67a1-b65d-04c3d1bf6aff@2ndquadrant.com> <20190911221524.GA16563@alvherre.pgsql> User-Agent: Mew version 6.5 on Emacs 22.2 / Mule 5.0 =?iso-2022-jp?B?KBskQjpnGyhCKQ==?= / Meadow-3.01-dev (TSUBO-SUMIRE) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk Hello, thanks for pinging. At Wed, 11 Sep 2019 19:15:24 -0300, Alvaro Herrera wrote in <20190911221524.GA16563@alvherre.pgsql> > On 2019-Aug-30, Peter Eisentraut wrote: > > > Attached is an updated patch for this. I have changed the initdb option > > name per suggestion. The WAL receiver is now started concurrently with > > the base backup. There is progress reporting (ps display), fsyncing. > > Configuration files are not copied anymore. There is a simple test > > suite. Tablespace support is still missing, but it would be > > straightforward. > > This is an amazing feature. How come we don't have people cramming to > review this? I love it, too. As for me, the reason for hesitating review this is the patch is said to be experimental. That means 'the details don't matter, let's discuss it's design/outline.'. So I wanted to see what the past reviewers comment on the revised shape before I would stir up the discussion by maybe-pointless comment. (Then forgotten..) I'll re-look on this. regards. -- Kyotaro Horiguchi NTT Open Source Software Center