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 1k7tle-0004lV-HN for pgsql-committers@arkaria.postgresql.org; Tue, 18 Aug 2020 05:02:38 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1k7tld-00070H-CG for pgsql-committers@arkaria.postgresql.org; Tue, 18 Aug 2020 05:02:37 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1k7tlc-00070A-Ej for pgsql-committers@lists.postgresql.org; Tue, 18 Aug 2020 05:02:37 +0000 Received: from wout5-smtp.messagingengine.com ([64.147.123.21]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1k7tlV-0006nP-4s for pgsql-committers@lists.postgresql.org; Tue, 18 Aug 2020 05:02:36 +0000 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.west.internal (Postfix) with ESMTP id 0380E731; Tue, 18 Aug 2020 01:02:21 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Tue, 18 Aug 2020 01:02:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=anarazel.de; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm2; bh=x2iYnhMdMyHUom1JkHi+ID+Os3O KNneAUdRIlZQMaoM=; b=J1z3GoOc5l3MA+1cboYn7SPAxYd/8GbgG0ZANw+GKwf kSOUyqh3wxCFuNcZwTUEZo4tkmsJbd5sbXctgHAOs4c4L85hUD/DCjkQqDx4uBZ0 9VMiG4Dz35gWsrWfrw4RkpssVpkUtRVFkF3nll9xeoiVhd77qVj4f/GQWDXUon9s m7//DdvAyPSqP6beoFEjdGoZHZ+uCfxXOgF7iCXrPvjANod5ePmWqQTwY9ugfIXd BJPF9tzQSm0wJ+mLBBEGF6TPqiG/q7OeOTvWB96Stff9Fi1gOZOegIFkKcfZR3Oa 7m0+kI//BKTiYGBpQjV4aovozmpYYQGyExSmB3nolDA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc: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=fm3; bh=x2iYnh MdMyHUom1JkHi+ID+Os3OKNneAUdRIlZQMaoM=; b=nvXGrfBfMekfWMpM0A10pG oxcdjwvNnz+kWo14aFZOp9xOufJz+P2mKSmF2uGbWTpjceGTqPhAbdgueNc8de6h URZVLjevf30zfrpVYuFaRjSC1e9yGVLT6/x5VeYPTXWYShqPd3xlBS16JWOX7pNu qqEgnQAN7nNKa5JPEbKPXyDUXIoD1EapT7IwjdNSR2ZiduQPFORcvN+Ers3ilMtB Q3nLk9MfwLrEuGzNORDczbL1jl6s4xHIEE+T/IZclJlsPkT+yl7EBoY90CyaR14r KU56yHntsSqA/jbXKrvhx3P8VpJQMUmX4VDKHNh79krqn797YJOLw4lNihE0/6Rg == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduiedruddthedgkeejucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpeffhffvuffkfhggtggujgesthdtre dttddtvdenucfhrhhomheptehnughrvghsucfhrhgvuhhnugcuoegrnhgurhgvshesrghn rghrrgiivghlrdguvgeqnecuggftrfgrthhtvghrnhepudekhfekleeugeevteehleffff ejgeelueduleeffeeutdelffeujeffhfeuffdunecukfhppeeijedrudeitddrvddujedr vdehtdenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpe grnhgurhgvshesrghnrghrrgiivghlrdguvg X-ME-Proxy: Received: from intern.anarazel.de (c-67-160-217-250.hsd1.ca.comcast.net [67.160.217.250]) by mail.messagingengine.com (Postfix) with ESMTPA id A8594328005A; Tue, 18 Aug 2020 01:02:20 -0400 (EDT) Date: Mon, 17 Aug 2020 22:02:19 -0700 From: Andres Freund To: Tom Lane Cc: pgsql-committers@lists.postgresql.org Subject: Re: pgsql: snapshot scalability: cache snapshots using a xact completion co Message-ID: <20200818050219.yzwnm5lwjc6cbd5y@alap3.anarazel.de> References: <1174008.1597726522@sss.pgh.pa.us> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1174008.1597726522@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk Hi, On 2020-08-18 00:55:22 -0400, Tom Lane wrote: > Andres Freund writes: > > snapshot scalability: cache snapshots using a xact completion counter. > > buildfarm doesn't like this a bit ... Yea, looking already. Unless that turns out to be incredibly bad luck and only the first three animals failed (there's a few passes after), or unless I find the issue in the next 30min or so, I'll revert. Greetings, Andres Freund