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 1mg7ca-0007JH-4N for pgsql-bugs@arkaria.postgresql.org; Thu, 28 Oct 2021 15:47:16 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1mg7cY-0007EG-Va for pgsql-bugs@arkaria.postgresql.org; Thu, 28 Oct 2021 15:47:14 +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 1mg7cY-0007E6-OA for pgsql-bugs@lists.postgresql.org; Thu, 28 Oct 2021 15:47:14 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mg7cW-00086F-E5 for pgsql-bugs@lists.postgresql.org; Thu, 28 Oct 2021 15:47:14 +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 19SFl1nG486057; Thu, 28 Oct 2021 11:47:02 -0400 From: Tom Lane To: Andrey Borodin cc: Noah Misch , PostgreSQL mailing lists , Michael Paquier , Peter Geoghegan , Andres Freund Subject: Re: conchuela timeouts since 2021-10-09 system upgrade In-reply-to: References: <20211019030212.GB3403374@rfd.leadboat.com> <20211024050028.GA3310519@rfd.leadboat.com> <64835CF9-D9AA-49BF-A685-01C23B1023C1@yandex-team.ru> <20211024161942.GB3945842@rfd.leadboat.com> <640FA6DC-A998-4499-B3B4-2773685B8C56@yandex-team.ru> <3792312.1635119599@sss.pgh.pa.us> <4170532.1635195582@sss.pgh.pa.us> <20211026015157.GA113335@rfd.leadboat.com> <52098.1635228234@sss.pgh.pa.us> <20211026134500.GA128912@rfd.leadboat.com> <139687.1635277318@sss.pgh.pa.us> Comments: In-reply-to Andrey Borodin message dated "Wed, 27 Oct 2021 14:08:51 +0300" MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-ID: <486055.1635436021.1@sss.pgh.pa.us> Content-Transfer-Encoding: quoted-printable Date: Thu, 28 Oct 2021 11:47:01 -0400 Message-ID: <486056.1635436021@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Andrey Borodin writes: >> 26 =D0=BE=D0=BA=D1=82. 2021 =D0=B3., =D0=B2 22:41, Tom Lane =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=D0=BB(=D0=B0): >> We can get around that though, by using pg_try_advisory_lock and not >> proceeding if it fails. The attached POC does this for the 002 test; >> it looks like the same thing could be done to 003. > That's a neat idea. PFA patch with copy of this changes to 003. Pushed. It'll be interesting to see if conchuela's behavior changes. regards, tom lane