Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1avPla-00038q-RA for pgsql-hackers@arkaria.postgresql.org; Wed, 27 Apr 2016 13:44:34 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1avPla-00070c-8h for pgsql-hackers@arkaria.postgresql.org; Wed, 27 Apr 2016 13:44:34 +0000 Received: from makus.postgresql.org ([2001:4800:1501:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1avPlZ-00070M-Bh for pgsql-hackers@postgresql.org; Wed, 27 Apr 2016 13:44:33 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1avPlW-0001hn-F9 for pgsql-hackers@postgresql.org; Wed, 27 Apr 2016 13:44:32 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.4/8.14.4) with ESMTP id u3RDiQgP024749; Wed, 27 Apr 2016 09:44:26 -0400 From: Tom Lane To: Petr Jelinek cc: Magnus Hagander , Abhijit Menon-Sen , Craig Ringer , PostgreSQL-development Subject: Re: 9.6 and fsync=off In-reply-to: <57209AE7.9020906@2ndquadrant.com> References: <20160427104307.GA4861@toroid.org> <57209AE7.9020906@2ndquadrant.com> Comments: In-reply-to Petr Jelinek message dated "Wed, 27 Apr 2016 12:56:39 +0200" Date: Wed, 27 Apr 2016 09:44:26 -0400 Message-ID: <24748.1461764666@sss.pgh.pa.us> X-Pg-Spam-Score: -2.9 (--) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-hackers Precedence: bulk Sender: pgsql-hackers-owner@postgresql.org Petr Jelinek writes: > +1 (Abhijit's wording with data loss changed to data corruption) I'd suggest something like #fsync = on # flush data to disk for crash safety # (turning this off can cause # unrecoverable data corruption!) regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers