From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josh Durgin Subject: Re: upstream/firefly exporting the same snap 2 times results in different exports Date: Tue, 21 Jul 2015 12:46:02 -0700 Message-ID: <55AEA17A.8040901@redhat.com> References: <55AE3B3A.2040902@profihost.ag> <1431119614.1353345.1437489164103.JavaMail.zimbra@redhat.com> <55AE798F.1010206@profihost.ag> <1828157940.1473499.1437499191528.JavaMail.zimbra@redhat.com> <55AE9BD9.6010801@profihost.ag> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.redhat.com ([209.132.183.28]:36849 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751807AbbGUTp5 (ORCPT ); Tue, 21 Jul 2015 15:45:57 -0400 In-Reply-To: <55AE9BD9.6010801@profihost.ag> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Stefan Priebe , Jason Dillaman Cc: ceph-devel@vger.kernel.org On 07/21/2015 12:22 PM, Stefan Priebe wrote: > > Am 21.07.2015 um 19:19 schrieb Jason Dillaman: >> Does this still occur if you export the images to the console (i.e. >> "rbd export cephstor/disk-116@snap - > dump_file")? >> >> Would it be possible for you to provide logs from the two "rbd export" >> runs on your smallest VM image? If so, please add the following to >> the "[client]" section of your ceph.conf: >> >> log file = /valid/path/to/logs/$name.$pid.log >> debug rbd = 20 >> >> I opened a ticket [1] where you can attach the logs (if they aren't >> too large). >> >> [1] http://tracker.ceph.com/issues/12422 > > Will post some more details to the tracker in a few hours. It seems it > is related to using discard inside guest but not on the FS the osd is on. That sounds very odd. Could you verify via 'rados listwatchers' on an in-use rbd image's header object that there's still a watch established? Have you increased pgs in all those clusters recently? Josh