From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olivier Bonvalet Subject: Re: Issue #5876 : assertion failure in rbd_img_obj_callback() Date: Tue, 25 Mar 2014 22:03:31 +0100 Message-ID: <1395781411.2076.19.camel@localhost> References: <1395736765.2823.29.camel@localhost> <53316D18.7040103@ieee.org> <53317BC2.9010700@ieee.org> <1395753516.2823.37.camel@localhost> <533184AF.9050101@ieee.org> <5331853D.40408@ieee.org> <1395767705.9967.5.camel@localhost> <5331C05D.1060008@ieee.org> <1395773582.2076.10.camel@localhost> <5331D2E8.6060002@ieee.org> <1395778894.2076.12.camel@localhost> <5331E608.40206@ieee.org> <1395779358.2076.14.camel@localhost> <5331EA9C.90004@ieee.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from licorne.daevel.fr ([178.32.94.222]:41941 "EHLO licorne.daevel.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754500AbaCYVDd (ORCPT ); Tue, 25 Mar 2014 17:03:33 -0400 In-Reply-To: <5331EA9C.90004@ieee.org> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Alex Elder Cc: Ilya Dryomov , Ceph Development =46or me all this images are RBD v1 images, without layering. # rbd info sas3copies/env4-spool rbd image 'env4-spool': size 10240 MB in 2560 objects order 22 (4096 KB objects) block_name_prefix: rb.0.1536881.238e1f29 format: 1 (the one reported here :=20 Mar 25 21:17:58 murmillia kernel: [ 2205.255938] obj_request ffff88025a= 2b3c48 Mar 25 21:17:58 murmillia kernel: [ 2205.255940] ->object_name Mar 25 21:17:58 murmillia kernel: [ 2205.255941] ->offset 0 Mar 25 21:17:58 murmillia kernel: [ 2205.255943] ->length 28672 Mar 25 21:17:58 murmillia kernel: [ 2205.255944] ->type 0x1 Mar 25 21:17:58 murmillia kernel: [ 2205.255945] ->flags 0x3 Mar 25 21:17:58 murmillia kernel: [ 2205.255946] ->which 1 Mar 25 21:17:58 murmillia kernel: [ 2205.255948] ->xferred 28672 Mar 25 21:17:58 murmillia kernel: [ 2205.255949] ->result 0 ) At VM level, this block device is formated in ext4, and used for Exim4 (MTA) spool, and can handle a lots of writes. And this ceph pool use 3 replica, with a "per network" CRUSH rule. Le mardi 25 mars 2014 =C3=A0 15:44 -0500, Alex Elder a =C3=A9crit : > Olivier, it appears this is a layered image, i.e., the image > is a clone of another. Can you tell us any more about the > way these images are organized? Do you have one master image > and others are based on that? Is there more than one layer to > the organization? (Do these questions make sense?) >=20 > -Alex > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel"= in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >=20 -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html