From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guido Winkelmann Subject: Re: Random blocks when accessing rbd images Date: Thu, 15 Dec 2011 16:45:56 +0100 Message-ID: <3807778.ycpoZxnZL4@pc10> References: <1404301.on6okQVZ04@pc10> <4EEA1309.9030602@grnet.gr> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: Received: from unknownsite.de ([62.48.69.106]:47158 "EHLO hartes-hannover.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751578Ab1LOPp7 (ORCPT ); Thu, 15 Dec 2011 10:45:59 -0500 Received: from pc10.localnet (pc10.asys-h.de [193.98.1.90]) by hartes-hannover.de (Postfix) with ESMTPSA id 8192010C866 for ; Thu, 15 Dec 2011 16:45:57 +0100 (CET) In-Reply-To: <4EEA1309.9030602@grnet.gr> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org Am Donnerstag, 15. Dezember 2011, 17:32:25 schrieben Sie: > On 12/15/2011 05:07 PM, Guido Winkelmann wrote: > > Hi, > > > > I've got a small ceph cluster with one mon, one mds and two osds (all on > > the same machine, for now), that I want to use as a block- and file > > storage backend for qemu machine virtualisation. > > > > I found that read access to some of the rbd images, or parts of some of > > them sometimes blocks indefinitely, usually after the image has been > > sitting around untouched for a while, for example over night. This has > > the effect that virtual machines that try to access their disks as well > > as rbd commands like "rbd cp" will just hang indefinitely. > > > > I found that these blocks can usually be "fixed" by restarting one of > > the> > > osds. > > > > The last time this happened, ceph -s reported one of the osds to be in > > state "active+clean+scrubbing". (I'm afraid I don't have the complete > > output from ceph -s anymore.) > > > > Does anybody have any idea what could be going wrong here? > > I think it's fixed in v0.39 I'm already using 0.39, so, no. (Should have mentioned that to start with...) Guido