From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stratos Psomadakis Subject: Re: Random blocks when accessing rbd images Date: Thu, 15 Dec 2011 17:32:25 +0200 Message-ID: <4EEA1309.9030602@grnet.gr> References: <1404301.on6okQVZ04@pc10> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigAA38D013F3277E8379BCA829" Return-path: Received: from averel.grnet-hq.admin.grnet.gr ([195.251.29.3]:39821 "EHLO averel.grnet-hq.admin.grnet.gr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751570Ab1LOPci (ORCPT ); Thu, 15 Dec 2011 10:32:38 -0500 In-Reply-To: <1404301.on6okQVZ04@pc10> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Guido Winkelmann Cc: ceph-devel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigAA38D013F3277E8379BCA829 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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 o= n the=20 > same machine, for now), that I want to use as a block- and file storage= backend=20 > for qemu machine virtualisation. > > I found that read access to some of the rbd images, or parts of some of= them=20 > sometimes blocks indefinitely, usually after the image has been sitting= around=20 > untouched for a while, for example over night. This has the effect that= virtual=20 > machines that try to access their disks as well as rbd commands like "r= bd cp"=20 > will just hang indefinitely. > > I found that these blocks can usually be "fixed" by restarting one of = the=20 > osds. > > The last time this happened, ceph -s reported one of the osds to be in = state=20 > "active+clean+scrubbing". (I'm afraid I don't have the complete output = from=20 > ceph -s anymore.) > > Does anybody have any idea what could be going wrong here? I think it's fixed in v0.39 > Guido > -- > 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 --=20 Stratos Psomadakis --------------enigAA38D013F3277E8379BCA829 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk7qEw8ACgkQid1lVeNDMmDctgCfa19ducY71oB2ont6IB8vaYUP aVcAoK/yEkT2fAVJJP9i1NmosInwaPC8 =fDTK -----END PGP SIGNATURE----- --------------enigAA38D013F3277E8379BCA829--