> -----Original Message----- > From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of > Jason Dillaman > Sent: 27 January 2016 14:25 > To: Nick Fisk <nick@xxxxxxxxxx> > Cc: ceph-users@xxxxxxxxxxxxxx > Subject: Re: Possible Cache Tier Bug - Can someone confirm > > Are you running with an EC pool behind the cache tier? I know there was an > issue with the first Infernalis release where unsupported ops were being > proxied down to the EC pool, resulting in that same error. Hi Jason, yes I am. 3x Replicated pool on top of an EC pool. It's probably something similar to what you mention. Either the client should be able to access the RBD header object on the base pool, or it should be flagged so that it can't be evicted. > > -- > > Jason Dillaman > > > ----- Original Message ----- > > From: "Nick Fisk" <nick@xxxxxxxxxx> > > To: ceph-users@xxxxxxxxxxxxxx > > Sent: Wednesday, January 27, 2016 8:46:53 AM > > Subject: Possible Cache Tier Bug - Can someone confirm > > > > Hi All, > > > > I think I have stumbled on a bug. I'm running Infernalis (Kernel 4.4 > > on the > > client) and it seems that if the RBD header object gets evicted from > > the cache pool then you can no longer map it. > > > > Steps to reproduce > > > > rbd -p cache1 create Test --size=10G > > rbd - p cache1 map Test > > > > /dev/rbd1 <-Works!! > > > > rbd unmap /dev/rbd1 > > > > rados -p cache1 cache-flush rbd_id.Test rados -p cache1 cache-evict > > rbd_id.Test rbd - p cache1 map Test > > > > rbd: sysfs write failed > > rbd: map failed: (95) Operation not supported > > > > or with the rbd-nbd client > > > > 2016-01-27 13:39:52.686770 7f9e54162b00 -1 asok(0x561837b88360) > > AdminSocketConfigObs::init: failed: AdminSocket::bind_and_listen: > > failed to bind the UNIX domain socket to > > '/var/run/ceph/ceph-client.admin.asok': (17) File exists > > 2016-01-27 13:39:52.703987 7f9e32ffd700 -1 librbd::image::OpenRequest: > > failed to retrieve image id: (95) Operation not supported > > rbd-nbd: failed to map, status: (95) Operation not supported > > 2016-01-27 13:39:52.704138 7f9e327fc700 -1 librbd::ImageState: failed > > to open image: (95) Operation not supported > > > > Nick > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@xxxxxxxxxxxxxx > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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