Hi,

I had no special logging activated.

Today I re-enabled exclusive-lock object-map and fast-diff on an image in 9.2.1

As soon as I ran an rbd export-diff I had lots of these error messages on the 
console of the rbd export process:

2016-03-18 11:18:21.546658 7f77245d1700  1 heartbeat_map is_healthy 
'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60
2016-03-18 11:18:26.546750 7f77245d1700  1 heartbeat_map is_healthy 
'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60
2016-03-18 11:18:31.546840 7f77245d1700  1 heartbeat_map is_healthy 
'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60
2016-03-18 11:18:36.546928 7f77245d1700  1 heartbeat_map is_healthy 
'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60
2016-03-18 11:18:41.547017 7f77245d1700  1 heartbeat_map is_healthy 
'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60
2016-03-18 11:18:46.547105 7f77245d1700  1 heartbeat_map is_healthy 
'librbd::thread_pool thread 0x7f77137fe700' had timed out after 60


Is this a known issue ? 





On Tue, Mar 08, 2016 at 11:22:17AM -0500, Jason Dillaman wrote:
> Is there anyway for you to provide debug logs (i.e. debug rbd = 20) from your 
> rbd CLI and qemu process when you attempt to create a snapshot?  In v9.2.0, 
> there was an issue [1] where the cache flush writeback from the snap create 
> request was being blocked when the exclusive lock feature was enabled, but 
> that should have been fixed in v9.2.1.
> 
> [1] http://tracker.ceph.com/issues/14542
> 
> -- 
> 
> Jason Dillaman 
> 
> 
> ----- Original Message -----
> > From: "Christoph Adomeit" <[email protected]>
> > To: [email protected]
> > Sent: Tuesday, March 8, 2016 11:13:04 AM
> > Subject: [ceph-users] Does object map feature lock snapshots ?
> > 
> > Hi,
> > 
> > i have installed ceph 9.21 on proxmox with kernel 4.2.8-1-pve.
> > 
> > Afterwards I have enabled the features:
> > 
> > rbd feature enable $IMG exclusive-lock
> > rbd feature enable $IMG object-map
> > rbd feature enable $IMG fast-diff
> > 
> > 
> > During the night I have a cronjob which does a rbd snap create on each
> > of my images and then an rbd export-diff
> > 
> > I found out that my cronjob was hanging during the rbd snap create and
> > does not create the snapshot.
> > 
> > Also more worse, sometimes also the vms were hanging.
> > 
> > What are your experiences with object maps ? For me it looks that they
> > are not yet production ready.
> > 
> > Thanks
> >   Christoph
> > _______________________________________________
> > ceph-users mailing list
> > [email protected]
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> > 

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