Hello,

I hit an issue with latest Luminous when a Watcher is not timing out when the 
image is not mapped. It seems something similar was reported in 2016, here is 
the link:
http://lists.ceph.com/pipermail/ceph-users-ceph.com/2016-August/012140.html
Has it been fixed? Appreciate some help here.
Thank you
Serguei

date; sudo rbd status raw-volume --pool kubernetes
Wed Dec 20 10:04:19 EST 2017
Watchers:
        watcher=192.168.80.235:0/3789045165 client.64439 cookie=1
date; sudo rbd status raw-volume --pool kubernetes
Wed Dec 20 10:04:51 EST 2017
Watchers:
        watcher=192.168.80.235:0/3789045165 client.64439 cookie=1
date; sudo rbd status raw-volume --pool kubernetes
Wed Dec 20 10:05:14 EST 2017
Watchers:
        watcher=192.168.80.235:0/3789045165 client.64439 cookie=1

date; sudo rbd status raw-volume --pool kubernetes
Wed Dec 20 10:07:24 EST 2017
Watchers:
        watcher=192.168.80.235:0/3789045165 client.64439 cookie=1 

sudo ls /dev/rbd*
ls: cannot access '/dev/rbd*': No such file or directory

sudo rbd info raw-volume --pool kubernetes
rbd image 'raw-volume':
        size 10240 MB in 2560 objects
        order 22 (4096 kB objects)
        block_name_prefix: rb.0.fafa.625558ec
        format: 1



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