Ceph Storage, umount error

Tag: Ceph Storage Umount Error

Phenomenon: [Email protected]:~# Umount/mnt/ceph-zhangbo
Umount:/mnt/ceph-zhangbo: The device is busy.
(In some cases lsof (8) or fuser (1)) can be found
Useful information about processes that use the device

Workaround:

1, according to the above tips, we use Fuser to check the use of the situation

[Email protected]:~# fuser-m/mnt/ceph-zhangbo
/mnt/ceph-zhangbo:5789c

We found 5789 processes in use

2. Review the process

[email protected]:~# ps aux | grep 5789c
Root 6483 0.0 0.1 15964 2152 PTS/14 s+ 11:36 0:00 grep--color=auto 5789c

3. Kill the Process

[Email protected]:~# fuser-k/mnt/ceph-zhangbo/
/mnt/ceph-zhangbo:5789c
[1]+ has killed Vim/etc/ceph/rbdmap (working directory:/mnt/ceph-zhangbo)
(Current working directory: ~)

4, can now Umount
[Email protected]:~# Umount/mnt/ceph-zhangbo
[Email protected]:~#

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Ceph Storage, umount error