Hi,
I would check the trash to see if the image has been moved there. If
it is, try to restore it to check its watchers. If you're able to
restore it, try blacklisting the specific client session, so something
like this:
# check trash
rbd -p iscsi-images trash ls --all
# try restoring it
rbd -p iscsi-images trash ls --all
<some_ID> tegile-500tb
rbd trash restore -p iscsi-images <some_ID>
# check existing locks
rbd lock list iscsi-images/tegile-500tb
# could look like this:
tegile-500tb -p iscsi-images
There is 1 exclusive lock on this image.
Locker ID Address
client.1211875 auto 139643345791728 192.168.3.12:0/2259335316
# try blacklisting the client
ceph osd blacklist add client.1211875
# check the locks again
# try deleting the image again
If the image is not in the trash, does a lock list return anything? Do
you know the block_name_prefix of that image to check if there are
remainders of that imge in the pool? This would look like this:
rados -p iscsi-images ls | grep <block_name_prefix>
If there are rados objects belonging to the image but no header, you
could try restoring the rbd_header object but let's not jump too far
ahead. Check the other things first.
Regards,
Eugen
Zitat von Mohammad Alam <samdto987@xxxxxxxxx>:
Hello All,
Greetings. We've a Ceph Cluster with the version
*ceph version 14.2.16-402-g7d47dbaf4d
(7d47dbaf4d0960a2e910628360ae36def84ed913) nautilus (stable)
=========================================
Issues: Can't able to delete rbd images
We have deleted target from the dashboard and now trying to delete
rbd images from cli but not able to delete.
when we ran "rbd rm -f tegile-500tb -p iscsi-images" its returning
2023-10-16 15:22:16.719 7f90bb332700 -1
librbd::image::PreRemoveRequest: 0x7f90a80041a0
check_image_watchers: image has watchers - not removing
Removing image: 0% complete...failed.
rbd: error: image still has watchers
This means the image is still open or the client using it crashed.
Try again after closing/unmapping it or waiting 30s for the crashed
client to timeout.
============================
It is also not being deleted from dashboard.
============================
Even we tried to list the watcher but it is not returning anything
like no such file or directory ,
============================
"rbd info iscsi-images/tegile-500tb"
rbd: error opening image tegile-500tb: (2) No such file or directory
============================
It is not showing on "rbd showmapped" output as well for that
particular images, hence we can not unmap it.
We can not restart iscsi gateway because that is being running and
we can not interrupt it.
===========================
Suggest how to fix this issue,
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