Currently there's no way to force deletion of a RADOS object that
has watchers. Clients with an rbd image open watch the header
object, hence the error you saw.
There's a feature request open for this at the RADOS level:
http://www.tracker.newdream.net/issues/2339
I'm curious about why you want to delete an image even
if a vm is still using it. What's the context in which this
becomes necessary?
Josh
On 10/22/2012 11:25 PM, Dan Mick wrote:
I don't think we support that; I'm not sure how hard it would be.
Somehow we'd have to keep knowledge of the open image handle around to
fail further I/O requests, it seems. Josh?
On 10/22/2012 10:44 PM, jie sun wrote:
Yes. I want to delete the image by force, even the vm is still using it.
2012/10/23 Dan Mick <dan.mick@xxxxxxxxxxx>:
On 10/22/2012 08:10 PM, jie sun wrote:
Hi,
I create a image and map it to a virtual machine,and then mkfs and
mount
it.
I want to remove the image from mon server forcely, but it says
"Removing image: 99% complete...failed.
delete 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."
I want to know is there any other way to remove it by force?
Are you saying the vm still has the device open and is trying to use it?
But even so, you want the image to be deleted?
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