Image is not clean when uploading image kill glance process

[lizheming]

version: the latest
steps：
1. glance service is OK, upload a image
2. at the same time, kill glance process
3. restart glance service，get the info of this image, the status is "saving"
4. delete this image, but the image data on disk is not cleaned up
cmd:
curl -i -H "Content-Type:application/octet-stream" -H "X-Auth-Token:3e5f9562e9cc4e5f968fe2866bfe0edf" -X PUT -T test.img http://127.0.0.1:9292/v2/images/$image_id/file

[Zhi Yan Liu (lzy-dev)]

There is a related fix at https://bugs.launchpad.net/glance/+bug/1217838

[lizheming (lizheming-li)]

thanks Zhi Yan LIu.
bug 1217838 described that image has deleted but creat image success.
this bug describe that image has deleted but image data is not clean up.
so this is differet bug. I think.

[Zhi Yan Liu (lzy-dev)]

Since currently we save image location to db only when image chunks got saved, so, even user executes 'image-delete' when glance-api comes back, from glance's eyes there's no any locations belong with that 'bad' image. so, the chunks couldn't be removed any more.