Hi,
Related to instance being stuck in "image_snapshot" for extended period of
time, it is easy to "recover" the instance (script uses pre-defined timeout
to "guess" that snapshot has hung and will never complete) and bring it back to
"usable" state, I also the *inform the user that their snapshot attempt has
failed*.
The image goes thru the following statuses during normal case : Queued ->
Saving -> Active -> Deleted
If the upload of the image fails checksum verification, status is marked as
"killed" (Using _safe_kill() - a private method)
Neither of "killed" and "deleted" instances are shown to the user either in
Dashboard (Horizon) or "nova image-list"
So when "recovering" hung snapshot - what status should be set for the image ?
(Such that user knows of the error)
I'm thinking that we need to either Introduce a new status like "error"
OR
1. Modify glance/registry/db/api.py : image_get_all() to return images
with "killed" status (currently it is explicitly filtered out)
AND
2. Expose an API to set the image status to "killed" (Currently
_safe_kill is a private method)
When I tried #1 above locally and set status of one of the images to "killed"
directly in DB, manually then :
1. nova image-list showed this image status as "ERROR"
2. Dashboard/Horizon show the status as "Killed"
Please suggest if you can think of better way to handle this.
-Mandar
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