47ee547018
Based on current implementation, image in pending_delete status can't be recovered. This patch will fix the document issue. Change-Id: If4fe75cfb759ae0288f378cee77a71be4a306456
96 lines
2.9 KiB
ReStructuredText
96 lines
2.9 KiB
ReStructuredText
..
|
|
Copyright 2010 OpenStack Foundation
|
|
All Rights Reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
not use this file except in compliance with the License. You may obtain
|
|
a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
License for the specific language governing permissions and limitations
|
|
under the License.
|
|
|
|
Image Statuses
|
|
==============
|
|
|
|
Images in Glance can be in one the following statuses:
|
|
|
|
* ``queued``
|
|
|
|
The image identifier has been reserved for an image in the Glance
|
|
registry. No image data has been uploaded to Glance and the image
|
|
size was not explicitly set to zero on creation.
|
|
|
|
* ``saving``
|
|
|
|
Denotes that an image's raw data is currently being uploaded to Glance.
|
|
When an image is registered with a call to `POST /images` and there
|
|
is an `x-image-meta-location` header present, that image will never be in
|
|
the `saving` status (as the image data is already available in some other
|
|
location).
|
|
|
|
* ``active``
|
|
|
|
Denotes an image that is fully available in Glance. This occurs when
|
|
the image data is uploaded, or the image size is explicitly set to
|
|
zero on creation.
|
|
|
|
* ``killed``
|
|
|
|
Denotes that an error occurred during the uploading of an image's data,
|
|
and that the image is not readable.
|
|
|
|
* ``deleted``
|
|
|
|
Glance has retained the information about the image, but it is no longer
|
|
available to use. An image in this state will be removed automatically
|
|
at a later date.
|
|
|
|
* ``pending_delete``
|
|
|
|
This is similar to `deleted`, however, Glance has not yet removed the
|
|
image data. An image in this state is not recoverable.
|
|
|
|
|
|
.. figure:: /images/image_status_transition.png
|
|
:figwidth: 100%
|
|
:align: center
|
|
:alt: Image status transition
|
|
|
|
This is a representation of how the image move from one status to the next.
|
|
|
|
* Add location from zero to more than one.
|
|
|
|
* Remove location from one or more to zero by PATCH method which is only
|
|
supported in v2.
|
|
|
|
Task Statuses
|
|
==============
|
|
|
|
Tasks in Glance can be in one the following statuses:
|
|
|
|
* ``pending``
|
|
|
|
The task identifier has been reserved for a task in the Glance.
|
|
No processing has begun on it yet.
|
|
|
|
* ``processing``
|
|
|
|
The task has been picked up by the underlying executor and is being run
|
|
using the backend Glance execution logic for that task type.
|
|
|
|
* ``success``
|
|
|
|
Denotes that the task has had a successful run within Glance. The ``result``
|
|
field of the task shows more details about the outcome.
|
|
|
|
* ``failure``
|
|
|
|
Denotes that an error occurred during the execution of the task and it
|
|
cannot continue processing. The ``message`` field of the task shows what the
|
|
error was.
|