Reviewed: https://review.openstack.org/264349
Committed:
https://git.openstack.org/cgit/openstack/nova/commit/?id=9a4ecfd96dad32fd4726c46dc6d89e956f1f2a29
Submitter: Jenkins
Branch: master
commit 9a4ecfd96dad32fd4726c46dc6d89e956f1f2a29
Author: Chris Dent <cd...@anticdent.org>
Date: Mon Jan 11 12:05:00 2016 +0000
Propagate qemu-img errors to compute manager
When qemu-img is called with oslo_concurrency.process_utils.execute
the ProcessExecutionError was raised when qemu-img either fails to
execute or has a non-zero exit code. This error did not propagate
up to the compute manager with any meaningful information meaning
that if an instance build fails the error message is the generic
"There are not enough hosts available".
This change captures ProcessExecutionError and re-raises the
exception as either InvalidDiskInfo (in qemu_img_info) or
ImageUnacceptable (in convert_image and fetch_to_raw) and makes the
manager accept this as a cause for a BuildAbortException on the
logic that if the image is bad, things are dire, let's bail.
Based on the code in qemu_img_info it appears there was a
misunderstanding of how process_utils.execute behaves so it seems
likely this problem is present elsewhere in the code. This change
attempts to only address the issue as it shows up on the new
instance path described in the related bug.
Change-Id: I4fa1c258db58c70dfbf0178b7bb13978fda3a11f
Closes-Bug: #1436166
** Changed in: nova
Status: In Progress => Fix Released
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Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1436166
Title:
Problems with images bubble up as a simple "There are not enough hosts
available"
Status in OpenStack Compute (nova):
Fix Released
Bug description:
When starting a new instance, I received the generic "There are not
enough hosts available" error, but the real reason was buried in logs,
which was that the image I was trying to use was corrupt.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1436166/+subscriptions
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