[openstack-dev] [nova] Virtuozzo (Compute) CI is incorrectly patching for resize support

Matt Riedemann mriedem at linux.vnet.ibm.com
Tue Jun 14 21:51:32 UTC 2016

It was pointed out today in IRC that the Virtuozzo CI has been failing 
on this change for the libvirt imagebackend refactor:


Diana was having a hard time sorting out the line numbers in the stack 
trace though from the logs, because they didn't exist in her series.

Long story short, that's because the job checks to see if the change is 
the change that adds resize support for virtuozzo:


And if not, it fetches that change:

23:48:46 2016-06-10 23:48:58.863 | + cd /opt/stack/new/nova
23:48:46 2016-06-10 23:48:58.872 | + [[ 282580 -ne 182257 ]]
23:48:46 2016-06-10 23:48:58.875 | + git fetch 
https://review.openstack.org/p/openstack/nova refs/changes/57/182257/37
23:48:59 2016-06-10 23:49:11.357 | From 
23:48:59 2016-06-10 23:49:11.359 |  * branch 
refs/changes/57/182257/37 -> FETCH_HEAD
23:48:59 2016-06-10 23:49:11.366 | + git cherry-pick FETCH_HEAD
23:48:59 2016-06-10 23:49:11.689 | [detached HEAD 44b6772] libvirt: 
virtuozzo instance resize support

It's not valid to patch Nova for your CI when testing other changes, it 
breaks the whole point of CI testing if you have to patch things in it 
that aren't in the actual dependency change or repo - because when it 
fails, like in this case, one doesn't know if it's their actual change 
that's broken or the patch in the CI job.

I'm assuming this was done because I asked for the Virtuozzo CI to run 
the resize tests in tempest against 
https://review.openstack.org/#/c/182257/ - which it is, but that didn't 
mean also do it for all other changes in Nova. The CI job should 
conditionally enable those tests when testing change 182257 but not 
anything else until that's merged.

As a side note, the job isn't fetching the latest patch set of the 
resize change anyway, at least not as of last week, it's fetching patch 
set 37 but 39 is the latest.

Anyway, this isn't meant to shame, but to inform and correct. No one 
from the Virtuozzo team was in the nova IRC channel when we discovered 
this, so I needed to get it into the dev list.

But please get this fixed ASAP since it's invalidating the Virtuozzo CI 



Matt Riedemann

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