Convergence: Unhandled exception in resource plugin causes stack to get stuck in-progress

[Jason Dunsmore]

When convergence_engine is enabled, an unhandled AttributeError[1] causes a stack to get stuck in-progress forever. When convergence_engine is disabled, the stack action completes successfully and the value of the availability zone attribute is "null".

[1] https://github.com/openstack/heat/blob/c758e25/heat/engine/resources/aws/ec2/instance.py#L385-L386

[Jaime Guerrero (jg3755)]

Hi Jason. Was there a particular template you used that triggered this exception?

[Jason Dunsmore (jasondunsmore)]

Hi Jaime, here is the template:
http://paste.openstack.org/show/516312/

But you have to turn off the "OS-EXT-AZ:availability_zone" extension in Nova to see the problem.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/339250

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/339837

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/339837
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=e7e13ca4d0558615aa9f876466303e3821cd7073
Submitter: Jenkins
Branch: master

commit e7e13ca4d0558615aa9f876466303e3821cd7073
Author: Jason Dunsmore <email address hidden>
Date: Fri Jul 8 16:31:35 2016 -0500

    Handle case where the Nova AZ extension is disabled

    ..in the AWS::EC2::Instance's availability_zone attribute resolution.

    Change-Id: I4ef3ff3498255f589182e1f736a3d17eafaf1a00
    Closes-Bug: #1592110

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/heat 7.0.0.0b3 development milestone.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Zane Bitter (<email address hidden>) on branch: master
Review: https://review.openstack.org/339250
Reason: This was resolved by I56ecfa7a9a328d1435c1f34ab14e56effb81bb21