Comment 17 for bug 1474332

Reviewed: https://review.fuel-infra.org/10084
Submitter: mos-infra-ci <>
Branch: openstack-ci/fuel-6.0-updates/2014.2

Commit: 67c896aaed878a8b3596f49934911379767054f8
Author: yanyanhu <email address hidden>
Date: Tue Sep 8 17:02:14 2015

ASG scaling account for cooldown timestamp & in-progress

There are cases where it takes a long time to create a new resource as
requested by the scaling operation on an ASG resource, for instance, a
nova server creation followed by a complex SoftwareDeployment. During
this process, additional alarms may come in but failed to be blocked
by the current cooldown checking mechanism because the very first
timestamp has yet to be generated. This is leading to unexpected size
adjustment to the ASG.

This patch augments the existing cooldown checking mechanism with a
scaling-in-progress test so that additional alarms arriving during
the very first scaling operation will be ignored.

Closes-Bug: #1474332
Co-Authored-By: yanyanhu <email address hidden>
Change-Id: Ib8aa83eed366df7097c9cbb9247eca866ae4b620