3abc36d02c82ef9dd3a8978a7e17b6fd6ad76de8

Fix to make sure instance_type_id is always populated on InstanceUsage, even if the compute.instance.create operation is split acreooss multiple requests. Change-Id: Ic6243e8d5156d0e49a8fa1748a6a152724f01a14
StackTach
StackTach is a debugging / monitoring utility for OpenStack ([Open]StackTach[ometer]). StackTach can work with multiple datacenters including multi-cell deployments.
Watch the video here: http://www.youtube.com/watch?v=pZgwDHZ3wm0
Overview
OpenStack has the ability to publish notifications to a RabbitMQ exchange as they occur. So, rather than pouring through reams of logs across multiple servers, you can now watch requests travel through the system from a single location.
A detailed description of the notifications published by OpenStack is available here
Documentation
Description
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