1. Doctor PoC Booth Vitrage Demo

2. Vitrage in a nutshell
Official OpenStack project for Root Cause Analysis
Vitrage Functions
Root Cause Analysis
Understand what caused faults to occur
Deduced alarms and states
Raising alarms and modifying states based on system insights
Holistic & complete view of the system

3. Vitrage User Interface (Horizon plug-in)
Hierarchical View
Root Cause Analysis

4. Vitrage – Under the Hood
Architecture Highlights
Resource topology graph
Reflect how different entities relate to one another
RCA is all about relationships!
Multiple data sources
Extendible
Easy to add new data sources
Configurable business logic
Template-based behavior
Clear visualization of Vitrage insights

5. Vitrage as Doctor Inspector
Push and pull interfaces to various monitoring tools (e.g. Nagios, Zabbix) and to OpenStack projects -> fast failure notification
Mapping between physical and logical failures
Expose more faults and changes to resources (deduced alarms and states)
Provide Root Cause Analysis indicators to the application manager
Can be configured differently for different systems

6. Vitrage + Doctor – Demo Flow
Vitrage receives alarm from Nagios once host NIC fails.
Vitrage finds affected resources based on its cloud topology graph and templates.
Vitrage calls Nova to mark host down and update the states of the affected VM(s).
Nova notifies AODH which raises an alarm, Application Manager gets alarm notification and transfers control to VM2 (STBY)
Monitor
Aodh Ceilometer
Manager
Virtualized Infrastructure
(Resource Pool)
Alarm
Conf.
Application
Controller
Nova
Resource Map
Vitrage
6. Notify all
7. Notify Error
1. Configure Aodh event alarm
Templates
Nagios
3. Notify Raw Failure
4. Find Affected
5. Update State
2. Monitor
HOST1
VM1
HOST2
VM2
HOST NIC
8. Switch to STBY

7. Vitrage Demo – Root Cause Analysis
NIC Down
Host Down
VM 1 unreachable
Service unavailable
VM unreachable
Nagios Alarm
Vitrage/ AODH Alarm
Vitrage Alarm
Causes

8. Vitrage Demo – States View
Availability Zone
Host 1
Host 2
VM1
VM 2
My Service 1
My Service 2
APP
Before failure
ACT
STBY
Availability Zone
Host 1
Host 2
VM1
VM 2
My Service 1
My Service 2
APP
After NIC failure
ACT
ERROR
STBY