1.
Reports from the Field
Azure Functions in Practice
Adam Jones
Chief Technology Officer
LHP Telematics, LLC
lhptelematics.com

2.
Telematics?
Tele - far
matics - acts

3.
IoT

4.
CAN – Controller Area Network

5.
TCU
Telematics
Control Unit

6.
The LHPT
Backend
Architecture
Shared Cloud Service Parent
Child Endpoints

7.
Concerns
Do we continue using shared hosts?
Are cloud services obsolete?

8.
Tip #1
Prepare for hosting
diversity now

9.
Dependent libraries
available?
Runtime behavior
changes?
Alternative App Config

10.
Concern
Is our Compute Expense matching our Compute Load?

11.
AVG: ~500 Msgs / Sec MAX: > 2500 Msgs / Sec MIN: < 200 Msgs / Sec

12.
PROD TEST
DEV

13.
PROD
TEST
DEV

14.
Automated Scaling
On a Schedule
Based on a metric (CPU%)
Cloud Services Function
Based on queue throughput
Minimum Instance Count: 1 Minimum Instance Count: 0
Coarse Scaling Fine Scaling

15.
Tip #2
Choose functions
for volatile loads

16.
Tip #3
Choose functions
for rare handlers

17.
Theft deterrence and recovery is time-sensitive

18.
Burst Load

19.
Tip #4
Choose functions
for time-sensitive
loads

20.
How does Functions Pricing Work?

21.
Premium and App Service Pricing
Virtual Network Existing App Service

22.
Consumption Plan
Resource Consumption
Execution Count
$0.000016/GB-s
$0.20 per million executions

23.
TIME
Memory
What is a GB-s?

24.
Tip #5
Avoid functions if
dimensions of cost
are uncontrollable

25.
Tip #6
Beware the
Ephemeral
Disk
(AND RAM!)

26.
Caching

27.
Logging/Monitoring with Functions

28.
Tip #7
Consider Secondary
Effects

29.
Will your persistence scale?
Will your transport scale?
Will your third parties scale?

30.
ASB Premium Tier (4MU)

31.
Tip #8 – Only Send Necessary Messages

32.
Should you throttle your Function?
How do you throttle a Function?

33.
Daily Usage Quota

34.
Dynamic Scale Out

35.
Tip #9
Functions are for Async
(Out of Order)
Processing

36.
Review

37.
Review

38.
Review

39.
CalAmp Listener
Morey Listener
Xirgo Listener
LHPT Listener
Satellite Listener
Listener Endpoints
(Protocol Gateways)
Report Recorder
Archive Recorder
Arithmetic Adjustments
Reporting Endpoints
Curfew Alerts
Geofence Alerts
Data Alerts
Maintenance Alerts
Business Logic Endpoints
LHPT Sender
OEM #1 Custom Sender
OEM #2 Custom Sender
Email Sender
Sender Endpoints

40.
CalAmp Listener
Morey Listener
Xirgo Listener
LHPT Listener
Satellite Listener
Listener Endpoints
(Protocol Gateways)
Report Recorder
Archive Recorder
Arithmetic Adjustments
Reporting Endpoints
Curfew Alerts
Geofence Alerts
Data Alerts
Maintenance Alerts
Business Logic Endpoints
LHPT Sender
OEM #1 Custom Sender
OEM #2 Custom Sender
Email Sender
Sender Endpoints

41.
Adam Jones
Chief Technology Officer
LHP Telematics, LLC
adam.jones @ lhptelematics.com
www.linkedin.com/in/adamjone
Twitter: @JadeMason