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Going Beyond the Device Heart Beat
Balwinder Kaur, Principal Software Engineer
Agenda
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• Introduction• The Basics• An IoTWorld
o Device Visibilityo Application Visibility
• Best Practices for End to End Performance Monitoring• Unique Challenges of IoT• Q&A• SummaryDisclaimer: "Opinions expressed are solely my own and do not express the views or opinions of my employer."
Introduction
Connected Things Disrupt Business Models
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Oslo Smart Lighting
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“IoT devices directly, or indirectly, impact the
bottom line of a business."
Making the headlines
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How do I prevent an NYT moment?
The Basics
The Device
What is an IoT Device?
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Traditional Embedded Device+
Connectivity+
Cloud Services
Are all IoT “Things” equal?
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• No• A very fragmented space• Classify to manage
GatewayEndpoints
w/Routing
Endpoints w/o
RoutingSensor Rich |Touches the Physical WorldDigital
The Cloud
IT Teams Monitor Cloud Services
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Infrastructure Monitoring• Server Monitoring• Network Monitoring
Application Performance Monitoring (APM) Systems
• Web applications & containers• Database Performance• Byte Code Injection is popular
Log Files Crash Reports
Application Performance Monitoring System
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“One of the most important steps in any application performance monitoring initiative is combining data from disparate monitoring "silos" into a correlation engine and dashboard. The dashboard makes data logs easier to read and saves IT staff from memory-‐dependent and error-‐prone manual correlation and analysis.”
• Source: http://searchenterprisedesktop.techtarget.com/definition/Application-‐monitoring-‐app-‐monitoring
An IoT World
End to End IoT Solution Architecture Diagram
Changing Business Models
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• Performance monitoring must be extended to cover the IoTDevices
IoT Device Cloud Services
End to End Reliability
Device Visibility
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IoT Device Visibility
Device Management
Systems
Device Management
Device Health
Application Performance Management
Application Health(on device)
Application Health(transactions)
Not operational
data
On device; closely related
Main Focus Area
Device Health
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System Performanceü CPU Usageü Memory Usageü Power Levelü Uptime ü Disk I/Oü Network Healthü Location Information
Fast Moving Data
Device Configurationü OSü Modelü Manufacturerü Hardware, Firmware, S/W
Version
Slow Moving Data
Application Visibility
IoT Device Cloud Services
End to End Reliability
Application Transaction Health
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1) Calls per minute2) Errors per minute
3) Latency (in milliseconds)4) Crash Reporting
Measurement Metrics
Two Classes of Problems
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ü Transaction Health is goodü Device Health is
deteriorating
ü Device Health is good.ü Transaction Health is poor
ü Network Problemsü S/W Version mismatchü S/W-‐ H/W version mismatch
Device Management System Application Performance Management Systems
Key Performance Indicator -‐ MTTR
24
.Trapped Metrics
Manual Correlation
ManualRemediation
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Major Reasons Contributing to a Poor MTTR (Mean-‐Time-‐to-‐Resolution)
Gap between Operations
and Engineering
Unified Dashboard
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Unified Monitoring
Device Health Application Health Infrastructure Health
IoT Device Cloud Services
Device Management Systems APM Systems
End-‐to-‐End Performance MonitoringBest Practices for IoT
Top Five Features
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Performance
Correlation
Remediation
Analytics
Availability
Device Side Instrumentation
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Capture and report Device Metrics
Capture and report Device Events
Unified Monitoring System
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AggregatesMetrics and Events
Correlates Events Alerts Remediates
Unique Challenges that IoT brings(aka devil is in the details)
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Choosing Instrumentation Agents for IoT Devices
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Web Agent Embedded Agent
Message Payload Format JSON ProtoBuf, CBOR. BSON
Application Layer HTTP/HTTPS MQTT/MQTT-‐SN,CoAP
Security TLS DTLS
Transport Layer TCP/UDP UDP
Network Layer IPv4/IPv6 IPv6/ 6LowPAN
Link Layer Ethernet, 802.11 802.15.4
Choosing Instrumentation Agents for IoT Devices (contd)
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• Small static and runtime memory footprint• Small disk usage. • Meets or exceeds security requirements of the IoT Device
• Support for your favorite programming language.
OPEN DISCUSSION
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SUMMARY
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Best Practices
ü Monitor Device Healthü Understand what device data is importantü Understand what device applications are importantü Monitor End Devices and Gatewaysü Monitor Application Transactions Healthü Monitor Cloud Servicesü Embedded Agents should meet power, security and privacy requirementsü Unified View of the world reduces MTTR
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A Heart Beat is Important.But do not be on Life Support.
Stay IoT Healthy!balwinder.kaur@appdynamics.com
Thank You
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