Application Performance Monitoring Flashcards
General APM Definition
Monitoring all aspects of your application: Frontend, backend, infrastructure
Core inputs to APM
METL (metrics, events, traces, logs). Also known as telemetry signals.
Four Golden Signals in monitoring
Latency, Traffic, Saturation, Errors
Latency
Time required for data to travel across a network
Traffic
Volume of incoming and outgoing requests
Saturation
network resources consumption %
Errors
Corrupted or lost data packets during transmission
Primary Insights
Availability, Reliability, Scalability, Duration
Core Components of Data Dog
Agent, API and Integrations
Integrations
Bridging two isolated software applications
Agent
Middle layer between application and data dog website. Two components: collector (every 15 seconds) and forwarder