01 - Observability Fundamentals - Metrics, Logs, Traces e Three Pillars
Observability vs monitoring, three pillars (metrics, logs, traces), integration, telemetry basics, statistica (89% richiedono OTel), tool landscape.
Observability moderna: OpenTelemetry, distributed tracing, metrics, logging, alerting, SLO/SLI e strategie per sistemi osservabili in produzione.
Observability vs monitoring, three pillars (metrics, logs, traces), integration, telemetry basics, statistica (89% richiedono OTel), tool landscape.
OTel architecture, API vs SDK, OTLP protocol, language-specific SDKs (Python, Java, Go), maturity levels, adoption roadmap.
Tracing fundamentals, trace propagation, span context, parent-child relationships, W3C Trace Context standard, OpenTelemetry tracing API.
Auto-instrumentation benefits/limits, agent-based, manual span creation, custom metrics, trade-offs, hybrid approach.
OTel SDK setup, creating spans programmatically, metric recording, attributes, events, context management, Java/Python examples.
OTel Collector architecture, receivers, processors (batching, sampling, filtering), exporters, configuration, deployment patterns (agent, gateway, sidecar).
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