Blog

Add OpenTelemetry manual spans to a Python application. See parent-child timing, safe attributes, and a checklist for missing spans.

Correlate logs with traces using trace IDs, span IDs, and a request test. Find missing context across services without relying on timestamps alone.

Set up Flask performance monitoring with request metrics and traces. Find slow routes, database calls, and failed exports before users report them.

Monitor FastAPI routes with request metrics and OpenTelemetry traces. Check latency, errors, and downstream work before setting alerts.

Set ELASTIC_APM_TRANSACTION_SAMPLE_RATE, check why it seems ignored, and map the setting to OpenTelemetry sampling during a migration.

Set up FastAPI tracing with OpenTelemetry. Connect request, SQLAlchemy, and HTTPX spans, then verify trace context across services.

Migrate to OpenTelemetry without downtime with a parallel Collector path, trace parity checks, and a safe service-by-service cutover.

Use this PHP observability checklist to trace requests, surface PDO and HTTP bottlenecks, and inspect runtime state without redeploying.

Compare the best APM tools for 2026 by debugging workflow, OpenTelemetry fit, pricing model, and runtime-state visibility.

Use this SigNoz Laravel guide to wire OpenTelemetry, keep queue context intact, and compare that setup with a managed Laravel APM path.

Build NestJS observability across HTTP requests and queue jobs. Compare NestJS Observe, OpenTelemetry, and Tracekit coverage with a practical test.

Visualize OpenTelemetry traces online, read the waterfall, fix export errors, and choose the right OTel trace viewer for each debugging job.