Automatically instrument your apps on Linux with the OTel Injector, no code changes, minimal setup, and support for Java, Node.js, Python, and .NET.

Prometheus 3.0 supports resource attribute promotion for OpenTelemetry metrics, enabling direct labeling without `target_info` joins.

Understand how sum_over_time() aggregates metrics in Prometheus, handles gaps, and why step size and staleness can affect accuracy.

Collect metrics with Telegraf without running Prometheus. No scraping, no TSDB tuning, just clean, push-based telemetry to your backend.

Instrument NGINX with OpenTelemetry to capture traces, track latency, and connect upstream and downstream services in a single request flow.

Visualize AWS metrics like Lambda, API Gateway, and RDS in Grafana using Last9. No agents, no code, set it up in under 10 minutes.

Instrument Kong with OpenTelemetry for end-to-end API visibility, no code changes required.

A practical guide to querying, filtering, and visualizing logs in Kibana, built for speed, scale, and real-world debugging workflows.

Know how to securely embed Grafana dashboards using iframes, covering auth, config, performance, and monitoring with Last9.

Log loss and cross-entropy are core loss functions for classification tasks, measuring how well predicted probabilities match actual labels.