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Questions

Open

  • How do Grafana Adaptive Metrics and Adaptive Logs actually work internally? What is the ROI in practice? — observability/lgtm/operations
  • What is the production experience of running LGTM in a single AZ vs multi-AZ? What is the actual cost difference? — observability/lgtm/benchmarks
  • How does tail-based sampling in Alloy compare to head-based sampling for Tempo cost optimization? — observability/lgtm/operations
  • What is the Tempo 3.0 decoupled architecture, and how does it change deployment? — observability/lgtm/architecture
  • How does the OTel Operator for Kubernetes compare to Alloy DaemonSet for auto-instrumentation? — observability/lgtm/how-it-works
  • What are the concrete limitations of running LGTM in monolithic/SSD mode at medium scale (1M series, 100 GB/day logs)? — observability/lgtm/architecture
  • How does SigNoz (ClickHouse-backed, single binary) compare to LGTM in real-world operational overhead? — future comparison note
  • What is the migration path from Datadog to self-hosted LGTM, and what are the gotchas (agent migration, dashboard porting, alert porting)? — observability/lgtm/operations
  • How mature is eBPF-based auto-instrumentation for Go applications in production? — observability/lgtm/how-it-works
  • What are the best practices for Loki structured metadata (introduced in Loki 3.x) vs traditional labels? — observability/lgtm/operations

Answered

  • What is the all-in-one dev image for LGTM? — grafana/otel-lgtm, includes OTel Collector + all backends + Grafana, resolved in commands-and-recipes
  • How does multi-tenancy work across LGTM? — via X-Scope-OrgID header on all API calls, requires auth proxy, resolved in observability/lgtm/how-it-works
  • Should LGTM components share an object storage bucket? — No, use separate buckets per component (Mimir, Loki, Tempo), resolved in observability/lgtm/architecture
  • How does cross-signal correlation work? — Exemplars (metrics→traces), Derived Fields (logs→traces), Trace-to-Logs/Metrics/Profiles (traces→everything), resolved in observability/lgtm/how-it-works
  • What are the four query languages? — PromQL (metrics), LogQL (logs), TraceQL (traces), FlameQL (profiles), resolved in observability/lgtm/how-it-works