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When a Consul‑registered service shows a critical status even though its process is running, the issue is almost always a connectivity or configuration problem. This guide walks through the most common root causes, shows how to verify each, and lists concrete fixes and escalation steps.
A guide to deciding when native Nomad service discovery suffices versus Consul‑integrated discovery for intra‑cluster traffic, covering design, trust, checks, and failure modes.
A diagnostic guide for Consul operators: why dead service instances linger in the catalog, how to pinpoint the cause (check misconfiguration, missing deregistration, ungraceful node loss, anti‑entropy failure), and step‑by‑step fixes with verification methods.
A technical guide for choosing between Moleculer transporters (NATS, Redis, TCP, Kafka), comparing their impact on service discovery, RPC latency, and cloud compatibility.
Kraken.js service boots and listens locally but peers get 503/ECONNREFUSED via kraken-client. A diagnostic guide for Consul registration, health checks and nconf config drift with ordered checks and fixes.
Register a health-checked service, resolve it over Consul's DNS interface on port 8600, route .consul queries from the host resolver, and verify that failing instances drop out of answers.
Client-side load balancing in gRPC lets clients discover back-ends and distribute traffic without a separate load balancer. Start with round-robin and DNS or Kubernetes discovery, then verify with connection tracing and distribution checks.
Prometheus reports down targets for a healthy Kubernetes service this diagnostic guide walks selector mismatches endpointSlice reconciliation and scrape config fixes to restore metric ingestion.
Stop exposing your databases to the public internet. Learn how to use Railway's private networking to secure internal service communication and reduce latency.
consul
nats
krakenjs
grpc
prometheus
railway