Decision Guide: Enabling Outlier Detection in Envoy Proxy Clusters
Learn how to decide between consecutive‑error and success‑rate outlier detection in Envoy, configure it, and validate the effect with admin endpoints.
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Zero-Downtime Config Updates with Envoy xDS: How CDS, EDS, LDS, and RDS Work Together
Envoy's xDS API splits config into LDS, RDS, CDS, and EDS resources pushed incrementally over gRPC — enabling zero-downtime routing changes, canary deployments via EDS weight adjustments, and fleet-wide consistency without proxy restarts. Covers ADS atomic updates and Delta xDS bandwidth savings.
Using Envoy Outlier Detection to Protect Canary Releases
Learn how Envoy’s outlier detection automatically removes flaky upstream hosts during canary rollouts, with a practical configuration example, verification steps, and trade‑off guidance.
Using Envoy’s Local Rate Limit to Shield Services from Traffic Spikes
Learn how Envoy’s built‑in local rate‑limit filter protects downstream services from traffic spikes using a token‑bucket algorithm, with a concrete configuration example and verification steps.
Using Envoy’s Request Mirroring for Safe Canary Testing
Learn how Envoy’s request mirroring lets you validate new API changes in production without affecting users. Follow a step‑by‑step guide, see a concrete example, and understand trade‑offs for safe deployment.
Protect Backends from Slow‑Client Exhaustion with Envoy Timeouts
Slow clients can tie up backend connections and drain resources. This guide shows how to use Envoy’s HTTP Connection Manager timeouts to automatically close idle or stalled connections, protect services, and preserve latency.
Diagnosing and Fixing Envoy Outlier Detection Storms
When Envoy starts ejecting hosts, 503s surge. This guide walks you through diagnosing the cause, tuning outlier detection, verifying fixes, and knowing when to involve SREs.
Taming 5xx Cascades in Envoy with a Careful Retry Policy
Transient 5xx from an upstream can cascade into latency spikes. A bounded Envoy HTTP connection manager retry policy with specific retry_on codes, exponential backoff, and per-try timeout absorbs blips without amplifying load.
Configuring Envoy’s Rate Limit Filter for Per‑Route Traffic Control
Learn how to protect a backend service by applying Envoy’s built‑in Rate Limit Service filter to a specific route, with a concrete configuration example and operational considerations.
grpc