envoyproxy/envoy

Latency outlier detection

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#288 opened on Dec 13, 2016

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area/outlier_detectionenhancementhelp wanted

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Description

Overall tracking issue for major outlier detection features:

  • Consecutive 5xx
  • Periodic SR
  • Periodic latency

Contributor guide

Research direction
Study existing outlier detection implementation for consecutive 5xx and periodic success rate; understand the outlier detection framework (e.g., OutlierDetectorImpl, EventLogger). Identify where latency metrics can be integrated (e.g., from upstream response times). Implement a new latency outlier detector that monitors cluster level latency statistics and triggers ejection when thresholds are exceeded.
Tech stack
cpp
Domain
backendinfrastructure
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++Envoy internals
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
10