alibaba/sentinel-golang

Enhance the probe mechanism in circuit breaker

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#151 opened on May 21, 2020

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area/circuit-breakinggood first issuekind/enhancement

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Description

Issue Description

Type: feature request

Describe what feature you want

Currently, the circuit breaker implement based on state machine. Details refer to https://github.com/alibaba/sentinel-golang/issues/122

  1. Probing from Open to Half-Open only once. If succeed to probe, changes state to Closed, if not, changes state back to Open.
  2. Timeout of probing is fixed. Maybe need somehow backoff to optimize the probe mechanism

Additional context

Add any other context or screenshots about the feature request here.

Contributor guide

Research direction
Study the current circuit breaker state machine implementation and propose a backoff strategy for probing.
Tech stack
go
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
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
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55