envoyproxy/envoy

Expose Cluster Slots Commands to Downstream Clients

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#24,960 opened on Jan 16, 2023

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area/redishelp wanted

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Description

Redis cluster protocol suggests to return Cluster Slots command with NULL as endpoint address when running behind a load balancer.

This feature request is support CLUSTER SLOTS command to downstream clients with NULL as endpoint.

Our use case is to support existing redis cluster clients that are migrating to Envoy continue work in the same way using their existing redis clients like Lettuce.

Contributor guide

Research direction
Study Envoy's Redis proxy filter code to understand how cluster slots are currently handled and how to modify them to return NULL for downstream clients behind a load balancer.
Tech stack
cpp
Domain
backendnetworking
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.
3-5 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
GitC++Redis
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50