envoyproxy/envoy

Graceful shutdown with HTTP2 CONNECT

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#34,897 opened on Jun 25, 2024

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area/httphelp wanted

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Description

Title: Graceful shutdown with HTTP2 CONNECT

Description: We use Envoy to tunnel HTTP traffic over HTTP2 CONNECT.

When the server is shutting down, it will send us a GOAWAY. However, Envoy will still treat the connection as live.

What we want is for the inner-HTTP to stop using the HTTP2 CONNECT transport when it gets a GOAWAY, and only send new inner-http requests on a new CONNECT tunnel.

Contributor guide

Research direction
Investigate how Envoy handles GOAWAY for HTTP2 CONNECT tunnels and design a mechanism to stop using the tunnel after receiving GOAWAY.
Tech stack
cpp
Domain
networking
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.
Half day
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
cpphttp2
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30