envoyproxy/envoy

allow close downstream idle connection while draining

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#42 305 ouverte le 30 nov. 2025

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area/drainarea/listenerenhancementhelp wanted

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Description

Description: When stopping envoy by using curl -X POST http://localhost:15000/drain_listeners?graceful Envoy only sending Connection: CLOSE on HTTP1, that means idle connection will be Established after idle_timeout at most.

Background: We are building AI Gateway based on Envoy, we hope idle_timeout could be large enough. Meanwhile we hope downstream idle connections could be closed as soon as possible, so that the the Gateway could be shutdown as early as possible.

[optional Relevant Links:] https://www.envoyproxy.io/docs/envoy/latest/operations/admin#operations-admin-interface-drain

Maybe close downstream idle connection could be the default behaviour or add a new configuration to enable it.

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