@arkodg Maybe we can refer to Google VRP edge server configuration.

overload_manager:
  refresh_interval: 0.25s
  resource_monitors:
  - name: "envoy.resource_monitors.fixed_heap"
    typed_config:
      "@type": type.googleapis.com/envoy.extensions.resource_monitors.fixed_heap.v3.FixedHeapConfig
      # TODO: Tune for your system.
      max_heap_size_bytes: 2147483648  # 2 GiB
  actions:
  - name: "envoy.overload_actions.shrink_heap"
    triggers:
    - name: "envoy.resource_monitors.fixed_heap"
      threshold:
        value: 0.95
  - name: "envoy.overload_actions.stop_accepting_requests"
    triggers:
    - name: "envoy.resource_monitors.fixed_heap"
      threshold:
        value: 0.98

https://www.envoyproxy.io/docs/envoy/latest/configuration/best_practices/edge#best-practices-edge

type overloadManager struct {	
	MaxHeapSizeBytes int64
}

Gateway will use overloadmanage (passing envoy configuration similar to Google VRP edge server configuration) when configuring overloadManager's MaxHeapSizeBytes, otherwise it will not be enabled. Is this method OK?

Global downstream connection limits. #1966

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