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fix(remoteingress-protocol): reduce per-stream flow control windows and increase control channel buffering

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This commit is contained in:
Jürgen Kunz
2026-03-18 00:02:20 +00:00
parent ce7ccd83dc
commit 28a0c769d9
6 changed files with 36 additions and 29 deletions
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4
rust/crates/remoteingress-core/src/edge.rs
View File

@@ -497,7 +497,7 @@ async fn connect_to_hub_and_run(
// QoS dual-channel: ctrl frames have priority over data frames.
// Stream handlers send through these channels → TunnelIo drains them.
let (tunnel_ctrl_tx, mut tunnel_ctrl_rx) = mpsc::channel::<Bytes>(256);
let (tunnel_ctrl_tx, mut tunnel_ctrl_rx) = mpsc::channel::<Bytes>(512);
let (tunnel_data_tx, mut tunnel_data_rx) = mpsc::channel::<Bytes>(4096);
let tunnel_writer_tx = tunnel_ctrl_tx.clone();
@@ -756,7 +756,7 @@ async fn handle_client_connection(
// streams due to channel overflow — backpressure slows streams, never kills them.
let (back_tx, mut back_rx) = mpsc::unbounded_channel::<Bytes>();
// Adaptive initial window: scale with current stream count to keep total in-flight
// data within the 32MB budget. Prevents burst flooding when many streams open.
// data within the 200MB budget. Prevents burst flooding when many streams open.
let initial_window = remoteingress_protocol::compute_window_for_stream_count(
active_streams.load(Ordering::Relaxed),
);

4
rust/crates/remoteingress-core/src/hub.rs
View File

@@ -349,7 +349,7 @@ async fn handle_hub_frame(
// Create channel for data from edge to this stream
let (stream_data_tx, mut stream_data_rx) = mpsc::unbounded_channel::<Bytes>();
// Adaptive initial window: scale with current stream count
// to keep total in-flight data within the 32MB budget.
// to keep total in-flight data within the 200MB budget.
let initial_window = compute_window_for_stream_count(
edge_stream_count.load(Ordering::Relaxed),
);
@@ -708,7 +708,7 @@ async fn handle_edge_connection(
// QoS dual-channel: ctrl frames have priority over data frames.
// Stream handlers send through these channels -> TunnelIo drains them.
let (ctrl_tx, mut ctrl_rx) = mpsc::channel::<Bytes>(256);
let (ctrl_tx, mut ctrl_rx) = mpsc::channel::<Bytes>(512);
let (data_tx, mut data_rx) = mpsc::channel::<Bytes>(4096);
// Spawn task to forward config updates as FRAME_CONFIG frames