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fix(remoteingress-core): avoid spurious tunnel disconnect events and increase control channel capacity

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This commit is contained in:
Jürgen Kunz
2026-03-16 22:46:51 +00:00
parent e0c469147e
commit 3a2a060a85
4 changed files with 14 additions and 4 deletions
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6
changelog.md
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@@ -1,5 +1,11 @@
# Changelog
## 2026-03-16 - 4.6.1 - fix(remoteingress-core)
avoid spurious tunnel disconnect events and increase control channel capacity
- Emit TunnelDisconnected only after an established connection is actually lost, preventing false disconnect events during failed reconnect attempts.
- Increase edge and hub control-channel buffer sizes from 64 to 256 to better prioritize control frames under load.
## 2026-03-16 - 4.6.0 - feat(remoteingress-core)
add adaptive per-stream flow control based on active stream counts

8
rust/crates/remoteingress-core/src/edge.rs
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@@ -232,7 +232,11 @@ async fn edge_main_loop(
}
*connected.write().await = false;
let _ = event_tx.try_send(EdgeEvent::TunnelDisconnected);
// Only emit disconnect event on actual disconnection, not on failed reconnects.
// Failed reconnects never reach line 335 (handshake success), so was_connected is false.
if was_connected {
let _ = event_tx.try_send(EdgeEvent::TunnelDisconnected);
}
active_streams.store(0, Ordering::Relaxed);
// Reset stream ID counter for next connection cycle
next_stream_id.store(1, Ordering::Relaxed);
@@ -375,7 +379,7 @@ async fn connect_to_hub_and_run(
// QoS dual-channel tunnel writer: control frames (PONG/WINDOW_UPDATE/CLOSE/OPEN)
// have priority over data frames (DATA). Prevents PING starvation under load.
let (tunnel_ctrl_tx, mut tunnel_ctrl_rx) = mpsc::channel::<Vec<u8>>(64);
let (tunnel_ctrl_tx, mut tunnel_ctrl_rx) = mpsc::channel::<Vec<u8>>(256);
let (tunnel_data_tx, mut tunnel_data_rx) = mpsc::channel::<Vec<u8>>(4096);
// Legacy alias — control channel for PONG, CLOSE, WINDOW_UPDATE, OPEN
let tunnel_writer_tx = tunnel_ctrl_tx.clone();

2
rust/crates/remoteingress-core/src/hub.rs
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@@ -378,7 +378,7 @@ async fn handle_edge_connection(
// QoS dual-channel tunnel writer: control frames (PING/PONG/WINDOW_UPDATE/CLOSE)
// have priority over data frames (DATA_BACK). This prevents PING starvation under load.
let (ctrl_tx, mut ctrl_rx) = mpsc::channel::<Vec<u8>>(64);
let (ctrl_tx, mut ctrl_rx) = mpsc::channel::<Vec<u8>>(256);
let (data_tx, mut data_rx) = mpsc::channel::<Vec<u8>>(4096);
// Legacy alias for code that sends both control and data (will be migrated)
let frame_writer_tx = ctrl_tx.clone();

2
ts/00_commitinfo_data.ts
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@@ -3,6 +3,6 @@
*/
export const commitinfo = {
name: '@serve.zone/remoteingress',
version: '4.6.0',
version: '4.6.1',
description: 'Edge ingress tunnel for DcRouter - accepts incoming TCP connections at network edge and tunnels them to DcRouter SmartProxy preserving client IP via PROXY protocol v1.'
}