fix(server): shed overloaded group websocket fanout

2026-10-07 21:23:22 +08:00
parent 58c15efad5
commit ac6cd3c6e8
4 changed files with 57 additions and 2 deletions
@@ -2068,7 +2068,15 @@ func (t *Topic) broadcastToSessions(msg *ServerComMessage) {
 				sharedPayloadReady = true
 			}
 			if sharedPayload != nil {
-				if sess.queueOutSharedBytes(sharedPayload) {
+				if msg.Data != nil {
+					queued, skipped := sess.queueOutLossySharedBytes(sharedPayload)
+					if skipped {
+						immetrics.IncTopicBroadcastDrop(kind, role, "ws_backpressure")
+					}
+					if queued {
+						continue
+					}
+				} else if sess.queueOutSharedBytes(sharedPayload) {
 					continue
 				}
 				immetrics.IncTopicSharedSerialization(kind, "full")