nil checking

weed/mq/kafka/integration/broker_client_subscribe.go

@@ -442,6 +442,15 @@ func (bc *BrokerClient) ReadRecords(ctx context.Context, session *BrokerSubscrib
 
 	// Try to receive first record
 	go func() {
+		// Check if stream is nil (can happen during session recreation race condition)
+		if session.Stream == nil {
+			select {
+			case recvChan <- recvResult{resp: nil, err: fmt.Errorf("stream is nil")}:
+			case <-ctx.Done():
+				// Context cancelled, don't send (avoid blocking)
+			}
+			return
+		}
 		resp, err := session.Stream.Recv()
 		select {
 		case recvChan <- recvResult{resp: resp, err: err}:
@@ -501,6 +510,15 @@ func (bc *BrokerClient) ReadRecords(ctx context.Context, session *BrokerSubscrib
 		recvChan2 := make(chan recvResult, 1)
 
 		go func() {
+			// Check if stream is nil (can happen during session recreation race condition)
+			if session.Stream == nil {
+				select {
+				case recvChan2 <- recvResult{resp: nil, err: fmt.Errorf("stream is nil")}:
+				case <-ctx2.Done():
+					// Context cancelled
+				}
+				return
+			}
 			resp, err := session.Stream.Recv()
 			select {
 			case recvChan2 <- recvResult{resp: resp, err: err}: