diff --git a/kiri-engine/Pool/Pool.php b/kiri-engine/Pool/Pool.php
index b7bc3f51..59c92fc4 100644
--- a/kiri-engine/Pool/Pool.php
+++ b/kiri-engine/Pool/Pool.php
@@ -65,6 +65,7 @@ class Pool extends Component
 	public function check($name): array
 	{
 		$channel = $this->channel($name);
+		var_dump($channel->length());
 		if ($channel->length() < 1) {
 			return [0, 0];
 		}