diff --git a/kiri-engine/Pool/Pool.php b/kiri-engine/Pool/Pool.php
index 59c92fc4..fa33f5b9 100644
--- a/kiri-engine/Pool/Pool.php
+++ b/kiri-engine/Pool/Pool.php
@@ -65,15 +65,14 @@ class Pool extends Component
 	public function check($name): array
 	{
 		$channel = $this->channel($name);
-		var_dump($channel->length());
 		if ($channel->length() < 1) {
 			return [0, 0];
 		}
 
-		$count = $success = 0;
+		$success = 0;
 		$lists = [];
+		$count = $channel->length();
 		while (($pdo = $channel->pop()) instanceof PDO) {
-			$count += 1;
 			if ($pdo->check()) {
 				$success += 1;
 			}