diff --git a/kiri-engine/Pool/Pool.php b/kiri-engine/Pool/Pool.php
index a26e676c..10decdcc 100644
--- a/kiri-engine/Pool/Pool.php
+++ b/kiri-engine/Pool/Pool.php
@@ -64,6 +64,7 @@ class Pool extends Component
 				$connection->stopHeartbeatCheck();
 			}
 		}
+		$this->logger->warning('channel status', $channel->stats());
 	}
 
 
diff --git a/kiri-engine/Pool/SplQueue.php b/kiri-engine/Pool/SplQueue.php
index c7410d1c..1c4e390f 100644
--- a/kiri-engine/Pool/SplQueue.php
+++ b/kiri-engine/Pool/SplQueue.php
@@ -72,7 +72,11 @@ class SplQueue implements QueueInterface
 	public function stats(): array
 	{
 		// TODO: Implement stats() method.
-		return [];
+		return [
+			'consumer_num' => 0,
+			'producer_num' => 0,
+			'queue_num'    => $this->length()
+		];
 	}