diff --git a/System/Crontab/Zookeeper.php b/System/Crontab/Zookeeper.php
index 08c7c444..d1c0f135 100644
--- a/System/Crontab/Zookeeper.php
+++ b/System/Crontab/Zookeeper.php
@@ -84,6 +84,7 @@ class Zookeeper extends Process
 
         $range = $redis->zRangeByScore(Producer::CRONTAB_KEY, '0', (string)$startTime);
         $redis->zRemRangeByScore(Producer::CRONTAB_KEY, '0', (string)$startTime);
+        var_dump($range);
 
         return [$range, $redis];
     }