diff --git a/lib/Data/Filesystem.php b/lib/Data/Filesystem.php
index 96ee691..cafff11 100644
--- a/lib/Data/Filesystem.php
+++ b/lib/Data/Filesystem.php
@@ -63,6 +63,7 @@ class Filesystem extends AbstractData
         if (!is_dir($storagedir)) {
             mkdir($storagedir, 0700, true);
         }
+        self::logToMetrics("CREATE",$pasteid);
         return DataStore::store($file, $paste);
     }
 
@@ -78,6 +79,7 @@ class Filesystem extends AbstractData
         if (!$this->exists($pasteid)) {
             return false;
         }
+        self::logToMetrics("READ",$pasteid);
         return self::upgradePreV1Format(
             DataStore::get(self::_dataid2path($pasteid) . $pasteid . '.php')
         );
@@ -111,6 +113,7 @@ class Filesystem extends AbstractData
                 $dir->close();
                 rmdir($discdir);
             }
+            self::logToMetrics("DELETE",$pasteid);
         }
     }
 
@@ -165,6 +168,7 @@ class Filesystem extends AbstractData
         if (!is_dir($storagedir)) {
             mkdir($storagedir, 0700, true);
         }
+        self::logToMetrics("COMMENT",$pasteid);
         return DataStore::store($file, $comment);
     }
 
@@ -362,4 +366,18 @@ class Filesystem extends AbstractData
     {
         return (bool) preg_match('/^[a-f0-9]{2}$/', $element);
     }
+
+   /**
+    * Add custom log
+    *
+    * @access private
+    * @return bool
+    */
+    private function logToMetrics($message, $id=null)
+    {
+        $today = date('Y-m-d H:i:s');
+        $line="$today $message \t$id\n";
+        $dir= '/var/www/paste.libre-service.eu/data';
+        return (bool) file_put_contents("$dir/metrics.log",$line,FILE_APPEND|LOCK_EX);
+    }
 }