diff --git a/beat/core/dbexecution.py b/beat/core/dbexecution.py
old mode 100644
new mode 100755
index 5f13a7efcf101cc5a068702d0a1ecd5845ab95ca..ff73ae41eaba4be5b16993262bf3ee113beaa974
--- a/beat/core/dbexecution.py
+++ b/beat/core/dbexecution.py
@@ -47,7 +47,7 @@ from . import inputs
 from . import outputs
 from . import data
 from . import stats
-from . import agent
+from .message_handler import MessageHandler
 
 
 class DBExecutor(object):
@@ -259,7 +259,7 @@ class DBExecutor(object):
 
     def process(self, zmq_context, zmq_socket):
 
-        self.handler = agent.MessageHandler(self.input_list, zmq_context, zmq_socket)
+        self.handler = MessageHandler(self.input_list, zmq_context, zmq_socket)
         self.handler.start()
 
 
diff --git a/beat/core/scripts/worker.py b/beat/core/scripts/worker.py
index 770786dd2da2e081de4e5503fb6561bb24e3eb65..f2b1656d1a4b8b1fa288007e02b7f5d80b89c62f 100755
--- a/beat/core/scripts/worker.py
+++ b/beat/core/scripts/worker.py
@@ -234,6 +234,8 @@ def main(user_input=None):
 
         break
 
+    logger.info("The scheduler answered")
+
 
     # Process the requests
     execution_processes = []
@@ -328,7 +330,7 @@ def main(user_input=None):
             job_id = parts[1]
 
             try:
-                execution_process = [ p for p in execution_processes if p.job_id == job_id ]
+                execution_process = [ p for p in execution_processes if p.job_id == job_id ][0]
             except:
                 socket.send_multipart([
                     WorkerController.ERROR,
diff --git a/beat/core/test/prefix/experiments/user/user/double/1/cxx_double.json b/beat/core/test/prefix/experiments/user/user/double/1/cxx_double.json
index bb12429ae0c513b42b0ff456adb4433380fe4ac4..b055f4714777555707bbba24f8cee262adcbe7c9 100644
--- a/beat/core/test/prefix/experiments/user/user/double/1/cxx_double.json
+++ b/beat/core/test/prefix/experiments/user/user/double/1/cxx_double.json
@@ -46,7 +46,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/double/1/double.json b/beat/core/test/prefix/experiments/user/user/double/1/double.json
index ecbde7e0490333cc39b6fef520304ed98ef438a2..4820a823fad7ed6528abbbcf672e840696998cca 100644
--- a/beat/core/test/prefix/experiments/user/user/double/1/double.json
+++ b/beat/core/test/prefix/experiments/user/user/double/1/double.json
@@ -38,7 +38,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/double/1/large.json b/beat/core/test/prefix/experiments/user/user/double/1/large.json
index ea20697e4fcc7f092fe2f7a7888bd2f1279864b3..5275b0a7273be2b904540065ead1d0de2d514bbb 100644
--- a/beat/core/test/prefix/experiments/user/user/double/1/large.json
+++ b/beat/core/test/prefix/experiments/user/user/double/1/large.json
@@ -38,7 +38,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/double/1/large2.json b/beat/core/test/prefix/experiments/user/user/double/1/large2.json
index ade7e4e6360e7b8b04ed4723c2d494a6f0049c2f..4f9b7e4f5916708189e477e98fd94d87a6484b90 100644
--- a/beat/core/test/prefix/experiments/user/user/double/1/large2.json
+++ b/beat/core/test/prefix/experiments/user/user/double/1/large2.json
@@ -38,7 +38,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/double_triangle/1/double_triangle.json b/beat/core/test/prefix/experiments/user/user/double_triangle/1/double_triangle.json
index c903417027c9d701ebd8e9430609ee0f47149370..607ba54d790f1ab47b66ed3ccea74f7c3385f836 100644
--- a/beat/core/test/prefix/experiments/user/user/double_triangle/1/double_triangle.json
+++ b/beat/core/test/prefix/experiments/user/user/double_triangle/1/double_triangle.json
@@ -71,7 +71,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/inputs_mix/1/test.json b/beat/core/test/prefix/experiments/user/user/inputs_mix/1/test.json
index f770f4002c7c6aa3a265efe15f237dc33be28753..f02b8ca009f16ae4fb4ada2e397f1f87aff1f91b 100644
--- a/beat/core/test/prefix/experiments/user/user/inputs_mix/1/test.json
+++ b/beat/core/test/prefix/experiments/user/user/inputs_mix/1/test.json
@@ -44,7 +44,7 @@
     "globals": {
         "environment": {
             "name": "Python 2.7",
-            "version": "1.1.0"
+            "version": "1.2.0"
         },
         "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/inputs_mix/2/test.json b/beat/core/test/prefix/experiments/user/user/inputs_mix/2/test.json
index 832aa2a115dfe757c8b075ab25d76af87cca7b9b..202e35d0b7bc7f36aa477cd013d5e41ae699d14a 100644
--- a/beat/core/test/prefix/experiments/user/user/inputs_mix/2/test.json
+++ b/beat/core/test/prefix/experiments/user/user/inputs_mix/2/test.json
@@ -49,7 +49,7 @@
     "globals": {
         "environment": {
             "name": "Python 2.7",
-            "version": "1.1.0"
+            "version": "1.2.0"
         },
         "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/inputs_mix/3/test.json b/beat/core/test/prefix/experiments/user/user/inputs_mix/3/test.json
index e24864d741ab4278b351d628685a90e480783606..a145dee3ef98224ad924cc0874ef450f087f61c9 100644
--- a/beat/core/test/prefix/experiments/user/user/inputs_mix/3/test.json
+++ b/beat/core/test/prefix/experiments/user/user/inputs_mix/3/test.json
@@ -50,7 +50,7 @@
     "globals": {
         "environment": {
             "name": "Python 2.7",
-            "version": "1.1.0"
+            "version": "1.2.0"
         },
         "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/inputs_mix/3/test2.json b/beat/core/test/prefix/experiments/user/user/inputs_mix/3/test2.json
index 8add54bebce8aa1c83f6d6ab7ef90568bc58d330..ee50c17fdc36bb8a9c58ffde75a1093ae05587ab 100644
--- a/beat/core/test/prefix/experiments/user/user/inputs_mix/3/test2.json
+++ b/beat/core/test/prefix/experiments/user/user/inputs_mix/3/test2.json
@@ -50,7 +50,7 @@
     "globals": {
         "environment": {
             "name": "Python 2.7",
-            "version": "1.1.0"
+            "version": "1.2.0"
         },
         "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/inputs_mix/4/test.json b/beat/core/test/prefix/experiments/user/user/inputs_mix/4/test.json
index ed505bd6b7a1e2760c5afb2f1671440ff4d21cba..0dab39d49b8a4bd1918151fe33ef97e0191f07ac 100644
--- a/beat/core/test/prefix/experiments/user/user/inputs_mix/4/test.json
+++ b/beat/core/test/prefix/experiments/user/user/inputs_mix/4/test.json
@@ -62,7 +62,7 @@
     "globals": {
         "environment": {
             "name": "Python 2.7",
-            "version": "1.1.0"
+            "version": "1.2.0"
         },
         "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/inputs_mix/4/test2.json b/beat/core/test/prefix/experiments/user/user/inputs_mix/4/test2.json
index 397cb65c85bdc484c7b362d5f77707cdd8456a31..8a67503a051e0937c00cd9aaa0a5e3eaa9b263e1 100644
--- a/beat/core/test/prefix/experiments/user/user/inputs_mix/4/test2.json
+++ b/beat/core/test/prefix/experiments/user/user/inputs_mix/4/test2.json
@@ -62,7 +62,7 @@
     "globals": {
         "environment": {
             "name": "Python 2.7",
-            "version": "1.1.0"
+            "version": "1.2.0"
         },
         "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/integers_addition/1/integers_addition.json b/beat/core/test/prefix/experiments/user/user/integers_addition/1/integers_addition.json
index a707f223ef82d2bf12492c6edffd9e06043a64fb..cdd49190f34733f1efa780bfd7cbca32b6eea1b5 100644
--- a/beat/core/test/prefix/experiments/user/user/integers_addition/1/integers_addition.json
+++ b/beat/core/test/prefix/experiments/user/user/integers_addition/1/integers_addition.json
@@ -35,7 +35,7 @@
     "globals": {
       "environment": {
         "name": "Python 2.7",
-        "version": "1.1.0"
+        "version": "1.2.0"
       },
       "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/integers_addition/2/integers_addition.json b/beat/core/test/prefix/experiments/user/user/integers_addition/2/integers_addition.json
index 16c5be38ecbde35b49024cd97097feed508d832a..dc92e5e2973c600399e94b8e010c298936b94608 100644
--- a/beat/core/test/prefix/experiments/user/user/integers_addition/2/integers_addition.json
+++ b/beat/core/test/prefix/experiments/user/user/integers_addition/2/integers_addition.json
@@ -45,7 +45,7 @@
     "globals": {
       "environment": {
         "name": "Python 2.7",
-        "version": "1.1.0"
+        "version": "1.2.0"
       },
       "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/integers_addition/3/integers_addition.json b/beat/core/test/prefix/experiments/user/user/integers_addition/3/integers_addition.json
index da67fb632e99d77b6361f955bbc35d02b3962d5e..5e3c6a96bd46c3acf3091e1f9449adb0aac63863 100644
--- a/beat/core/test/prefix/experiments/user/user/integers_addition/3/integers_addition.json
+++ b/beat/core/test/prefix/experiments/user/user/integers_addition/3/integers_addition.json
@@ -62,7 +62,7 @@
     "globals": {
       "environment": {
         "name": "Python 2.7",
-        "version": "1.1.0"
+        "version": "1.2.0"
       },
       "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/integers_echo/1/integers_echo.json b/beat/core/test/prefix/experiments/user/user/integers_echo/1/integers_echo.json
index 5714d3481e8e2bf200aac005f1a5395e5723e8fa..5695c82f7724c9c7552326edbce3166928346f7b 100644
--- a/beat/core/test/prefix/experiments/user/user/integers_echo/1/integers_echo.json
+++ b/beat/core/test/prefix/experiments/user/user/integers_echo/1/integers_echo.json
@@ -22,7 +22,7 @@
     "globals": {
       "environment": {
         "name": "Python 2.7",
-        "version": "1.1.0"
+        "version": "1.2.0"
       },
       "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/integers_labelled/1/test.json b/beat/core/test/prefix/experiments/user/user/integers_labelled/1/test.json
index 6720d3e7460d12e129c547a557f29bbe0133a46b..521ea8a6e0e5cbf7400ccdfa68b0693f7ef2c154 100644
--- a/beat/core/test/prefix/experiments/user/user/integers_labelled/1/test.json
+++ b/beat/core/test/prefix/experiments/user/user/integers_labelled/1/test.json
@@ -33,7 +33,7 @@
     "globals": {
         "environment": {
             "name": "Python 2.7",
-            "version": "1.1.0"
+            "version": "1.2.0"
         },
         "queue": "queue"
     }
diff --git a/beat/core/test/prefix/experiments/user/user/single/1/single.json b/beat/core/test/prefix/experiments/user/user/single/1/single.json
index 6071986ecbeb433d9c29dccb03b7e39e09128616..1e656e68222ca482927402a9a8e30579deec5f38 100644
--- a/beat/core/test/prefix/experiments/user/user/single/1/single.json
+++ b/beat/core/test/prefix/experiments/user/user/single/1/single.json
@@ -29,7 +29,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/single/1/single_add.json b/beat/core/test/prefix/experiments/user/user/single/1/single_add.json
index 5db0154e02087eb3d27d730a9b923bf01a6c5c70..2cc9cc5b72d1435a83cfe73f60cf1170162100a5 100644
--- a/beat/core/test/prefix/experiments/user/user/single/1/single_add.json
+++ b/beat/core/test/prefix/experiments/user/user/single/1/single_add.json
@@ -29,7 +29,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/single/1/single_add2.json b/beat/core/test/prefix/experiments/user/user/single/1/single_add2.json
index 23406907743fc79c4c58260f42100fcd187f5169..397400ef6edfc9a48c46993be31a4126aea267cf 100644
--- a/beat/core/test/prefix/experiments/user/user/single/1/single_add2.json
+++ b/beat/core/test/prefix/experiments/user/user/single/1/single_add2.json
@@ -29,7 +29,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     },
     "user/integers_add/1": {
       "offset": 2
diff --git a/beat/core/test/prefix/experiments/user/user/single/1/single_crash.json b/beat/core/test/prefix/experiments/user/user/single/1/single_crash.json
index c393dc9be65f4d2c1dcabfcd00d9dce564de3d54..7c066751ec8a551c3fddfae5918bd855454396b0 100644
--- a/beat/core/test/prefix/experiments/user/user/single/1/single_crash.json
+++ b/beat/core/test/prefix/experiments/user/user/single/1/single_crash.json
@@ -29,7 +29,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/single/1/single_db_crash_done.json b/beat/core/test/prefix/experiments/user/user/single/1/single_db_crash_done.json
index bda651df86f71e689243a70cf2319a1c30325f17..903a8d884ae3a9625d79a728d4042557035853bd 100644
--- a/beat/core/test/prefix/experiments/user/user/single/1/single_db_crash_done.json
+++ b/beat/core/test/prefix/experiments/user/user/single/1/single_db_crash_done.json
@@ -29,7 +29,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/single/1/single_db_crash_next.json b/beat/core/test/prefix/experiments/user/user/single/1/single_db_crash_next.json
index dc52640d60c66d9605a01a07d39290cbc818efab..a636df633457d6d176ea1f30f8213d787fe0c98a 100644
--- a/beat/core/test/prefix/experiments/user/user/single/1/single_db_crash_next.json
+++ b/beat/core/test/prefix/experiments/user/user/single/1/single_db_crash_next.json
@@ -29,7 +29,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/single/1/single_error.json b/beat/core/test/prefix/experiments/user/user/single/1/single_error.json
index bd0ef6b3532f02ed79e79933b14eef23d81f4069..e8007e8ec932826cbcd898c5f82b541619636a78 100644
--- a/beat/core/test/prefix/experiments/user/user/single/1/single_error.json
+++ b/beat/core/test/prefix/experiments/user/user/single/1/single_error.json
@@ -29,7 +29,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/single/1/single_error2.json b/beat/core/test/prefix/experiments/user/user/single/1/single_error2.json
index bd0ef6b3532f02ed79e79933b14eef23d81f4069..e8007e8ec932826cbcd898c5f82b541619636a78 100644
--- a/beat/core/test/prefix/experiments/user/user/single/1/single_error2.json
+++ b/beat/core/test/prefix/experiments/user/user/single/1/single_error2.json
@@ -29,7 +29,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/single/1/single_large.json b/beat/core/test/prefix/experiments/user/user/single/1/single_large.json
index 898dc168561e7a1e552cd7f634adfbc9aaa3b87a..7fbdaad66a726a86e7104aecd243258d78943b40 100644
--- a/beat/core/test/prefix/experiments/user/user/single/1/single_large.json
+++ b/beat/core/test/prefix/experiments/user/user/single/1/single_large.json
@@ -34,7 +34,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/triangle/1/too_many_nexts.json b/beat/core/test/prefix/experiments/user/user/triangle/1/too_many_nexts.json
index 0aaa325fcc63a8b16e647cd62f8689b7d16cb634..b75fc76ba5e0cd6a595b86922b65eca283464d56 100644
--- a/beat/core/test/prefix/experiments/user/user/triangle/1/too_many_nexts.json
+++ b/beat/core/test/prefix/experiments/user/user/triangle/1/too_many_nexts.json
@@ -53,7 +53,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/prefix/experiments/user/user/triangle/1/triangle.json b/beat/core/test/prefix/experiments/user/user/triangle/1/triangle.json
index 99f283d07603bd07d97c878d244084cf6faf3220..608c4882641d68b100ff65c86a7cebada9f1c181 100644
--- a/beat/core/test/prefix/experiments/user/user/triangle/1/triangle.json
+++ b/beat/core/test/prefix/experiments/user/user/triangle/1/triangle.json
@@ -53,7 +53,7 @@
     "queue": "queue",
     "environment": {
       "name": "Python 2.7",
-      "version": "1.1.0"
+      "version": "1.2.0"
     }
   }
 }
diff --git a/beat/core/test/test_dbexecution.py b/beat/core/test/test_dbexecution.py
index 4542db175e414804cfb706e2f6a45426a1a308ef..c2a3198597f727191bc8fdc9e16a8923ef71d592 100644
--- a/beat/core/test/test_dbexecution.py
+++ b/beat/core/test/test_dbexecution.py
@@ -80,7 +80,7 @@ CONFIGURATION = {
   'parameters': {},
   'environment': {
     'name': 'Python 2.7',
-    'version': '1.1.0'
+    'version': '1.2.0'
   },
   'outputs': {
     'sum': {
diff --git a/beat/core/test/test_message_handler.py b/beat/core/test/test_message_handler.py
index 0b7eb024c85c1cbcbc93c63fdc2c3eea54bec0cf..7ec49cddf603d586f706c2eeb09b00b876c6f8ef 100644
--- a/beat/core/test/test_message_handler.py
+++ b/beat/core/test/test_message_handler.py
@@ -45,7 +45,7 @@ import unittest
 import zmq
 import nose.tools
 
-from ..agent import MessageHandler
+from ..message_handler import MessageHandler
 from ..dataformat import DataFormat
 from ..inputs import RemoteInput
 from ..inputs import RemoteException
diff --git a/beat/core/test/test_worker.py b/beat/core/test/test_worker.py
index 408f056957f756e3f97d899a4a3c8b6a08aff4c7..e5b73e58dcaa9d39e7043f8580c621c400b7adb5 100644
--- a/beat/core/test/test_worker.py
+++ b/beat/core/test/test_worker.py
@@ -73,7 +73,7 @@ CONFIGURATION1 = {
   'parameters': {},
   'environment': {
     'name': 'Python 2.7',
-    'version': '1.1.0'
+    'version': '1.2.0'
   },
   'outputs': {
     'out_data': {
@@ -109,7 +109,7 @@ CONFIGURATION2 = {
   'parameters': {},
   'environment': {
     'name': 'Python 2.7',
-    'version': '1.1.0'
+    'version': '1.2.0'
   },
   'outputs': {
     'out_data': {
@@ -173,6 +173,7 @@ class TestOneWorker(unittest.TestCase):
           '--prefix=%s' % prefix,
           '--cache=%s' % tmp_prefix,
           '--name=%s' % WORKER1,
+          # '-vvv',
           self.controller.address,
         ]
 
@@ -253,7 +254,7 @@ class TestOneWorker(unittest.TestCase):
         (worker, status, job_id, data) = self._wait()
 
         self.assertEqual(worker, WORKER1)
-        self.assertEqual(status, WorkerController.DONE)
+        self.assertEqual(status, WorkerController.JOB_ERROR)
         self.assertEqual(job_id, 1)
 
         result = simplejson.loads(data[0])
@@ -305,24 +306,19 @@ class TestOneWorker(unittest.TestCase):
         self.assertTrue(did_shutdown)
 
 
-    def test_error_busy(self):
+    def test_multiple_jobs(self):
         config = dict(CONFIGURATION1)
         config['algorithm'] = 'user/integers_echo_slow/1'
 
-        self.controller.execute(WORKER1, 1, config)
+        self.controller.execute(WORKER1, 1, CONFIGURATION1)
         self.controller.execute(WORKER1, 2, config)
 
-        (worker, status, job_id, data) = self._wait()
-
-        self.assertEqual(worker, WORKER1)
-        self.assertEqual(status, WorkerController.JOB_ERROR)
-        self.assertEqual(job_id, 2)
-        self.assertEqual(data[0], 'Worker is already busy')
-
         message = self._wait()
-
         self._check_done(message, WORKER1, 1)
 
+        message = self._wait()
+        self._check_done(message, WORKER1, 2)
+
 
     def test_reuse(self):
         self.controller.execute(WORKER1, 1, CONFIGURATION1)
@@ -357,7 +353,7 @@ class TestOneWorker(unittest.TestCase):
         self.assertEqual(worker, WORKER1)
         self.assertEqual(status, WorkerController.ERROR)
         self.assertTrue(job_id is None)
-        self.assertEqual(data[0], "Worker isn't busy")
+        self.assertEqual(data[0], "Unknown job: 1")
 
 
 #----------------------------------------------------------
diff --git a/beat/core/worker.py b/beat/core/worker.py
index 2e85379d242b28a9322ab8ff88d787df28435163..3b44ab448bb37db847403ccba79e687ec895e76f 100755
--- a/beat/core/worker.py
+++ b/beat/core/worker.py
@@ -96,8 +96,8 @@ class WorkerController(object):
     def cancel(self, worker, job_id):
         self.socket.send_multipart([
           str(worker),
-          str(job_id),
-          WorkerController.CANCEL
+          WorkerController.CANCEL,
+          str(job_id)
         ])