diff --git a/client/driver/driver_config.py b/client/driver/driver_config.py
index 017c944..8745359 100644
--- a/client/driver/driver_config.py
+++ b/client/driver/driver_config.py
@@ -93,7 +93,7 @@ DRIVER_HOME = os.path.dirname(os.path.realpath(__file__))
 RESULT_DIR = os.path.join(DRIVER_HOME, 'results')
 
 # Set this to add user defined metrics
-ENABLE_UDM = True
+ENABLE_UDM = False
 
 # Path to the User Defined Metrics (UDM), only required when ENABLE_UDM is True
 UDM_DIR = os.path.join(DRIVER_HOME, 'userDefinedMetrics')
diff --git a/client/driver/fabfile.py b/client/driver/fabfile.py
index 97e181c..5d54e26 100644
--- a/client/driver/fabfile.py
+++ b/client/driver/fabfile.py
@@ -599,6 +599,12 @@ def clean_logs():
     local('rm -f {} {}'.format(dconf.OLTPBENCH_LOG, dconf.CONTROLLER_LOG))
 
 
+@task
+def clean_oltpbench_results():
+    # remove oltpbench result files
+    local('rm -f {}/results/*'.format(dconf.OLTPBENCH_HOME))
+
+
 @task
 def loop(i):
     i = int(i)
@@ -642,6 +648,7 @@ def loop(i):
     # add user defined metrics
     if dconf.ENABLE_UDM is True:
         add_udm()
+        clean_oltpbench_results()
 
     # save result
     result_timestamp = save_dbms_result()
@@ -687,7 +694,6 @@ def run_loops(max_iter=10):
 
         # reload database periodically
         if dconf.RELOAD_INTERVAL > 0:
-            # wait 5 secs after restarting databases
             time.sleep(15)
             if i % dconf.RELOAD_INTERVAL == 0:
                 if i == 0 and dump is False:
diff --git a/client/driver/userDefinedMetrics/user_defined_metrics.py b/client/driver/userDefinedMetrics/user_defined_metrics.py
index 7f2eacc..b691ce7 100644
--- a/client/driver/userDefinedMetrics/user_defined_metrics.py
+++ b/client/driver/userDefinedMetrics/user_defined_metrics.py
@@ -4,8 +4,9 @@ import copy
 import argparse
 import os
 sys.path.append("../../../")
+sys.path.append("../")
 from server.website.website.types import VarType   # pylint: disable=import-error,wrong-import-position,line-too-long  # noqa: E402
-
+from driver_config import OLTPBENCH_HOME  # pylint: disable=import-error,wrong-import-position  # noqa: E402
 
 parser = argparse.ArgumentParser()  # pylint: disable=invalid-name
 parser.add_argument("result_dir")
@@ -37,7 +38,8 @@ USER_DEINFED_METRICS = {
 
 
 def get_udm():
-    with open('../oltpbench.summary', 'r') as f:
+    summary_path = OLTPBENCH_HOME + '/results/outputfile.summary'
+    with open(summary_path, 'r') as f:
         info = json.load(f)
     metrics = copy.deepcopy(USER_DEINFED_METRICS)
     if HAS_TARGET_OBJECTIVE is False: