[NFVBENCH-89] Fix exception losing original tracebacks

Change-Id: I7e94d6209603c622fc0a0ea22fdd21ea09f1bbaa
Signed-off-by: ahothan <ahothan@cisco.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/nfvbench/chain_managers.py b/nfvbench/chain_managers.py
index ab340bf..211f9bb 100644
--- a/nfvbench/chain_managers.py
+++ b/nfvbench/chain_managers.py
@@ -90,11 +90,11 @@ class PVPStatsManager(object):
         try:
             self.worker.set_vlans(self.vlans)
             self._config_interfaces()
-        except Exception as exc:
+        except Exception:
             # since the wrorker is up and running, we need to close it
             # in case of exception
             self.close()
-            raise exc
+            raise
 
     def _get_data(self):
         return self.worker.get_data() if self.worker else {}