fix small bugs
diff --git a/rally_runner.py b/rally_runner.py
index 093ae12..90051fb 100644
--- a/rally_runner.py
+++ b/rally_runner.py
@@ -2,6 +2,7 @@
 import json
 import time
 import yaml
+import logging
 import warnings
 import functools
 import contextlib
@@ -14,10 +15,12 @@
 from rally.benchmark.scenarios.vm.vmtasks import VMTasks
 
 import itest
-from log import log
 from utils import get_barrier, wait_on_barrier
 
 
+log = logging.getLogger("io-perf-tool").debug
+
+
 @contextlib.contextmanager
 def patch_VMTasks_boot_runcommand_delete():
 
diff --git a/requirements.txt b/requirements.txt
index 3651bfb..7f8254f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,4 +9,7 @@
 wsgiref==0.1.2
 requests==2.2.1
 python-keystoneclient==1.1.0
-GChartWrapper
+python-novaclient
+python-glanceclient
+paramiko
+
diff --git a/run_test.py b/run_test.py
index 2d0c224..ccab7aa 100644
--- a/run_test.py
+++ b/run_test.py
@@ -10,7 +10,6 @@
 
 import io_scenario
 from itest import IOPerfTest
-from log import setlogger
 
 import ssh_runner
 import rally_runner