added time to log messages

devices/statistics_writer/statistics_writer.py

@@ -9,7 +9,7 @@ import sys
 import signal
 
 import logging
-logging.basicConfig(level=logging.INFO)
+logging.basicConfig(level=logging.INFO, format = '%(asctime)s:%(levelname)s: %(message)s')
 logger = logging.getLogger("statistics_writer")