handling cancelled request on timeout  for get stats
@@ -103,7 +103,11 @@ async def get_stats(req):
:return: data_read, data_sent, data_purged
"""
+ try:
res = await get_statistics(req)
+ except asyncio.CancelledError:
+ raise
+ else:
stats = json.loads(res.body.decode())
def filter_stat(k):
