Resolved 1684 - MON fails to collect metrics from an OpenStack VIM with metrics support if there is another OpenStack VIM without metrics support registered

Change-Id: I3a0a737292975b8cbdfb0b3cb5d4549e56679334
Signed-off-by: Atul Agarwal <Atul.Agarwal@Altran.com>
diff --git a/osm_mon/collector/service.py b/osm_mon/collector/service.py
index 005f844..132e9da 100644
--- a/osm_mon/collector/service.py
+++ b/osm_mon/collector/service.py
@@ -211,9 +211,9 @@
                         )
                         metrics.extend(result)
                         log.debug("result = %s" % (result))
-                    except keystoneauth1.exceptions.connection.ConnectTimeout as e:
-                        log.info("Keystone connection timeout during metric collection")
-                        log.debug("Keystone connection timeout exception %s" % (e))
+                    except keystoneauth1.exceptions.connection.ConnectionError as e:
+                        log.info("Keystone connection error during metric collection")
+                        log.debug("Keystone connection error exception %s" % (e))
             except concurrent.futures.TimeoutError as e:
                 # Some processes have not completed due to timeout error
                 log.info(