diff --git a/superset/assets/src/components/StackTraceMessage.jsx b/superset/assets/src/components/StackTraceMessage.jsx
index 71b0972c25580..9253108d28602 100644
--- a/superset/assets/src/components/StackTraceMessage.jsx
+++ b/superset/assets/src/components/StackTraceMessage.jsx
@@ -38,7 +38,13 @@ class StackTraceMessage extends React.PureComponent {
         >
           {this.props.message}
           {this.hasLink() &&
-          <a href={this.props.queryResponse.link}> (Request Access) </a>
+          <a
+            href={this.props.queryResponse.link}
+            target="_blank"
+            rel="noopener noreferrer"
+          >
+            (Request Access)
+          </a>
        }
         </Alert>
         {this.hasTrace() &&
diff --git a/superset/sql_lab.py b/superset/sql_lab.py
index 97dc32685c7a4..a8122478fa91f 100644
--- a/superset/sql_lab.py
+++ b/superset/sql_lab.py
@@ -120,14 +120,14 @@ def convert_results_to_df(cursor_description, data):
 @celery_app.task(bind=True, soft_time_limit=SQLLAB_TIMEOUT)
 def get_sql_results(
     ctask, query_id, rendered_query, return_results=True, store_results=False,
-        user_name=None):
+        user_name=None, start_time=None):
     """Executes the sql query returns the results."""
     with session_scope(not ctask.request.called_directly) as session:
 
         try:
             return execute_sql(
                 ctask, query_id, rendered_query, return_results, store_results, user_name,
-                session=session)
+                session=session, start_time=start_time)
         except Exception as e:
             logging.exception(e)
             stats_logger.incr('error_sqllab_unhandled')
@@ -141,10 +141,13 @@ def get_sql_results(
 
 def execute_sql(
     ctask, query_id, rendered_query, return_results=True, store_results=False,
-    user_name=None, session=None,
+    user_name=None, session=None, start_time=None,
 ):
     """Executes the sql query returns the results."""
-
+    if store_results and start_time:
+        # only asynchronous queries
+        stats_logger.timing(
+            'sqllab.query.time_pending', utils.now_as_float() - start_time)
     query = get_query(query_id, session)
     payload = dict(query_id=query_id)
 
@@ -215,11 +218,15 @@ def handle_error(msg):
         cursor = conn.cursor()
         logging.info('Running query: \n{}'.format(executed_sql))
         logging.info(query.executed_sql)
+        query_start_time = utils.now_as_float()
         db_engine_spec.execute(cursor, query.executed_sql, async=True)
         logging.info('Handling cursor')
         db_engine_spec.handle_cursor(cursor, query, session)
         logging.info('Fetching data: {}'.format(query.to_dict()))
         data = db_engine_spec.fetch_data(cursor, query.limit)
+        stats_logger.timing(
+            'sqllab.query.time_executing_query',
+            utils.now_as_float() - query_start_time)
     except SoftTimeLimitExceeded as e:
         logging.exception(e)
         if conn is not None:
@@ -269,14 +276,17 @@ def handle_error(msg):
     if store_results:
         key = '{}'.format(uuid.uuid4())
         logging.info('Storing results in results backend, key: {}'.format(key))
-        json_payload = json.dumps(payload, default=utils.json_iso_dttm_ser)
+        write_to_results_backend_start = utils.now_as_float()
+        json_payload = json.dumps(
+            payload, default=utils.json_iso_dttm_ser, ignore_nan=True)
         cache_timeout = database.cache_timeout
         if cache_timeout is None:
             cache_timeout = config.get('CACHE_DEFAULT_TIMEOUT', 0)
         results_backend.set(key, utils.zlib_compress(json_payload), cache_timeout)
         query.results_key = key
-        query.end_result_backend_time = utils.now_as_float()
-
+        stats_logger.timing(
+            'sqllab.query.results_backend_write',
+            utils.now_as_float() - write_to_results_backend_start)
     session.merge(query)
     session.commit()
 
diff --git a/superset/views/core.py b/superset/views/core.py
index 3a78dab8cbf4e..819fb9281682d 100755
--- a/superset/views/core.py
+++ b/superset/views/core.py
@@ -2367,7 +2367,12 @@ def results(self, key):
         if not results_backend:
             return json_error_response("Results backend isn't configured")
 
+        read_from_results_backend_start = utils.now_as_float()
         blob = results_backend.get(key)
+        stats_logger.timing(
+            'sqllab.query.results_backend_read',
+            utils.now_as_float() - read_from_results_backend_start,
+        )
         if not blob:
             return json_error_response(
                 'Data could not be retrieved. '
@@ -2483,7 +2488,8 @@ def sql_json(self):
                     rendered_query,
                     return_results=False,
                     store_results=not query.select_as_cta,
-                    user_name=g.user.username)
+                    user_name=g.user.username,
+                    start_time=utils.now_as_float())
             except Exception as e:
                 logging.exception(e)
                 msg = (