Store nothing is history is not enable.

glances/__init__.py

@@ -19,7 +19,7 @@ import tracemalloc
 # Global name
 # Version should start and end with a numerical char
 # See https://packaging.python.org/specifications/core-metadata/#version
-__version__ = "4.4.0_dev5"
+__version__ = "4.4.0_dev6"
 __apiversion__ = '4'
 __author__ = 'Nicolas Hennion <nicolas@nicolargo.com>'
 __license__ = 'LGPLv3'
@@ -188,3 +188,4 @@ def main():
 
     # Glances can be ran in standalone, client or server mode
     start(config=core.get_config(), args=core.get_args())
+    start(config=core.get_config(), args=core.get_args())

glances/plugins/plugin/model.py

@@ -226,6 +226,9 @@ class GlancesPluginModel:
 
     def update_stats_history(self):
         """Update stats history."""
+        # Exit if no history
+        if not self.history_enable():
+            return
         # Build the history
         _get_export = self.get_export()
         if not (_get_export and self.history_enable()):