Adjust idle-culler settings

qhub/template/stages/07-kubernetes-services/modules/kubernetes/services/jupyterhub/files/04-idle-culler.py

@@ -5,24 +5,30 @@
 # Extra config available at:
 # https://zero-to-jupyterhub.readthedocs.io/en/1.x/jupyterhub/customizing/user-management.html#culling-user-pods
 
-# Shut down the server after N seconds with no kernels or terminals running and no activity.
-# c.NotebookApp.shutdown_no_activity_timeout = 400
+# Timeout (in seconds) in which a terminal has been inactive and ready to
+# be culled.
+c.TerminalManager.cull_inactive_timeout = 10 * 60
 
-c.TerminalManager.cull_inactive_timeout = 120
-c.TerminalManager.cull_interval = 60
+# The interval (in seconds) on which to check for terminals exceeding the
+# inactive timeout value.
+c.TerminalManager.cull_interval = 1 * 60
 
 # cull_idle_timeout: timeout (in seconds) after which an idle kernel is
 # considered ready to be culled
-c.MappingKernelManager.cull_idle_timeout = 3 * 60
+c.MappingKernelManager.cull_idle_timeout = 10 * 60
 
 # cull_interval: the interval (in seconds) on which to check for idle
 # kernels exceeding the cull timeout value
-c.MappingKernelManager.cull_interval = 90
+c.MappingKernelManager.cull_interval = 1 * 60
 
 # cull_connected: whether to consider culling kernels which have one
 # or more connections
 c.MappingKernelManager.cull_connected = True
 
 # cull_busy: whether to consider culling kernels which are currently
 # busy running some code
-c.MappingKernelManager.cull_busy = False
+c.MappingKernelManager.cull_busy = False
+
+# Shut down the server after N seconds with no kernels or terminals
+# running and no activity.
+c.ServerApp.shutdown_no_activity_timeout = 10 * 60

qhub/template/stages/07-kubernetes-services/modules/kubernetes/services/jupyterhub/values.yaml

@@ -65,7 +65,7 @@ cull:
   enabled: true
   users: false # --cull-users
   removeNamedServers: false # --remove-named-servers
-  timeout: 300 # --timeout 3600
-  every: 100 # --cull-every 600
+  timeout: 1800 # --timeout 3600
+  every: 600 # --cull-every 600
   concurrency: 10 # --concurrency
   maxAge: 0 # --max-age