# an Arvados node that hasn't been updated for this long.
node_stale_after = 14400
+# Number of consecutive times a node must report as "idle" before it
+# will be considered eligible for shutdown. Node status is checked
+# each poll period, and node can go idle at any point during a poll
+# period (meaning a node could be reported as idle that has only been
+# idle for 1 second). With a 60 second poll period, three consecutive
+# status updates of "idle" suggests the node has been idle at least
+# 121 seconds.
+consecutive_idle_count = 3
+
# Scaling factor to be applied to nodes' available RAM size. Usually there's a
# variable discrepancy between the advertised RAM value on cloud nodes and the
# actual amount available.
# size class (since libcloud does not provide any consistent API for exposing
# this setting).
# You may also want to define the amount of scratch space (expressed
-# in GB) for Crunch jobs. You can also override Amazon's provided
+# in MB) for Crunch jobs. You can also override Amazon's provided
# data fields (such as price per hour) by setting them here.
+#
+# Additionally, you can ask for a preemptible instance (AWS's spot instance)
+# by adding the appropriate boolean configuration flag. If you want to have
+# both spot & reserved versions of the same size, you can do so by renaming
+# the Size section and specifying the instance type inside it.
+# 100 GB scratch space
[Size m4.large]
cores = 2
price = 0.126
-scratch = 100
+scratch = 100000
+
+# 10 GB scratch space
+[Size m4.large.spot]
+instance_type = m4.large
+preemptible = true
+cores = 2
+price = 0.126
+scratch = 10000
+# 200 GB scratch space
[Size m4.xlarge]
cores = 4
price = 0.252
-scratch = 100
+scratch = 200000