X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/efb77a42a055f7081a1ff1e2fa712089be71dcc0..c512f060057f497030df8266f680d55084c0e860:/services/nodemanager/doc/ec2.example.cfg

diff --git a/services/nodemanager/doc/ec2.example.cfg b/services/nodemanager/doc/ec2.example.cfg
index 9b41ca14d5..1c33bfd457 100644
--- a/services/nodemanager/doc/ec2.example.cfg
+++ b/services/nodemanager/doc/ec2.example.cfg
@@ -7,14 +7,22 @@
 # through SLURM before shutting them down.
 #dispatcher = slurm
 
-# Node Manager will ensure that there are at least this many nodes
-# running at all times.
+# Node Manager will ensure that there are at least this many nodes running at
+# all times.  If node manager needs to start new idle nodes for the purpose of
+# satisfying min_nodes, it will use the cheapest node type.  However, depending
+# on usage patterns, it may also satisfy min_nodes by keeping alive some
+# more-expensive nodes
 min_nodes = 0
 
 # Node Manager will not start any compute nodes when at least this
 # many are running.
 max_nodes = 8
 
+# Upper limit on rate of spending (in $/hr), will not boot additional nodes
+# if total price of already running nodes meets or exceeds this threshold.
+# default 0 means no limit.
+max_total_price = 0
+
 # Poll EC2 nodes and Arvados for new information every N seconds.
 poll_time = 60
 
@@ -123,16 +131,24 @@ subnet_id = idstring
 # compute node.
 security_groups = idstring1, idstring2
 
-[Size t2.medium]
+
 # You can define any number of Size sections to list EC2 sizes you're
 # willing to use.  The Node Manager should boot the cheapest size(s) that
-# can run jobs in the queue (N.B.: defining more than one size has not been
-# tested yet).
+# can run jobs in the queue.
+#
 # Each size section MUST define the number of cores are available in this
 # 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
-# data fields by setting the same names here.
+# data fields (such as price per hour) by setting them here.
+
+[Size m4.large]
 cores = 2
+price = 0.126
+scratch = 100
+
+[Size m4.xlarge]
+cores = 4
+price = 0.252
 scratch = 100