X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/f16505d89d60d3bd5abc04762712f4ddf78e39fe..cb47df6cc327a59efaa16170f840c2745162bc86:/services/nodemanager/doc/ec2.example.cfg

diff --git a/services/nodemanager/doc/ec2.example.cfg b/services/nodemanager/doc/ec2.example.cfg
index 5c882e5a1e..d5bed57b95 100644
--- a/services/nodemanager/doc/ec2.example.cfg
+++ b/services/nodemanager/doc/ec2.example.cfg
@@ -1,14 +1,27 @@
 # EC2 configuration for Arvados Node Manager.
 # All times are in seconds unless specified otherwise.
 
+[Manage]
+# The management server responds to http://addr:port/status.json with
+# a snapshot of internal state.
+
+# Management server listening address (default 127.0.0.1)
+#address = 0.0.0.0
+
+# Management server port number (default -1, server is disabled)
+#port = 8989
+
 [Daemon]
 # The dispatcher can customize the start and stop procedure for
 # cloud nodes.  For example, the SLURM dispatcher drains nodes
 # 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
@@ -48,6 +61,12 @@ boot_fail_after = 1800
 # an Arvados node that hasn't been updated for this long.
 node_stale_after = 14400
 
+# 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.
+# If not set, this value will be set to 0.95
+node_mem_scaling = 0.95
+
 # File path for Certificate Authorities
 certs_file = /etc/ssl/certs/ca-certificates.crt