-The real price that a spot instance has at any point in time is discovered at the end of each usage hour, depending on instance demand. For this reason, AWS provides a data feed subscription to get hourly logs, as described on "Amazon's User Guide":https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-data-feeds.html.
\ No newline at end of file
+The real price that a spot instance has at any point in time is discovered at the end of each usage hour, depending on instance demand. For this reason, AWS provides a data feed subscription to get hourly logs, as described on "Amazon's User Guide":https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-data-feeds.html.
+
+h2(#nodemanager). Nodemanager
+
+If you are using the legacy Nodemanager, its config file must also declare preemptible instance sizes, which must match the API server's @InstanceTypes@:
+
+<pre>
+[Size m4.large]
+cores = 2
+scratch = 32000
+
+[Size m4.large.spot]
+cores = 2
+instance_type = m4.large
+preemptible = true
+scratch = 32000
+</pre>