Corda: how drain node works for scheduled states

Question

I am going through corda docs about draining nodes and following line from it makes me suspicious

Scheduled flows due will be ignored.

Does it mean that in draining mode, scheduled flows wil not run, but once the node is drained, upgraded and undrained - will they start again?

How would it work if during upgrade some states/flows were upgraded?

Answer 1

If draining mode is enabled on the node, scheduled flows are suspended. The flows would resume once draining mode has been disabled i.e. any flow whose scheduled time falls in the past once the draining is disabled would start to execute.