What exactly happens when I do a “ray up” on an existing cluster?
Does it re-launch the nodes? restarts the workers with a new configuration? what happens to the currently working jobs? etc.
I couldn’t find this stated clearly in the documentation.
What exactly happens when I do a “ray up” on an existing cluster?
Does it re-launch the nodes? restarts the workers with a new configuration? what happens to the currently working jobs? etc.
I couldn’t find this stated clearly in the documentation.
Hey @Yoav,
ray up YAML
on an existing cluster essentially does the following:
The ray start commands
tend to run a ray stop + ray start
, so this will kill currently working jobs.
You can do ray up --no-restart YAML
to avoid running ray stop/ray start on the head node.
You can do ray up --restart-only YAML
to skip the setup commands and only run ray stop/ray start on all nodes.
Hope that helps!