Is it possible to instantiate multiple ray heads when using the CLI? ray start does let me specify a port for the head node but ray stop doesn’t seem to have any arguments to specify which ray instance I want to stop. I guess when using Python API (ray.init()) this is somehow handled automatically? …

It isn’t recommended to run multiple head nodes on a single machine, but if you really need to, I think you could use kill -9 to directly kill a specific GCS server process. You can use pgrep gcs_server to find these instances, and if you kill one, the associated Ray node should also clean itself up…

Multiple ray heads (on one machine) from CLI

Ray Core

davidxia July 10, 2024, 12:17pm 3

@mil.ad to start multiple ray heads with ray CLI, see Error in `ray job submit` on local machine if multiple clusters are running at the same time - #17 by davidxia

1 Like

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Multiple ray heads (on one machine) from CLI

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