docs: warn about running multiple local Ray instances #45836
Conversation
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cc @anyscalesam |
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@kevin85421 @jjyao is this OK to merge? |
| Running multiple local Ray instances is not supported and may have | ||
| undefined behavior. |
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Why is it not supposed? I think this is supported.
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Should this be "Running multiple local Ray instances is not recommended and may have undefined behavior." instead?
Even though it's possible to run multiple Ray instances on a single machine, is it not recommended? Both @anyscalesam here and @stephanie-wang in this other discussion thread have said it's not recommended. If it's not, I think it's helpful to state this?
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You can do it as long as you provide unique ports for each Ray instance.
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- Do you have an example Python snippet showing how to do this with
ray.init()? - I understand it's possible, but I'm asking if it's not recommended?
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@jjyao just bumping again on the above questions
…oject#45836)" This reverts commit 8f70e02.
See https://discuss.ray.io/t/error-in-ray-job-submit-on-local-machine-if-multiple-clusters-are-running-at-the-same-time/14723/7?u=davidxia
Why are these changes needed?
Will prevent user confusion
Related issue number
Checks
git commit -s) in this PR.scripts/format.shto lint the changes in this PR.method in Tune, I've added it in
doc/source/tune/api/under thecorresponding
.rstfile.