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[Core] Fix node affinity strategy when resource is empty (#25344) #25362

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merged 2 commits into from
Jun 1, 2022

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@krfricke krfricke commented Jun 1, 2022

Why are these changes needed?
Today, Ray scheduler always pick a random node if the resource requirement is empty, regardless of scheduling policy/strategy.

However, for node affinity scheduling policy, we should not pick random policy but try to stick to the node affinity constraints.

Why are these changes needed?

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  • I've included any doc changes needed for https://docs.ray.io/en/master/.
  • I've made sure the tests are passing. Note that there might be a few flaky tests, see the recent failures at https://flakey-tests.ray.io/
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    • This PR is not tested :(

…#25344)

Why are these changes needed?
Today, Ray scheduler always pick a random node if the resource requirement is empty, regardless of scheduling policy/strategy.

However, for node affinity scheduling policy, we should not pick random policy but try to stick to the node affinity constraints.
@krfricke krfricke merged commit 75d013b into ray-project:releases/1.13.0 Jun 1, 2022
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3 participants