Ray Webhook Support for Single-Host, Multi-Slice TPUs #453
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR adds support for single-host, multi-slice TPU worker groups, which require the
TPU_NAME
andTPU_WORKER_ID
env vars. Specifically, this PR changes the webhook to inject areplicaIndex
label for all Ray worker pods requesting TPUs (previously injected amultiHostReplica
label only for multi-host). Pods which are deleted and restart will be assigned the sameTPU_WORKER_ID
,TPU_NAME
, andreplicaIndex
. This PR was manually tested by creating single-host, single-slice, multi-host, and multi-slice RayClusters and ensuring that all environment variables were injected correctly, even after multiple Pod deletions.