1bd897cbc4
### What changes were proposed in this pull request? This is one of the patches for SPIP SPARK-30602 which is needed for push-based shuffle. Summary of changes: This PR introduces a new RPC to be called within Driver. When the expected shuffle push wait time reaches, Driver will call this RPC to facilitate coordination of shuffle map/reduce stages and notify external shuffle services to finalize shuffle block merge for a given shuffle. Shuffle services also respond back the metadata about a merged shuffle partition back to the caller. ### Why are the changes needed? Refer to the SPIP in SPARK-30602. ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? This code snippets won't be called by any existing code and will be tested after the coordinated driver changes gets merged in SPARK-32920. Lead-authored-by: Min Shen mshenlinkedin.com Closes #30163 from zhouyejoe/SPARK-32918. Lead-authored-by: Ye Zhou <yezhou@linkedin.com> Co-authored-by: Min Shen <mshen@linkedin.com> Signed-off-by: Mridul Muralidharan <mridul<at>gmail.com> |
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