[jira] [Created] (SPARK-32925) Support push-based shuffle in multiple deployment environments

["Min Shen (Jira)" <ji...@apache.org>]

Min Shen created SPARK-32925:
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             Summary: Support push-based shuffle in multiple deployment environments
                 Key: SPARK-32925
                 URL: https://issues.apache.org/jira/browse/SPARK-32925
             Project: Spark
          Issue Type: Improvement
          Components: Shuffle, Spark Core
    Affects Versions: 3.1.0
            Reporter: Min Shen


Create this ticket outside of SPARK-30602, since this is outside of the scope of the immediate deliverables in that SPIP. Want to use this ticket to discuss more about how to further improve push-based shuffle in different environments.

The tasks created under SPARK-30602 would enable push-based shuffle on YARN in a compute/storage colocated cluster. However, there are other deployment environments that are getting more popular these days. We have seen 2 as we discussed with other community members on the idea of push-based shuffle:
 * Spark on K8S in a compute/storage colocated cluster. Because of the limitation of concurrency of read/write of a mounted volume in K8S, multiple executor pods on the same node in a K8S cluster cannot concurrently access the same mounted disk volume. This creates some different requirements for supporting external shuffle service as well as push-based shuffle.
 * Spark on a compute/storage disaggregate cluster. Such a setup is more typical in cloud environments, where the compute cluster has little/no local storage, and the shuffle intermediate data needs to be stored in remote disaggregate storage cluster.

Want to use this ticket to discuss ways to support push-based shuffle in these different deployment environments.



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