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https://issues.apache.org/jira/browse/SPARK-32925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17198856#comment-17198856
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Hyukjin Kwon edited comment on SPARK-32925 at 9/20/20, 1:53 AM:
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cc [~mridulm80]] FYI
was (Author: hyukjin.kwon):
cc [~mridul] FYI
> 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
> Priority: Major
>
> 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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