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https://issues.apache.org/jira/browse/SPARK-56664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-56664:
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Labels: pull-request-available (was: )
> Add a new shuffle implementation to support Real-time Mode (RTM)
> ----------------------------------------------------------------
>
> Key: SPARK-56664
> URL: https://issues.apache.org/jira/browse/SPARK-56664
> Project: Spark
> Issue Type: Epic
> Components: Structured Streaming
> Affects Versions: 4.2.0
> Reporter: Boyang Jerry Peng
> Priority: Major
> Labels: pull-request-available
>
> The streaming shuffle is an alternative {{ShuffleManager}} implementation
> designed for low-latency, continuously-running queries (for example,
> real-time mode in Structured Streaming). Unlike the default sort-based
> shuffle, it does not materialize map outputs to disk and does not require map
> tasks to finish before reduce tasks can start. Instead, each map task hosts a
> network server that pushes records to reduce tasks as they are produced;
> reduce tasks open clients to those servers and consume records as a stream.
>
> Design doc:
>
> https://github.com/jerrypeng/spark/blob/1fe0abd72a317e8f73df1406966f8f49b24e8fd1/docs/streaming-shuffle.md
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