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https://issues.apache.org/jira/browse/SPARK-10816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16647923#comment-16647923
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Jungtaek Lim commented on SPARK-10816:
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Btw, I've just rebuilt with Baidu's updated patch and reran benchmark: the
benchmark result is not dramatically changed. While it now shows 140~150
processed rows per second, it still fails to keep input rate 1000. I guess the
outstanding performance drop may not be from shuffle (though it could
contribute), but from UnsafeExternalSorter.
> EventTime based sessionization
> ------------------------------
>
> Key: SPARK-10816
> URL: https://issues.apache.org/jira/browse/SPARK-10816
> Project: Spark
> Issue Type: New Feature
> Components: Structured Streaming
> Reporter: Reynold Xin
> Priority: Major
> Attachments: SPARK-10816 Support session window natively.pdf, Session
> Window Support For Structure Streaming.pdf
>
>
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