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https://issues.apache.org/jira/browse/SPARK-18085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15603596#comment-15603596
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Marcelo Vanzin commented on SPARK-18085:
----------------------------------------

Finally, I actually wrote some code for the first two milestones described in 
the document, to show what this could look like. The code is at:
https://github.com/vanzin/spark/tree/shs-ng/M2
https://github.com/vanzin/spark/tree/shs-ng/M1

(M2 actually has all the changes in M1, this is just to follow the 
implementation path described in the document.)

> Scalability enhancements for the History Server
> -----------------------------------------------
>
>                 Key: SPARK-18085
>                 URL: https://issues.apache.org/jira/browse/SPARK-18085
>             Project: Spark
>          Issue Type: Umbrella
>          Components: Spark Core, Web UI
>    Affects Versions: 2.0.0
>            Reporter: Marcelo Vanzin
>         Attachments: spark_hs_next_gen.pdf
>
>
> It's a known fact that the History Server currently has some annoying issues 
> when serving lots of applications, and when serving large applications.
> I'm filing this umbrella to track work related to addressing those issues. 
> I'll be attaching a document shortly describing the issues and suggesting a 
> path to how to solve them.



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