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https://issues.apache.org/jira/browse/SPARK-4049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15838649#comment-15838649
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Sean Owen commented on SPARK-4049:
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Data can be cached in multiple locations, so it makes some sense to indicate,
for example, that data that is meant to be 2x cached is 200% cached when all
partitions are replicated twice.
Imagine you have 2 partitions, each to be replicated twice. How do you report,
in one number, that one partition is 2x replicated and the other is not cached
at all? right now it would say 100%, as far as I can tell. That's ambiguous,
but, one number necessarily is.
> Storage web UI "fraction cached" shows as > 100%
> ------------------------------------------------
>
> Key: SPARK-4049
> URL: https://issues.apache.org/jira/browse/SPARK-4049
> Project: Spark
> Issue Type: Bug
> Components: Web UI
> Affects Versions: 1.2.0
> Reporter: Josh Rosen
> Priority: Minor
>
> In the Storage tab of the Spark Web UI, I saw a case where the "Fraction
> Cached" was greater than 100%:
> !http://i.imgur.com/Gm2hEeL.png!
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