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https://issues.apache.org/jira/browse/SPARK-5112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-5112.
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Resolution: Fixed
Fix Version/s: 1.4.0
1.5.0
Issue resolved by pull request 3913
[https://github.com/apache/spark/pull/3913]
> Expose SizeEstimator as a developer API
> ---------------------------------------
>
> Key: SPARK-5112
> URL: https://issues.apache.org/jira/browse/SPARK-5112
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
> Fix For: 1.5.0, 1.4.0
>
>
> "The best way to size the amount of memory consumption your dataset will
> require is to create an RDD, put it into cache, and look at the SparkContext
> logs on your driver program. The logs will tell you how much memory each
> partition is consuming, which you can aggregate to get the total size of the
> RDD."
> -the Tuning Spark page
> This is a pain. It would be much nicer to expose simply functionality for
> understanding the memory footprint of a Java object.
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