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https://issues.apache.org/jira/browse/SPARK-2630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071407#comment-14071407
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Davies Liu commented on SPARK-2630:
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[~tsudukim], it make sense, I had change the title.
> Input data size of CoalescedRDD is incorrect
> --------------------------------------------
>
> Key: SPARK-2630
> URL: https://issues.apache.org/jira/browse/SPARK-2630
> Project: Spark
> Issue Type: Bug
> Components: Spark Core, Web UI
> Affects Versions: 1.0.0, 1.0.1
> Reporter: Davies Liu
> Priority: Critical
> Attachments: overflow.tiff
>
>
> Given one big file, such as text.4.3G, put it in one task,
> sc.textFile("text.4.3.G").coalesce(1).count()
> In Web UI of Spark, you will see that the input size is 5.4M.
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