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https://issues.apache.org/jira/browse/KUDU-3056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17045572#comment-17045572
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caiconghui commented on KUDU-3056:
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[~granthenke] Thanks, I will test it.
> kudu-spark HdrHistogramAccumulator is too big, and make spark job failed
> --------------------------------------------------------------------------
>
> Key: KUDU-3056
> URL: https://issues.apache.org/jira/browse/KUDU-3056
> Project: Kudu
> Issue Type: Bug
> Components: spark
> Affects Versions: 1.9.0
> Reporter: caiconghui
> Assignee: Grant Henke
> Priority: Major
> Fix For: 1.12.0
>
> Attachments: heap1.png, heap2.png, heap3.png
>
> Original Estimate: 12h
> Remaining Estimate: 12h
>
> in production envrinment, we use kudu-spark to read kudu table, but even we
> don't use the
> HdrHistogramAccumulator, the HdrHistogramAccumulator stored in an array is
> stiil so big,
> totoal of them are almost 2 MB, so that when the number of kudu-spark
> task(for read kudu data and shuffle) is more than 900, the spark job failed,
> and the follwing error occured,
>
> Job aborted due to stage failure: Total size of serialized results of 1413
> tasks (3.0 GB) is bigger than spark.driver.maxResultSize (3.0 GB)
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