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https://issues.apache.org/jira/browse/SPARK-15958?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-15958:
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Assignee: Apache Spark
> Make initial buffer size for the Sorter configurable
> ----------------------------------------------------
>
> Key: SPARK-15958
> URL: https://issues.apache.org/jira/browse/SPARK-15958
> Project: Spark
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Sital Kedia
> Assignee: Apache Spark
>
> Currently the initial buffer size in the sorter is hard coded inside the code
> (https://github.com/apache/spark/blob/master/sql/catalyst/src/main/java/org/apache/spark/sql/execution/UnsafeExternalRowSorter.java#L88)
> and is too small for large workload. As a result, the sorter spends
> significant time expanding the buffer size and copying the data. It would be
> useful to have it configurable.
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