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Posted to issues@spark.apache.org by "Shivaram Venkataraman (JIRA)" <ji...@apache.org> on 2017/01/13 18:10:26 UTC
[jira] [Resolved] (SPARK-18335) Add a numSlices parameter to
SparkR's createDataFrame
[ https://issues.apache.org/jira/browse/SPARK-18335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shivaram Venkataraman resolved SPARK-18335.
-------------------------------------------
Resolution: Fixed
Fix Version/s: 2.2.0
2.1.1
Issue resolved by pull request 16512
[https://github.com/apache/spark/pull/16512]
> Add a numSlices parameter to SparkR's createDataFrame
> -----------------------------------------------------
>
> Key: SPARK-18335
> URL: https://issues.apache.org/jira/browse/SPARK-18335
> Project: Spark
> Issue Type: Improvement
> Components: SparkR
> Reporter: Shixiong Zhu
> Fix For: 2.1.1, 2.2.0
>
>
> SparkR's createDataFrame doesn't have a `numSlices` parameter. The user cannot set a partition number when converting a large R dataframe to SparkR dataframe. A workaround is using `repartition`, but it requires a shuffle stage. It's better to support the `numSlices` parameter in the `createDataFrame` method.
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