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Posted to issues@spark.apache.org by "Pat McDonough (JIRA)" <ji...@apache.org> on 2014/09/18 02:46:34 UTC
[jira] [Updated] (SPARK-3580) Add Consistent Method To Get Number
of RDD Partitions Across Differnet Languages
[ https://issues.apache.org/jira/browse/SPARK-3580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pat McDonough updated SPARK-3580:
---------------------------------
Summary: Add Consistent Method To Get Number of RDD Partitions Across Differnet Languages (was: Add Consistent Method For Number of RDD Partitions Across Differnet Languages)
> Add Consistent Method To Get Number of RDD Partitions Across Differnet Languages
> --------------------------------------------------------------------------------
>
> Key: SPARK-3580
> URL: https://issues.apache.org/jira/browse/SPARK-3580
> Project: Spark
> Issue Type: Improvement
> Components: PySpark, Spark Core
> Affects Versions: 1.1.0
> Reporter: Pat McDonough
>
> Programmatically retrieving the number of partitions is not consistent between python and scala. A consistent method should be defined and made public across both languages.
> RDD.partitions.size is also used quite frequently throughout the internal code, so that might be worth refactoring as well once the new method is available.
> What we have today is below.
> In Scala:
> {code}
> scala> someRDD.partitions.size
> res0: Int = 30
> {code}
> In Python:
> {code}
> In [2]: someRDD.getNumPartitions()
> Out[2]: 30
> {code}
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