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Posted to issues@spark.apache.org by "Matei Zaharia (JIRA)" <ji...@apache.org> on 2014/06/05 10:17:01 UTC

[jira] [Updated] (SPARK-2032) Add an RDD.samplePartitions method for partition-level sampling

     [ https://issues.apache.org/jira/browse/SPARK-2032?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matei Zaharia updated SPARK-2032:
---------------------------------

    Priority: Minor  (was: Major)

> Add an RDD.samplePartitions method for partition-level sampling
> ---------------------------------------------------------------
>
>                 Key: SPARK-2032
>                 URL: https://issues.apache.org/jira/browse/SPARK-2032
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>            Reporter: Matei Zaharia
>            Priority: Minor
>
> This would allow us to sample a percent of the partitions and not have to materialize all of them. It's less uniform but much faster and may be useful for quickly exploring data.



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