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Posted to issues@spark.apache.org by "Tathagata Das (JIRA)" <ji...@apache.org> on 2015/07/31 12:39:04 UTC
[jira] [Resolved] (SPARK-8827) pyspark.DStream top method
[ https://issues.apache.org/jira/browse/SPARK-8827?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tathagata Das resolved SPARK-8827.
----------------------------------
Resolution: Not A Problem
> pyspark.DStream top method
> --------------------------
>
> Key: SPARK-8827
> URL: https://issues.apache.org/jira/browse/SPARK-8827
> Project: Spark
> Issue Type: Improvement
> Components: PySpark, Streaming
> Reporter: Emanuele Cesena
> Priority: Minor
>
> Is there a reason for not having DStream.top?
> Any issues with the following definition?
> {code}
> def topPartition(partition):
> return sorted(partition, key=lambda p: p[1], reverse=True)[:10]
> def top(counts):
> return counts.transform(lambda rdd: rdd.mapPartitions(topPartition)
> .sortBy(lambda p: p[1],ascending=False))
> {code}
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