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Apache Spark commented on SPARK-5954: ------------------------------------- User 'coderxiang' has created a pull request for this issue: https://github.com/apache/spark/pull/5075 > Add topByKey to pair RDDs > ------------------------- > > Key: SPARK-5954 > URL: https://issues.apache.org/jira/browse/SPARK-5954 > Project: Spark > Issue Type: New Feature > Components: Spark Core > Reporter: Xiangrui Meng > Assignee: Shuo Xiang > > `topByKey(num: Int): RDD[(K, V)]` finds the top-k values for each key in a > pair RDD. This is used, e.g., in computing top recommendations. We can use > the Guava implementation of finding top-k from an iterator. See also > https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/util/collection/Utils.scala. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org