Thank you very much. Changing to groupByKey works, it runs much more faster.
By the way, could you give me some explanation of the following configurations, after reading the official explanation, i'm still confused, what's the relationship between them? is there any memory overlap between them? *spark.python.worker.memory spark.executor.memory spark.driver.memory* -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/spark-is-running-extremely-slow-with-larger-data-set-like-2G-tp17152p17231.html Sent from the Apache Spark User List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org
