I am trying to understand what the data and computation flow is in Spark, and believe I fairly understand the Shuffle (both map and reduce side), but I do not get what happens to the computation from the map stages. I know all maps gets pipelined on the shuffle (when there is no other action in between), but I can not find where the actual computation for the map happens (for instance for rdd.map(x => x+1), where does the +1 happen?). Any pointers to files or functions are appreciated.
I know compute of rdd/MapPartitionsRDD.scala gets called, but I loose track of the lambda function after this. Thanks, Tom -- View this message in context: http://apache-spark-developers-list.1001551.n3.nabble.com/What-is-the-location-in-the-source-code-of-the-computation-of-the-elements-in-a-map-transformation-tp11971.html Sent from the Apache Spark Developers List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@spark.apache.org For additional commands, e-mail: dev-h...@spark.apache.org
