I took that RDD run through it and printed 4 elements from it, they all
printed correctly.
val x = viEvents.map {
case (itemId, event) =>
println(event.get("guid"), itemId, event.get("itemId"),
event.get("siteId"))
(itemId, event)
}
The above code prints
(27c9fbc014b4f61526f0574001b73b00,261197590161,261197590161,3)
(27c9fbc014b4f61526f0574001b73b00,261197590161,261197590161,3)
(27c9fbc014b4f61526f0574001b73b00,261197590161,261197590161,3)
(340da8c014a46272c0c8c830011c3bf0,221733319941,221733319941,77)
(340da8c014a46272c0c8c830011c3bf0,181704048554,181704048554,77)
(340da8c014a46272c0c8c830011c3bf0,231524481696,231524481696,77)
(340da8c014a46272c0c8c830011c3bf0,271830464992,271830464992,77)
(393938d71480a2aaf8e440d1fff709f4,141586046141,141586046141,0)
(3a792a7c14c0a35882346c04fff4e236,161605492016,161605492016,0)
(3a792a7c14c0a35882346c04fff4e236,161605492016,161605492016,0)
viEvents.collect.foreach(a => println(a._2.get("guid"), a._1,
a._2.get("itemId"), a._2.get("siteId")))
*Now, i collected it, this might have lead to serialization of the RDD.*
Now when i print the same 4 elements, *i only get guid values for all. Has
this got something to do with serialization ?*
(27c9fbc014b4f61526f0574001b73b00,261197590161,27c9fbc014b4f61526f0574001b73b00,27c9fbc014b4f61526f0574001b73b00)
(27c9fbc014b4f61526f0574001b73b00,261197590161,27c9fbc014b4f61526f0574001b73b00,27c9fbc014b4f61526f0574001b73b00)
(27c9fbc014b4f61526f0574001b73b00,261197590161,27c9fbc014b4f61526f0574001b73b00,27c9fbc014b4f61526f0574001b73b00)
(340da8c014a46272c0c8c830011c3bf0,221733319941,340da8c014a46272c0c8c830011c3bf0,340da8c014a46272c0c8c830011c3bf0)
(340da8c014a46272c0c8c830011c3bf0,181704048554,340da8c014a46272c0c8c830011c3bf0,340da8c014a46272c0c8c830011c3bf0)
(340da8c014a46272c0c8c830011c3bf0,231524481696,340da8c014a46272c0c8c830011c3bf0,340da8c014a46272c0c8c830011c3bf0)
(340da8c014a46272c0c8c830011c3bf0,271830464992,340da8c014a46272c0c8c830011c3bf0,340da8c014a46272c0c8c830011c3bf0)
(393938d71480a2aaf8e440d1fff709f4,141586046141,393938d71480a2aaf8e440d1fff709f4,393938d71480a2aaf8e440d1fff709f4)
(3a792a7c14c0a35882346c04fff4e236,161605492016,3a792a7c14c0a35882346c04fff4e236,3a792a7c14c0a35882346c04fff4e236)
(3a792a7c14c0a35882346c04fff4e236,161605492016,3a792a7c14c0a35882346c04fff4e236,3a792a7c14c0a35882346c04fff4e236)
The RDD is of type org.apache.spark.rdd.RDD[(Long,
com.ebay.ep.poc.spark.reporting.process.detail.model.DetailInputRecord)]
At the time of context creation i did this
val conf = new SparkConf()
.setAppName(detail)
.set("spark.serializer", "org.apache.spark.serializer.*KryoSerializer*
")
.set("spark.kryoserializer.buffer.mb",
arguments.get("buffersize").get)
.set("spark.kryoserializer.buffer.max.mb",
arguments.get("maxbuffersize").get)
.set("spark.driver.maxResultSize", arguments.get("maxResultSize").get)
.set("spark.yarn.maxAppAttempts", "1")
.registerKryoClasses(Array(classOf[com.ebay.ep.poc.spark.reporting.process.model.dw.SpsLevelMetricSum],
classOf[com.ebay.ep.poc.spark.reporting.process.detail.model.DetailInputRecord],
classOf[com.ebay.ep.poc.spark.reporting.process.detail.model.InputRecord],
classOf[com.ebay.ep.poc.spark.reporting.process.model.SessionRecord],
classOf[com.ebay.ep.poc.spark.reporting.process.model.DataRecord],
classOf[com.ebay.ep.poc.spark.reporting.process.model.ExperimentationRecord]))
The class heirarchy is
DetailInputRecord extends InputRecord extends SessionRecord extends
ExperimentationRecord extends
org.apache.avro.generic.GenericRecord.Record(schema: Schema)
Please suggest.
On Sat, Apr 11, 2015 at 4:50 PM, ÐΞ€ρ@Ҝ (๏̯͡๏) <deepuj...@gmail.com> wrote:
> I have two RDD
>
> leftRDD = RDD[(Long, (DetailInputRecord, VISummary, Long))]
> and
> rightRDD =
> RDD[(Long, com.ebay.ep.poc.spark.reporting.process.model.dw.SpsLevelMetricSum)
>
> DetailInputRecord is a object that contains (guid, sessionKey,
> sessionStartDAte, siteID)
>
> There are 10 records in leftRDD (confirmed with leftRDD.count, and each of
> DetailInputRecord record in leftRDD has data within its members)
>
> I do leftRDD.leftOuterJoin(rightRDD)
>
> viEventsWithListings = leftRDD
> spsLvlMetric = rightRDD
>
> val viEventsWithListingsJoinSpsLevelMetric =
> viEventsWithListings.leftOuterJoin(spsLvlMetric).map {
> case (viJoinSpsLevelMetric) => {
> val (sellerId, ((viEventDetail, viSummary, itemId), spsLvlMetric))
> = viJoinSpsLevelMetric
>
> println("sellerId:" + sellerId)
> println("sessionKey:" + viEventDetail.get("sessionKey"))
> println("guid:" + viEventDetail.get("guid"))
> println("sessionStartDate:" +
> viEventDetail.get("sessionStartDate"))
> println("siteId:" + viEventDetail.get("siteId"))
>
> if (spsLvlMetric.isDefined) {
>
> // do something
>
> }
> }
>
> I print each of the items within the DetailInputRecord (viEventDetail) of
> viEventsWithListings before and within leftOuterJoin. Before leftOuterJoin
> i get values of each member within record (total 10 records).
>
> Within join when i do the print i get only guid as value for all members.
> How is this possible ?
>
> Within join: (print statements. These are guids)
> sessionKey:27c9fbc014b4f61526f0574001b73b00
> guid:27c9fbc014b4f61526f0574001b73b00
> sessionStartDate:27c9fbc014b4f61526f0574001b73b00
> siteId:27c9fbc014b4f61526f0574001b73b00
>
> What went wrong, i have debugged multiple times but fail to understand the
> reason.
> Appreciate your help
> --
> Deepak
>
>
--
Deepak
