Spark Streaming - Display the processed Streaming Result as Dataframe
import org.apache.spark.sql.SQLContext
import org.apache.spark.streaming.{Seconds,StreamingContext}
import org.apache.spark.{SparkConf,SparkContext}
object Streaming1{
def main(args:Array[String]):Unit = {
// Create a configuration object
val conf = new SparkConf()
conf.set("spark.master","local[2]")
conf.set("spark.app.name","streamingApp1")
conf.set("spark.streaming.blockInterval","1000ms")
//creation of spark context object
val sc = new SparkContext(conf)
//creation of sqlContext
val sqlContext = new SQLContext(sc)
import sqlContext.implicits._
// Creation of Streaming Context
val ssc = new StreamingContext(sc,Seconds(2))
//Receiver Port
val d1 = ssc.socketTextStream("localhost",3456)
// DStream (sequence of RDDs) into Dataframe
d1.foreachRDD { x =>
val df = x.toDF
df.show
}
ssc.start()
ssc.awaitTermination()
}
}
// start netcat and open port 3456
hadoop@hadoop:~/Desktop/vow$ nc -lk 3456
i love india
who is that guy
//start spark shell
$ spark-shell --master local[2]
//stop existing SparkContext
scala> sc.stop
//load spark (scala) file
scala> :load streamingDF.sc
// call the main method
scala> Streaming1.main(null)
// output
+---------------+
| value|
+---------------+
| i love india|
|who is that guy|
+---------------+
+-----+
|value|
+-----+
+-----+
+-----+
|value|
+-----+
+-----+
import org.apache.spark.streaming.{Seconds,StreamingContext}
import org.apache.spark.{SparkConf,SparkContext}
object Streaming1{
def main(args:Array[String]):Unit = {
// Create a configuration object
val conf = new SparkConf()
conf.set("spark.master","local[2]")
conf.set("spark.app.name","streamingApp1")
conf.set("spark.streaming.blockInterval","1000ms")
//creation of spark context object
val sc = new SparkContext(conf)
//creation of sqlContext
val sqlContext = new SQLContext(sc)
import sqlContext.implicits._
// Creation of Streaming Context
val ssc = new StreamingContext(sc,Seconds(2))
//Receiver Port
val d1 = ssc.socketTextStream("localhost",3456)
// DStream (sequence of RDDs) into Dataframe
d1.foreachRDD { x =>
val df = x.toDF
df.show
}
ssc.start()
ssc.awaitTermination()
}
}
// start netcat and open port 3456
hadoop@hadoop:~/Desktop/vow$ nc -lk 3456
i love india
who is that guy
//start spark shell
$ spark-shell --master local[2]
//stop existing SparkContext
scala> sc.stop
//load spark (scala) file
scala> :load streamingDF.sc
// call the main method
scala> Streaming1.main(null)
// output
+---------------+
| value|
+---------------+
| i love india|
|who is that guy|
+---------------+
+-----+
|value|
+-----+
+-----+
+-----+
|value|
+-----+
+-----+
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