Hi,
I'm having issues to create a StreamingContext with Scala using spark-shell. It
tries to access the localhost interface and the Application Master is not
running on this interface :
ERROR ApplicationMaster: Failed to connect to driver at localhost:47257,
retrying ...
I don't have the issue with Python and pyspark which works fine (you can see it
uses the ip address) :
ApplicationMaster: Driver now available: 192.168.10.100:43290
I use similar codes though :
test.scala :
--------------
import org.apache.spark._
import org.apache.spark.streaming._
val app = "test-scala"
val conf = new SparkConf().setAppName(app).setMaster("yarn-client")
val ssc = new StreamingContext(conf, Seconds(3))
command used : spark-shell -i test.scala
test.py :
-----------
from pyspark import SparkConf, SparkContext
from pyspark.streaming import StreamingContext
app = "test-python"
conf = SparkConf().setAppName(app).setMaster("yarn-client")
sc = SparkContext(conf=conf)
ssc = StreamingContext(sc, 3)
command used : pyspark test.py
Any idea why scala can't instantiate it ? I thought python was barely using
scala under the hood, but it seems there are differences. Are there any
parameters set using Scala but not Python ?
Thanks
--
Cyril SCETBON
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