Spark-Cassandra Connector : Failed to open native connection to Cassandra

Question

I am new to Spark and Cassandra. On trying to submit a spark job, I am getting an error while connecting to Cassandra.

Details:

Versions:

Spa         


        

Answer 1

you did not specified spark.cassandra.connection.host by default spark assume that cassandra host is same as spark master node.

var sc:SparkContext=_
val conf = new SparkConf().setAppName("Cassandra Demo").setMaster(master)
.set("spark.cassandra.connection.host", "192.168.101.11")
c=new SparkContext(conf)

val rdd = sc.cassandraTable("test", "words")
rdd.toArray.foreach(println)

it should work if you have properly set seed nodein cassandra.yaml