pyspark datastax cassandra connector keeps connecting to localhost

Question

I am trying to connect pyspark to cassandra using datastax driver

 conf = SparkConf()
.setAppName('Test') 
.setMaster('local[4]') 
.set("spark.cassandra.connection.host", "192.168.0.150") 
sc = SparkContext(conf=conf)
sqlContext = SQLContext(sc)

df = sqlContext.read.format("org.apache.spark.sql.cassandra").
options(table="test", keyspace="test_keyspace").load()

For some reason it keeps connecting to 127.0.0.1:9042 instead of 192.168.0.150

Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All  
host(s) tried for query 
failed (tried: localhost/127.0.0.1:9042  
(com.datastax.driver.core.exceptions.TransportException: 
[localhost/127.0.0.1] Cannot connect))

I am using spark 2.10 and running program as below

spark-submit --packages datastax:spark-cassan
dra-connector:2.0.0-RC1-s_2.11 test.py

Asked By: Abhishek

||

Source

Answer 1

Figure out the issue in Spark 2.10 cassandra configuration is set as option in SqlContext.
code below works

sqlContext.read.format("org.apache.spark.sql.cassandra").
option("spark.cassandra.connection.host", "192.168.0.150").
option("spark.cassandra.auth.username", "user"). 
option("spark.cassandra.auth.password", "password"). 
options(table="test_table", keyspace="test_space").load()

Answered By: Abhishek

pyspark datastax cassandra connector keeps connecting to localhost

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