DB2 Connection with Pyspark local - apache-spark

Question

I am trying to connect to db2 via pyspark, below is my connection string.
from pyspark import SparkConf, SparkContext, SQLContext
conf = SparkConf().setAppName("test").setMaster("local").set("spark.jars","\IBM\IBM_DATA_SERVER_DRIVER\java\db2jcc4.jar")
sc = SparkContext(conf=conf)
sqlContext = SQLContext(sc)
df = (sqlContext.read.format('jdbc')\
.option('url', 'jdbc:db2://********.COM:*****/*****')\
.option('driver', 'com.ibm.db2.jcc.DB2Driver')\
.option('dbtable', "(SELECT * FROM table.table limit 100) as t")\
.option('user', 'user')\
.option('password', 'password')).load()
However, I am getting an error as below
Py4JJavaError: An error occurred while calling o161.load.
: java.lang.ClassNotFoundException: com.ibm.db2.jcc.DB2Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at org.apache.spark.sql.execution.datasources.jdbc.DriverRegistry$.register(DriverRegistry.scala:45)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions$$anonfun$5.apply(JDBCOptions.scala:99)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions$$anonfun$5.apply(JDBCOptions.scala:99)
at scala.Option.foreach(Option.scala:257)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions.<init>(JDBCOptions.scala:99)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions.<init>(JDBCOptions.scala:35)
at org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:32)
at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:332)
at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:242)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:230)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:186)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
at py4j.Gateway.invoke(Gateway.java:282)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.GatewayConnection.run(GatewayConnection.java:238)
at java.lang.Thread.run(Thread.java:748)
I have downloaded latest driver and have it specified.
Could you help me resolve this issue to connect to db2 via pyspark.

Answer 1

Try not specifying the driver. Putting the jar file for db2 in $SPARK_HOME/jars should be enough.
Also use SparkSession to read input files. SQLContext is deprecated.