title: How to add jdbc drivers to classpath when using PySpark?
body: <p>How / where do I install the jdbc drivers for spark sql? I'm running the <a href="https://hub.docker.com/r/jupyter/all-spark-notebook/" rel="noreferrer">all-spark-notebook</a> docker image, and am trying to pull some data directly from a sql database into spark.</p>
  
  <p>From what I can tell I can tell I need to include the drivers in my <code>Classpath</code>, I'm just not sure how to do that from <code>pyspark</code>?</p>
  
  <pre><code>from pyspark.sql import SparkSession
  spark = SparkSession \
      .builder \
      .master("local") \
      .appName("Python Spark SQL basic example") \
      .getOrCreate()
  
  jdbcDF = spark.read \
      .format("jdbc") \
      .option("url", "jdbc:postgresql:dbserver") \
      .option("dbtable", "jdbc:postgresql:dbserver") \
      .load()
  
  ---------------------------------------------------------------------------
  Py4JJavaError                             Traceback (most recent call last)
  &lt;ipython-input-2-f3b08ff6d117&gt; in &lt;module&gt;()
        2 spark = SparkSession     .builder     .master("local")     .appName("Python Spark SQL basic example")     .getOrCreate()
        3 
  ----&gt; 4 jdbcDF = spark.read     .format("jdbc")     .option("url", "jdbc:postgresql:dbserver")     .option("dbtable", "jdbc:postgresql:dbserver")     .load()
  
  /usr/local/spark/python/pyspark/sql/readwriter.py in load(self, path, format, schema, **options)
      163             return self._df(self._jreader.load(self._spark._sc._jvm.PythonUtils.toSeq(path)))
      164         else:
  --&gt; 165             return self._df(self._jreader.load())
      166 
      167     @since(1.4)
  
  /usr/local/spark/python/lib/py4j-0.10.4-src.zip/py4j/java_gateway.py in __call__(self, *args)
     1131         answer = self.gateway_client.send_command(command)
     1132         return_value = get_return_value(
  -&gt; 1133             answer, self.gateway_client, self.target_id, self.name)
     1134 
     1135         for temp_arg in temp_args:
  
  /usr/local/spark/python/pyspark/sql/utils.py in deco(*a, **kw)
       61     def deco(*a, **kw):
       62         try:
  ---&gt; 63             return f(*a, **kw)
       64         except py4j.protocol.Py4JJavaError as e:
       65             s = e.java_exception.toString()
  
  /usr/local/spark/python/lib/py4j-0.10.4-src.zip/py4j/protocol.py in get_return_value(answer, gateway_client, target_id, name)
      317                 raise Py4JJavaError(
      318                     "An error occurred while calling {0}{1}{2}.\n".
  --&gt; 319                     format(target_id, ".", name), value)
      320             else:
      321                 raise Py4JError(
  
  Py4JJavaError: An error occurred while calling o36.load.
  : java.sql.SQLException: No suitable driver
      at java.sql.DriverManager.getDriver(DriverManager.java:315)
      at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions$$anonfun$7.apply(JDBCOptions.scala:84)
      at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions$$anonfun$7.apply(JDBCOptions.scala:84)
      at scala.Option.getOrElse(Option.scala:121)
      at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions.&lt;init&gt;(JDBCOptions.scala:83)
      at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions.&lt;init&gt;(JDBCOptions.scala:34)
      at org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:32)
      at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:306)
      at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:178)
      at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:146)
      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:280)
      at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
      at py4j.commands.CallCommand.execute(CallCommand.java:79)
      at py4j.GatewayConnection.run(GatewayConnection.java:214)
      at java.lang.Thread.run(Thread.java:748)
  </code></pre>