title: Spark 2.1 - Error While instantiating HiveSessionState
body: <p>With a fresh install of Spark 2.1, I am getting an error when executing the pyspark command.</p>
  
  <pre><code>Traceback (most recent call last):
  File "/usr/local/spark/python/pyspark/shell.py", line 43, in &lt;module&gt;
  spark = SparkSession.builder\
  File "/usr/local/spark/python/pyspark/sql/session.py", line 179, in getOrCreate
  session._jsparkSession.sessionState().conf().setConfString(key, value)
  File "/usr/local/spark/python/lib/py4j-0.10.4-src.zip/py4j/java_gateway.py", line 1133, in __call__
  File "/usr/local/spark/python/pyspark/sql/utils.py", line 79, in deco
  raise IllegalArgumentException(s.split(': ', 1)[1], stackTrace)
  pyspark.sql.utils.IllegalArgumentException: u"Error while instantiating 'org.apache.spark.sql.hive.HiveSessionState':"
  </code></pre>
  
  <p>I have Hadoop and Hive on the same machine.  Hive is configured to use MySQL for the metastore.  I did not get this error with Spark 2.0.2.</p>
  
  <p>Can someone please point me in the right direction?</p>