Yes... I know... but.... The cluster is not administered by me On Mié., Ago. 9, 2017 at 13:46, Gourav Sengupta wrote: Hi,
Just out of sheer curiosity - why are you using SPARK 1.6? Since then SPARK has made significant advancement and improvement, why not take advantage of that? Regards, Gourav On Wed, Aug 9, 2017 at 10:41 AM, toletum wrote: Thanks Matteo I fixed it Regards, JCS On Mié., Ago. 9, 2017 at 11:22, Matteo Cossu wrote: Hello, try to use these options when starting Spark: --conf "spark.driver.userClassPathFirst=true" --conf "spark.executor.userClassPathFirst=true" In this way you will be sure that the executor and the driver of Spark will use the classpath you define. Best Regards, Matteo Cossu On 5 August 2017 at 23:04, toletum wrote: Hi everybody I'm trying to connect Spark to Hive. Hive uses Derby Server for metastore_db. $SPARK_HOME/conf/hive-site.xml javax.jdo.option.ConnectionURL jdbc:derby://derby:1527/metastore_db;create=true JDBC connect string for a JDBC metastore javax.jdo.option.ConnectionDriverName org.apache.derby.jdbc.ClientDriver Driver class name for a JDBC metastore I have copied to $SPARK_HOME/lib derby.jar, derbyclient.jar, derbytools.jar Added to CLASSPATH the 3 jars too $SPARK_HOMElib/derby.jar:$SPARK_HOME/lib/derbytools.jar:$SPARK_HOME/lib/derbyclient.jar But spark-sql saids: org.datanucleus.store.rdbms.co (http://org.datanucleus.store.rdbms.co)nnectionpool.DatastoreDriverNotFoundException: The specified datastore driver ("org.apache.derby.jdbc.ClientDriver") was not found in the CLASSPATH. Please check your CLASSPATH specification, and the name of the driver. java finds the class java org.apache.derby.jdbc.ClientDriver Error: Main method not found in class org.apache.derby.jdbc.ClientDriver, please define the main method as: public static void main(String[] args) or a JavaFX application class must extend javafx.application.Application It seems Spark can't find the driver
