I installed Spark 2.0.0, and was trying the ML example (IndexToString) on
this web
page:http://spark.apache.org/docs/latest/ml-features.html#onehotencoder,
using jupyter notebook (running Pyspark) to create a simple dataframe, and I
keep getting a long error message (see below). Pyspark has worked fine with
RDD, but anytime I try to do anything with DataFrame it keep throwing out
error messages. Any help would be appreciated, thanks!

*******************************************************************
Py4JJavaError: An error occurred while calling o23.applySchemaToPythonRDD.
: java.lang.RuntimeException: java.lang.RuntimeException: Unable to
instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
        at
org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:522)
        at
org.apache.spark.sql.hive.client.HiveClientImpl.<init>(HiveClientImpl.scala:171)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at
org.apache.spark.sql.hive.client.IsolatedClientLoader.createClient(IsolatedClientLoader.scala:258)
        at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:359)
        at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:263)
        at
org.apache.spark.sql.hive.HiveSharedState.metadataHive$lzycompute(HiveSharedState.scala:39)
        at
org.apache.spark.sql.hive.HiveSharedState.metadataHive(HiveSharedState.scala:38)
        at
org.apache.spark.sql.hive.HiveSharedState.externalCatalog$lzycompute(HiveSharedState.scala:46)
        at
org.apache.spark.sql.hive.HiveSharedState.externalCatalog(HiveSharedState.scala:45)
        at
org.apache.spark.sql.hive.HiveSessionState.catalog$lzycompute(HiveSessionState.scala:50)
        at
org.apache.spark.sql.hive.HiveSessionState.catalog(HiveSessionState.scala:48)
        at
org.apache.spark.sql.hive.HiveSessionState$$anon$1.<init>(HiveSessionState.scala:63)
        at
org.apache.spark.sql.hive.HiveSessionState.analyzer$lzycompute(HiveSessionState.scala:63)
        at
org.apache.spark.sql.hive.HiveSessionState.analyzer(HiveSessionState.scala:62)
        at
org.apache.spark.sql.execution.QueryExecution.assertAnalyzed(QueryExecution.scala:49)
        at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:64)
        at
org.apache.spark.sql.SparkSession.applySchemaToPythonRDD(SparkSession.scala:666)
        at
org.apache.spark.sql.SparkSession.applySchemaToPythonRDD(SparkSession.scala:656)
        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:237)
        at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
        at py4j.Gateway.invoke(Gateway.java:280)
        at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:128)
        at py4j.commands.CallCommand.execute(CallCommand.java:79)
        at py4j.GatewayConnection.run(GatewayConnection.java:211)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: Unable to instantiate
org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
        at
org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1523)
        at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:86)
        at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)
        at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)
        at
org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3005)
        at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3024)
        at
org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:503)
        ... 32 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at
org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1521)
        ... 38 more
Caused by: javax.jdo.JDOFatalDataStoreException: Unable to open a test
connection to the given database. JDBC url =
jdbc:derby:;databaseName=metastore_db;create=true, username = APP.
Terminating connection pool (set lazyInit to true if you expect to start
your database after your app). Original Exception: ------
java.sql.SQLException: Failed to start database 'metastore_db' with class
loader
org.apache.spark.sql.hive.client.IsolatedClientLoader$$anon$1@d187feb, see
the next exception for details.
        at 
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
        at 
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
        at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedConnection.bootDatabase(Unknown 
Source)
        at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
        at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown
Source)
        at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
        at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
        at org.apache.derby.jdbc.AutoloadedDriver.connect(Unknown Source)
        at java.sql.DriverManager.getConnection(DriverManager.java:664)
        at java.sql.DriverManager.getConnection(DriverManager.java:208)
        at com.jolbox.bonecp.BoneCP.obtainRawInternalConnection(BoneCP.java:361)
        at com.jolbox.bonecp.BoneCP.<init>(BoneCP.java:416)
        at
com.jolbox.bonecp.BoneCPDataSource.getConnection(BoneCPDataSource.java:120)
        at
org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getConnection(ConnectionFactoryImpl.java:501)
        at
org.datanucleus.store.rdbms.RDBMSStoreManager.<init>(RDBMSStoreManager.java:298)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at
org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:631)
        at
org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:301)
        at
org.datanucleus.NucleusContext.createStoreManagerForProperties(NucleusContext.java:1187)
        at org.datanucleus.NucleusContext.initialise(NucleusContext.java:356)
        at
org.datanucleus.api.jdo.JDOPersistenceManagerFactory.freezeConfiguration(JDOPersistenceManagerFactory.java:775)
        at
org.datanucleus.api.jdo.JDOPersistenceManagerFactory.createPersistenceManagerFactory(JDOPersistenceManagerFactory.java:333)
        at
org.datanucleus.api.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory(JDOPersistenceManagerFactory.java:202)
        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 javax.jdo.JDOHelper$16.run(JDOHelper.java:1965)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.jdo.JDOHelper.invoke(JDOHelper.java:1960)
        at
javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1166)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:808)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:701)
        at
org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:365)
        at
org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:394)
        at
org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:291)
        at
org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:258)
        at 
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:76)
        at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:136)
        at
org.apache.hadoop.hive.metastore.RawStoreProxy.<init>(RawStoreProxy.java:57)
        at
org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:66)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStore(HiveMetaStore.java:593)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:571)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:624)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:461)
        at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:66)
        at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:72)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:5762)
        at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:199)
        at
org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:74)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at
org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1521)
        at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:86)
        at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)
        at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)
        at
org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3005)
        at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3024)
        at
org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:503)
        at
org.apache.spark.sql.hive.client.HiveClientImpl.<init>(HiveClientImpl.scala:171)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at
org.apache.spark.sql.hive.client.IsolatedClientLoader.createClient(IsolatedClientLoader.scala:258)
        at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:359)
        at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:263)
        at
org.apache.spark.sql.hive.HiveSharedState.metadataHive$lzycompute(HiveSharedState.scala:39)
        at
org.apache.spark.sql.hive.HiveSharedState.metadataHive(HiveSharedState.scala:38)
        at
org.apache.spark.sql.hive.HiveSharedState.externalCatalog$lzycompute(HiveSharedState.scala:46)
        at
org.apache.spark.sql.hive.HiveSharedState.externalCatalog(HiveSharedState.scala:45)
        at
org.apache.spark.sql.hive.HiveSessionState.catalog$lzycompute(HiveSessionState.scala:50)
        at
org.apache.spark.sql.hive.HiveSessionState.catalog(HiveSessionState.scala:48)
        at
org.apache.spark.sql.hive.HiveSessionState$$anon$1.<init>(HiveSessionState.scala:63)
        at
org.apache.spark.sql.hive.HiveSessionState.analyzer$lzycompute(HiveSessionState.scala:63)
        at
org.apache.spark.sql.hive.HiveSessionState.analyzer(HiveSessionState.scala:62)
        at
org.apache.spark.sql.execution.QueryExecution.assertAnalyzed(QueryExecution.scala:49)
        at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:64)
        at
org.apache.spark.sql.SparkSession.applySchemaToPythonRDD(SparkSession.scala:666)
        at
org.apache.spark.sql.SparkSession.applySchemaToPythonRDD(SparkSession.scala:656)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:237)
        at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
        at py4j.Gateway.invoke(Gateway.java:280)
        at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:128)
        at py4j.commands.CallCommand.execute(CallCommand.java:79)
        at py4j.GatewayConnection.run(GatewayConnection.java:211)
        at java.lang.Thread.run(Thread.java:745)
Caused by: ERROR XJ040: Failed to start database 'metastore_db' with class
loader
org.apache.spark.sql.hive.client.IsolatedClientLoader$$anon$1@d187feb, see
the next exception for details.
        at org.apache.derby.iapi.error.StandardException.newException(Unknown
Source)
        at
org.apache.derby.impl.jdbc.SQLExceptionFactory.wrapArgsForTransportAcrossDRDA(Unknown
Source)
        ... 97 more
Caused by: ERROR XSDB6: Another instance of Derby may have already booted
the database C:\Sparkcourse\metastore_db.
        at org.apache.derby.iapi.error.StandardException.newException(Unknown
Source)
        at org.apache.derby.iapi.error.StandardException.newException(Unknown
Source)
        at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.privGetJBMSLockOnDB(Unknown
Source)
        at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.run(Unknown
Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.getJBMSLockOnDB(Unknown
Source)
        at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.boot(Unknown
Source)
        at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.FileMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown
Source)
        at org.apache.derby.impl.store.raw.RawStore.boot(Unknown Source)
        at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.FileMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown
Source)
        at org.apache.derby.impl.store.access.RAMAccessManager.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.FileMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown
Source)
        at org.apache.derby.impl.db.BasicDatabase.bootStore(Unknown Source)
        at org.apache.derby.impl.db.BasicDatabase.boot(Unknown Source)
        at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown
Source)
        at
org.apache.derby.impl.services.monitor.BaseMonitor.startProviderService(Unknown
Source)
        at
org.apache.derby.impl.services.monitor.BaseMonitor.findProviderAndStartService(Unknown
Source)
        at
org.apache.derby.impl.services.monitor.BaseMonitor.startPersistentService(Unknown
Source)
        at
org.apache.derby.iapi.services.monitor.Monitor.startPersistentService(Unknown
Source)
        ... 94 more
------

NestedThrowables:
java.sql.SQLException: Unable to open a test connection to the given
database. JDBC url = jdbc:derby:;databaseName=metastore_db;create=true,
username = APP. Terminating connection pool (set lazyInit to true if you
expect to start your database after your app). Original Exception: ------
java.sql.SQLException: Failed to start database 'metastore_db' with class
loader
org.apache.spark.sql.hive.client.IsolatedClientLoader$$anon$1@d187feb, see
the next exception for details.
        at 
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
        at 
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
        at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedConnection.bootDatabase(Unknown 
Source)
        at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
        at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown
Source)
        at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
        at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
        at org.apache.derby.jdbc.AutoloadedDriver.connect(Unknown Source)
        at java.sql.DriverManager.getConnection(DriverManager.java:664)
        at java.sql.DriverManager.getConnection(DriverManager.java:208)
        at com.jolbox.bonecp.BoneCP.obtainRawInternalConnection(BoneCP.java:361)
        at com.jolbox.bonecp.BoneCP.<init>(BoneCP.java:416)
        at
com.jolbox.bonecp.BoneCPDataSource.getConnection(BoneCPDataSource.java:120)
        at
org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getConnection(ConnectionFactoryImpl.java:501)
        at
org.datanucleus.store.rdbms.RDBMSStoreManager.<init>(RDBMSStoreManager.java:298)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at
org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:631)
        at
org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:301)
        at
org.datanucleus.NucleusContext.createStoreManagerForProperties(NucleusContext.java:1187)
        at org.datanucleus.NucleusContext.initialise(NucleusContext.java:356)
        at
org.datanucleus.api.jdo.JDOPersistenceManagerFactory.freezeConfiguration(JDOPersistenceManagerFactory.java:775)
        at
org.datanucleus.api.jdo.JDOPersistenceManagerFactory.createPersistenceManagerFactory(JDOPersistenceManagerFactory.java:333)
        at
org.datanucleus.api.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory(JDOPersistenceManagerFactory.java:202)
        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 javax.jdo.JDOHelper$16.run(JDOHelper.java:1965)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.jdo.JDOHelper.invoke(JDOHelper.java:1960)
        at
javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1166)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:808)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:701)
        at
org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:365)
        at
org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:394)
        at
org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:291)
        at
org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:258)
        at 
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:76)
        at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:136)
        at
org.apache.hadoop.hive.metastore.RawStoreProxy.<init>(RawStoreProxy.java:57)
        at
org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:66)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStore(HiveMetaStore.java:593)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:571)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:624)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:461)
        at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:66)
        at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:72)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:5762)
        at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:199)
        at
org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:74)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at
org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1521)
        at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:86)
        at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)
        at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)
        at
org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3005)
        at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3024)
        at
org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:503)
        at
org.apache.spark.sql.hive.client.HiveClientImpl.<init>(HiveClientImpl.scala:171)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at
org.apache.spark.sql.hive.client.IsolatedClientLoader.createClient(IsolatedClientLoader.scala:258)
        at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:359)
        at
org.apache.spark.sql.hive.HiveUtils$.newClientForMetadata(HiveUtils.scala:263)
        at
org.apache.spark.sql.hive.HiveSharedState.metadataHive$lzycompute(HiveSharedState.scala:39)
        at
org.apache.spark.sql.hive.HiveSharedState.metadataHive(HiveSharedState.scala:38)
        at
org.apache.spark.sql.hive.HiveSharedState.externalCatalog$lzycompute(HiveSharedState.scala:46)
        at
org.apache.spark.sql.hive.HiveSharedState.externalCatalog(HiveSharedState.scala:45)
        at
org.apache.spark.sql.hive.HiveSessionState.catalog$lzycompute(HiveSessionState.scala:50)
        at
org.apache.spark.sql.hive.HiveSessionState.catalog(HiveSessionState.scala:48)
        at
org.apache.spark.sql.hive.HiveSessionState$$anon$1.<init>(HiveSessionState.scala:63)
        at
org.apache.spark.sql.hive.HiveSessionState.analyzer$lzycompute(HiveSessionState.scala:63)
        at
org.apache.spark.sql.hive.HiveSessionState.analyzer(HiveSessionState.scala:62)
        at
org.apache.spark.sql.execution.QueryExecution.assertAnalyzed(QueryExecution.scala:49)
        at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:64)
        at
org.apache.spark.sql.SparkSession.applySchemaToPythonRDD(SparkSession.scala:666)
        at
org.apache.spark.sql.SparkSession.applySchemaToPythonRDD(SparkSession.scala:656)
        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:237)
        at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
        at py4j.Gateway.invoke(Gateway.java:280)
        at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:128)
        at py4j.commands.CallCommand.execute(CallCommand.java:79)
        at py4j.GatewayConnection.run(GatewayConnection.java:211)
        at java.lang.Thread.run(Thread.java:745)
Caused by: ERROR XJ040: Failed to start database 'metastore_db' with class
loader
org.apache.spark.sql.hive.client.IsolatedClientLoader$$anon$1@d187feb, see
the next exception for details.
        at org.apache.derby.iapi.error.StandardException.newException(Unknown
Source)
        at
org.apache.derby.impl.jdbc.SQLExceptionFactory.wrapArgsForTransportAcrossDRDA(Unknown
Source)
        ... 97 more
Caused by: ERROR XSDB6: Another instance of Derby may have already booted
the database C:\Sparkcourse\metastore_db.
        at org.apache.derby.iapi.error.StandardException.newException(Unknown
Source)
        at org.apache.derby.iapi.error.StandardException.newException(Unknown
Source)
        at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.privGetJBMSLockOnDB(Unknown
Source)
        at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.run(Unknown
Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.getJBMSLockOnDB(Unknown
Source)
        at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.boot(Unknown
Source)
        at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.FileMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown
Source)
        at org.apache.derby.impl.store.raw.RawStore.boot(Unknown Source)
        at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.FileMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown
Source)
        at org.apache.derby.impl.store.access.RAMAccessManager.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.BaseMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.FileMonitor.startModule(Unknown
Source)
        at 
org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Unknown
Source)
        at org.apache.derby.impl.db.BasicDatabase.bootStore(Unknown Source)
        at org.apache.derby.impl.db.BasicDatabase.boot(Unknown Source)
        at org.apache.derby.impl.services.monitor.BaseMonitor.boot(Unknown 
Source)
        at org.apache.derby.impl.services.monitor.TopService.bootModule(Unknown
Source)
        at 
org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown
Source)
        at
org.apache.derby.impl.services.monitor.BaseMonitor.startProviderService(Unknown
Source)
        at
org.apache.derby.impl.services.monitor.BaseMonitor.findProviderAndStartService(Unknown
Source)
        at
org.apache.derby.impl.services.monitor.BaseMonitor.startPersistentService(Unknown
Source)
        at
org.apache.derby.iapi.services.monitor.Monitor.startPersistentService(Unknown
Source)
        ... 94 more
------

        at
org.datanucleus.api.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:436)
        at
org.datanucleus.api.jdo.JDOPersistenceManagerFactory.freezeConfiguration(JDOPersistenceManagerFactory.java:788)
        at
org.datanucleus.api.jdo.JDOPersistenceManagerFactory.createPersistenceManagerFactory(JDOPersistenceManagerFactory.java:333)
        at
org.datanucleus.api.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory(JDOPersistenceManagerFactory.java:202)
        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 javax.jdo.JDOHelper$16.run(JDOHelper.java:1965)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.jdo.JDOHelper.invoke(JDOHelper.java:1960)
        at
javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1166)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:808)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:701)
        at
org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:365)
        at
org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:394)
        at
org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:291)
        at
org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:258)
        at 
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:76)
        at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:136)
        at
org.apache.hadoop.hive.metastore.RawStoreProxy.<init>(RawStoreProxy.java:57)
        at
org.apache.hadoop.hive.metastore.RawStoreProxy.getProxy(RawStoreProxy.java:66)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newRawStore(HiveMetaStore.java:593)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:571)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:624)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:461)
        at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:66)
        at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:72)
        at
org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:5762)
        at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:199)
        at
org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:74)
        ... 43 more




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