I use hive-0.6 an use mysql as metasore, but hive don't connection the mysql.
2010-08-30 13:28:24,982 ERROR [main] util.Log4JLogger(125): Failed initialising database. Invalid URL: jdbc:mysql://127.0.0.1:3306/hive6?createDatabaseIfNotExist=true org.datanucleus.exceptions.NucleusDataStoreException: Invalid URL: jdbc:mysql://127.0.0.1:3306/hive6?createDatabaseIfNotExist=true at org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getConnection(ConnectionFactoryImpl.java:536) at org.datanucleus.store.rdbms.RDBMSStoreManager.<init>(RDBMSStoreManager.java:290) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:588) at org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:300) at org.datanucleus.ObjectManagerFactoryImpl.initialiseStoreManager(ObjectManagerFactoryImpl.java:161) at org.datanucleus.jdo.JDOPersistenceManagerFactory.freezeConfiguration(JDOPersistenceManagerFactory.java:583) at org.datanucleus.jdo.JDOPersistenceManagerFactory.createPersistenceManagerFactory(JDOPersistenceManagerFactory.java:286) at org.datanucleus.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory(JDOPersistenceManagerFactory.java:182) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at javax.jdo.JDOHelper$16.run(JDOHelper.java:1958) at java.security.AccessController.doPrivileged(Native Method) at javax.jdo.JDOHelper.invoke(JDOHelper.java:1953) at javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1159) at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:803) at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:698) at org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:191) at org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:208) at org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:153) at org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:128) at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:54) at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:83) at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:276) at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.executeWithRetry(HiveMetaStore.java:228) at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:374) at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:166) at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:125) at org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.<init>(HiveServer.java:79) at org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:85) at org.apache.hadoop.hive.jdbc.HiveDriver.connect(HiveDriver.java:110) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at my.examples.multithreadquery.SimpleSql.main(SimpleSql.java:21) Caused by: java.sql.SQLException: Invalid URL: jdbc:mysql:// 127.0.0.1:3306/hive6?createDatabaseIfNotExist=true at org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:76) at org.apache.hadoop.hive.jdbc.HiveDriver.connect(HiveDriver.java:110) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at org.apache.commons.dbcp.DriverManagerConnectionFactory.createConnection(DriverManagerConnectionFactory.java:75) at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582) at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1148) at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:106) at org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getConnection(ConnectionFactoryImpl.java:521) ... 38 more I find hive0.6 to connection mysql with org.apache.hadoop.hive.jdbc.HiveDriver. I think that is wrong, it should use com.mysql.jdbc.Driver to connection mysql. Below is my conifguration: <property> <name>javax.jdo.option.ConnectionURL</name> <value>jdbc:mysql://127.0.0.1:3306/hive6?createDatabaseIfNotExist=true </value> <description>JDBC connect string for a JDBC metastore</description> </property> <property> <name>javax.jdo.option.ConnectionDriverName</name> <value>com.mysql.jdbc.Driver</value> <description>Driver class name for a JDBC metastore</description> </property> <property> <name>javax.jdo.option.ConnectionUserName</name> <value>root</value> <description>username to use against metastore database</description> </property> <property> <name>javax.jdo.option.ConnectionPassword</name> <value>root</value> <description>password to use against metastore database</description> </property>