Grokbase Groups Hive user August 2010
FAQ
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.(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.(HiveServer.java:79)
at
org.apache.hadoop.hive.jdbc.HiveConnection.(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.(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>

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postedAug 30, '10 at 5:31a
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