第1个回答 2017-11-17
问题描述：
部署hive-0.12.0版本，采用mysql 数据库，总出现问题，如下：
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:631)
at org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:325)
at org.datanucleus.store.AbstractStoreManager.registerConnectionFactory(AbstractStoreManager.java:281)
at org.datanucleus.store.AbstractStoreManager.(AbstractStoreManager.java:239)
at org.datanucleus.store.rdbms.RDBMSStoreManager.(RDBMSStoreManager.java:292)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
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:1069)
at org.datanucleus.NucleusContext.initialise(NucleusContext.java:359)
at org.datanucleus.api.jdo.JDOPersistenceManagerFactory.freezeConfiguration(JDOPersistenceManagerFactory.java:768)
... 59 more
Caused by: org.datanucleus.exceptions.NucleusException: Attempt to invoke the "BoneCP" plugin to create a ConnectionPool gave an error : The specified datastore driver ("com.mysql.jdbc.Driver") was not found in the CLASSPATH. Please check your CLASSPATH specification, and the name of the driver.
at org.datanucleus.store.rdbms.ConnectionFactoryImpl.generateDataSources(ConnectionFactoryImpl.java:237)
at org.datanucleus.store.rdbms.ConnectionFactoryImpl.initialiseDataSources(ConnectionFactoryImpl.java:110)
at org.datanucleus.store.rdbms.ConnectionFactoryImpl.(ConnectionFactoryImpl.java:82)
... 77 more
Caused by: org.datanucleus.store.rdbms.datasource.DatastoreDriverNotFoundException: The specified datastore driver ("com.mysql.jdbc.Driver") was not found in the CLASSPATH. Please check your CLASSPATH specification, and the name of the driver.
at org.datanucleus.store.rdbms.datasource.AbstractDataSourceFactory.loadDriver(AbstractDataSourceFactory.java:58)
at org.datanucleus.store.rdbms.datasource.BoneCPDataSourceFactory.makePooledDataSource(BoneCPDataSourceFactory.java:61)
at org.datanucleus.store.rdbms.ConnectionFactoryImpl.generateDataSources(ConnectionFactoryImpl.java:217)
... 79 more
14/05/05 16:34:23 INFO ql.Driver:
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
14/05/05 16:34:23 ERROR ql.Driver: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
14/05/05 16:34:23 INFO ql.Driver:
14/05/05 16:34:23 INFO ql.Driver:
14/05/05 16:34:23 INFO ql.Driver:
14/05/05 16:34:23 INFO exec.ListSinkOperator: 0 finished. closing...
14/05/05 16:34:23 INFO exec.ListSinkOperator: 0 forwarded 0 rows
14/05/05 16:34:24 INFO ql.Driver:
14/05/05 16:34:24 INFO ql.Driver:
解决方法：
hive -hiveconf hive.root.logger=DEBUG,console
强烈建议采用才debug模式查错误，仔细查看内容，缺少mysql的驱动：mysql-connector-java-5.0.8-bin.jar
放到hive/lib下即可解决上述的问题。
现象和问题有时离得很远，只有借助足够的信息才可以解决问题。
hive部署只是起步阶段！