Are you using the latest hive-default.xml? It should contain more datanucleus 
properties than below. It is looking for a table called 'NUCLEUS_TABLES' which 
contains list of tables that got created when the original schema was created.

Prasad

________________________________
From: Bill Graham <[email protected]>
Reply-To: <[email protected]>, <[email protected]>
Date: Wed, 5 Aug 2009 10:19:24 -0700
To: <[email protected]>
Subject: Errors creating MySQL metastore

Hi,

I'm trying to set up a MySQL metastore for Hive and I'm getting the exceptions 
shown below. If anyone could shed some insight as to why this is happening, it 
would be greatly appreciated.

My hive-sites.xml is also attached below. This is how it looks when I start the 
Hive client with an empty db. The schema gets created, but the errors attached 
below appear. After the db is created I change datanucleus.autoCreateSchema to 
false before restarting the client. The same errors appear whenever I restart 
the client and run "show tables", which takes about 30 seconds to complete.

Any ideas how to fix this? I've experimented with many combinations of 
datanucleus.autoCreateColumns and datanucleus.identifier.case, but nothing 
makes a difference.

<property>
    <name>hive.metastore.local</name>
    <value>true</value>
  </property>

  <property>
    <name>javax.jdo.option.ConnectionURL</name>
    <value>jdbc:mysql://xxxxx:11000/hive</value>
  </property>

  <property>
    <name>javax.jdo.option.ConnectionDriverName</name>
    <value>com.mysql.jdbc.Driver</value>
  </property>

  <property>
    <name>javax.jdo.option.ConnectionUserName</name>
    <value>xxxx</value>
  </property>

  <property>
    <name>javax.jdo.option.ConnectionPassword</name>
    <value>xxxx</value>
  </property>

  <property>
    <name>datanucleus.autoCreateSchema</name>
    <value>true</value>
  </property>


2009-08-05 10:05:46,543 ERROR Datastore.Schema (Log4JLogger.java:error(115)) - 
Failed to validate SchemaTable for Schema "". Either it doesnt exist, or doesnt 
validate : Required columns missing from table "NUCLEUS_TABLES" : `TABLE_NAME`, 
VERSION, CLASS_NAME, INTERFACE_NAME, OWNER, `TYPE`. Perhaps your MetaData is 
incorrect, or you havent enabled "datanucleus.autoCreateColumns".
Required columns missing from table "NUCLEUS_TABLES" : `TABLE_NAME`, VERSION, 
CLASS_NAME, INTERFACE_NAME, OWNER, `TYPE`. Perhaps your MetaData is incorrect, 
or you havent enabled "datanucleus.autoCreateColumns".
org.datanucleus.store.rdbms.exceptions.MissingColumnException: Required columns 
missing from table "NUCLEUS_TABLES" : `TABLE_NAME`, VERSION, CLASS_NAME, 
INTERFACE_NAME, OWNER, `TYPE`. Perhaps your MetaData is incorrect, or you 
havent enabled "datanucleus.autoCreateColumns".
        at 
org.datanucleus.store.rdbms.table.TableImpl.validateColumns(TableImpl.java:280)
        at 
org.datanucleus.store.rdbms.table.TableImpl.validate(TableImpl.java:173)
        at 
org.datanucleus.store.rdbms.SchemaAutoStarter.<init>(SchemaAutoStarter.java:101)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at 
org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:576)
        at 
org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:300)
        at 
org.datanucleus.store.AbstractStoreManager.initialiseAutoStart(AbstractStoreManager.java:486)
        at 
org.datanucleus.store.rdbms.RDBMSManager.initialiseSchema(RDBMSManager.java:821)
        at 
org.datanucleus.store.rdbms.RDBMSManager.<init>(RDBMSManager.java:394)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at 
org.datanucleus.plugin.NonManagedPluginRegistry.createExecutableExtension(NonManagedPluginRegistry.java:576)
        at 
org.datanucleus.plugin.PluginManager.createExecutableExtension(PluginManager.java:300)
        at 
org.datanucleus.store.FederationManager.initialiseStoreManager(FederationManager.java:106)
        at 
org.datanucleus.store.FederationManager.<init>(FederationManager.java:68)
        at 
org.datanucleus.ObjectManagerFactoryImpl.initialiseStoreManager(ObjectManagerFactoryImpl.java:152)
        at 
org.datanucleus.jdo.JDOPersistenceManagerFactory.freezeConfiguration(JDOPersistenceManagerFactory.java:529)
        at 
org.datanucleus.jdo.JDOPersistenceManagerFactory.getPersistenceManagerFactory(JDOPersistenceManagerFactory.java:175)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at javax.jdo.JDOHelper$16.run(JDOHelper.java:1956)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.jdo.JDOHelper.invoke(JDOHelper.java:1951)
        at 
javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:1159)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:803)
        at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:698)
        at 
org.apache.hadoop.hive.metastore.ObjectStore.getPMF(ObjectStore.java:161)
        at 
org.apache.hadoop.hive.metastore.ObjectStore.getPersistenceManager(ObjectStore.java:178)
        at 
org.apache.hadoop.hive.metastore.ObjectStore.initialize(ObjectStore.java:122)
        at 
org.apache.hadoop.hive.metastore.ObjectStore.setConf(ObjectStore.java:101)
        at 
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:54)
        at 
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:82)
        at 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:129)
        at 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:145)
        at 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:117)
        at 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:99)
        at 
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:72)
        at 
org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:775)
        at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:786)
        at 
org.apache.hadoop.hive.ql.metadata.Hive.getTablesByPattern(Hive.java:398)
        at org.apache.hadoop.hive.ql.metadata.Hive.getAllTables(Hive.java:387)
        at org.apache.hadoop.hive.ql.exec.DDLTask.showTables(DDLTask.java:347)
        at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:138)
        at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:357)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:263)
        at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:122)
        at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:173)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:266)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
        at org.apache.hadoop.mapred.JobShell.run(JobShell.java:54)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
        at org.apache.hadoop.mapred.JobShell.main(JobShell.java:68)


thanks,
Bill

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