Lenni Kuff created HIVE-3460:
--------------------------------
Summary: Simultaneous attempts to initialize the Hive Metastore
can fail due to error "Table 'metastore_DELETEME1347565995856' doesn't exist"
Key: HIVE-3460
URL: https://issues.apache.org/jira/browse/HIVE-3460
Project: Hive
Issue Type: Bug
Components: Metastore
Affects Versions: 0.8.1
Reporter: Lenni Kuff
If multiple clients attempt to access/initialize the Hive Metastore at the same
time they can fail due to error "Table 'metastore_DELETEME1347565995856'
doesn't exist". A common scenario where this could happen is if there is a
central mysql metastore and clients from multiple machines attempt to read from
the metastore at the same time. This is outside of a standalone Hive Server
install scenario.
I believe this is not actually a Hive bug, but instead a Data Nucleus issue.
{code}
Exception in thread "main" javax.jdo.JDODataStoreException: Exception thrown
obtaining schema column information from datastore
at
org.datanucleus.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:313)
at
org.datanucleus.ObjectManagerImpl.getExtent(ObjectManagerImpl.java:4154)
at
org.datanucleus.store.rdbms.query.legacy.JDOQLQueryCompiler.compileCandidates(JDOQLQueryCompiler.java:411)
at
org.datanucleus.store.rdbms.query.legacy.QueryCompiler.executionCompile(QueryCompiler.java:312)
at
org.datanucleus.store.rdbms.query.legacy.JDOQLQueryCompiler.compile(JDOQLQueryCompiler.java:225)
at
org.datanucleus.store.rdbms.query.legacy.JDOQLQuery.compileInternal(JDOQLQuery.java:175)
at org.datanucleus.store.query.Query.executeQuery(Query.java:1628)
at
org.datanucleus.store.rdbms.query.legacy.JDOQLQuery.executeQuery(JDOQLQuery.java:245)
at org.datanucleus.store.query.Query.executeWithArray(Query.java:1499)
at org.datanucleus.jdo.JDOQuery.execute(JDOQuery.java:243)
at
org.apache.hadoop.hive.metastore.ObjectStore.getMDatabase(ObjectStore.java:389)
at
org.apache.hadoop.hive.metastore.ObjectStore.getDatabase(ObjectStore.java:408)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB_core(HiveMetaStore.java:485)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.access$300(HiveMetaStore.java:141)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler$5.run(HiveMetaStore.java:507)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler$5.run(HiveMetaStore.java:504)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.executeWithRetry(HiveMetaStore.java:360)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:504)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:266)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:228)
at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:114)
at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:98)
NestedThrowablesStackTrace:
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table
'metastore_DELETEME1347565995856' doesn't exist
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 com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1030)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3558)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3490)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1959)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2109)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2637)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2566)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1464)
at com.mysql.jdbc.DatabaseMetaData$2.forEach(DatabaseMetaData.java:2472)
at com.mysql.jdbc.IterateBlock.doForAll(IterateBlock.java:50)
at
com.mysql.jdbc.DatabaseMetaData.getColumns(DatabaseMetaData.java:2346)
at
org.apache.commons.dbcp.DelegatingDatabaseMetaData.getColumns(DelegatingDatabaseMetaData.java:218)
at
org.datanucleus.store.rdbms.adapter.DatabaseAdapter.getColumns(DatabaseAdapter.java:1460)
at
org.datanucleus.store.rdbms.schema.RDBMSSchemaHandler.refreshTableData(RDBMSSchemaHandler.java:924)
at
org.datanucleus.store.rdbms.schema.RDBMSSchemaHandler.getRDBMSTableInfoForTable(RDBMSSchemaHandler.java:823)
at
org.datanucleus.store.rdbms.schema.RDBMSSchemaHandler.getRDBMSTableInfoForTable(RDBMSSchemaHandler.java:772)
at
org.datanucleus.store.rdbms.schema.RDBMSSchemaHandler.getSchemaData(RDBMSSchemaHandler.java:207)
at
org.datanucleus.store.rdbms.RDBMSStoreManager.getColumnInfoForTable(RDBMSStoreManager.java:1699)
at
org.datanucleus.store.rdbms.table.TableImpl.validateColumns(TableImpl.java:218)
at
org.datanucleus.store.rdbms.RDBMSStoreManager$ClassAdder.performTablesValidation(RDBMSStoreManager.java:2702)
at
org.datanucleus.store.rdbms.RDBMSStoreManager$ClassAdder.addClassTablesAndValidate(RDBMSStoreManager.java:2503)
at
org.datanucleus.store.rdbms.RDBMSStoreManager$ClassAdder.run(RDBMSStoreManager.java:2148)
at
org.datanucleus.store.rdbms.AbstractSchemaTransaction.execute(AbstractSchemaTransaction.java:113)
at
org.datanucleus.store.rdbms.RDBMSStoreManager.addClasses(RDBMSStoreManager.java:986)
at
org.datanucleus.store.rdbms.RDBMSStoreManager.addClasses(RDBMSStoreManager.java:952)
at
org.datanucleus.store.AbstractStoreManager.addClass(AbstractStoreManager.java:919)
at
org.datanucleus.store.mapped.MappedStoreManager.getDatastoreClass(MappedStoreManager.java:356)
at
org.datanucleus.store.rdbms.query.legacy.ExtentHelper.getExtent(ExtentHelper.java:48)
at
org.datanucleus.store.rdbms.RDBMSStoreManager.getExtent(RDBMSStoreManager.java:1332)
at
org.datanucleus.ObjectManagerImpl.getExtent(ObjectManagerImpl.java:4149)
at
org.datanucleus.store.rdbms.query.legacy.JDOQLQueryCompiler.compileCandidates(JDOQLQueryCompiler.java:411)
at
org.datanucleus.store.rdbms.query.legacy.QueryCompiler.executionCompile(QueryCompiler.java:312)
at
org.datanucleus.store.rdbms.query.legacy.JDOQLQueryCompiler.compile(JDOQLQueryCompiler.java:225)
at
org.datanucleus.store.rdbms.query.legacy.JDOQLQuery.compileInternal(JDOQLQuery.java:175)
{code}
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