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https://issues.apache.org/jira/browse/HIVE-3460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13455398#comment-13455398
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Carl Steinbach commented on HIVE-3460:
--------------------------------------
Ed reported encountering this problem in an email to hive-user list:
http://mail-archives.apache.org/mod_mbox/hive-user/201107.mbox/%3c4f6b25afffcafe44b6259a412d5f9b1033183...@exchmbx104.netflix.com%3E
He noted that in some cases it's possible to prevent this error by setting
datanucleus.fixedDataStore=true.
> 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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