[ http://issues.apache.org/jira/browse/DERBY-418?page=comments#action_12429264 ] Daniel John Debrunner commented on DERBY-418: ---------------------------------------------
Closing the activation directly in the finalize method will lead to problems. The close of the activation requires obtaining synchronization which is not recommended for the finalizer thread, it can lead to deadlocks with the thread that owns the connection and its synchronization. That's why the activations are closed indirectly through the set inactive state mechanism. > outofmemory error when running large query in autocommit=false mode > ------------------------------------------------------------------- > > Key: DERBY-418 > URL: http://issues.apache.org/jira/browse/DERBY-418 > Project: Derby > Issue Type: Bug > Components: Store > Affects Versions: 10.1.1.0 > Environment: I can reproduce this problem on Win2k/ T42 laptop. > jdk141. > Reporter: Sunitha Kambhampati > Assigned To: Mayuresh Nirhali > Fix For: 10.2.1.0 > > Attachments: AutoCommitTest.java > > > On the derby-user list, Chris reported tihs problem with his application and > also a repro for the problem. I am logging the jira issue so it doesnt get > lost in all the mail. > (http://www.mail-archive.com/derby-user@db.apache.org/msg01258.html) > ------from chris's post---------- > I'm running a set of ~50000 queries on one table, using inserts and updates, > and i want to be able to roll them back so i turned off autocommit using > setAutoCommit(false). As the update runs, the memory used by the JVM > increases continually until i get the following exception about 20% of the > way through: > ERROR 40XT0: An internal error was identified by RawStore module. > at > org.apache.derby.iapi.error.StandardException.newException(StandardException.java) > at org.apache.derby.impl.store.raw.xact.Xact.setActiveState(Xact.java) > at org.apache.derby.impl.store.raw.xact.Xact.openContainer(Xact.java) > at > org.apache.derby.impl.store.access.conglomerate.OpenConglomerate.init(OpenConglomerate.java) > at org.apache.derby.impl.store.access.heap.Heap.open(Heap.java) > at > org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java) > at > org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java) > at > org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(DataDictionaryImpl.java) > at > org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(DataDictionaryImpl.java) > at > org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(DataDictionaryImpl.java) > at > org.apache.derby.impl.sql.compile.QueryTreeNode.getSchemaDescriptor(QueryTreeNode.java) > at > org.apache.derby.impl.sql.compile.QueryTreeNode.getSchemaDescriptor(QueryTreeNode.java) > at > org.apache.derby.impl.sql.compile.FromBaseTable.bindTableDescriptor(FromBaseTable.java) > at > org.apache.derby.impl.sql.compile.FromBaseTable.bindNonVTITables(FromBaseTable.java) > at org.apache.derby.impl.sql.compile.FromList.bindTables(FromList.java) > at > org.apache.derby.impl.sql.compile.SelectNode.bindNonVTITables(SelectNode.java) > at > org.apache.derby.impl.sql.compile.DMLStatementNode.bindTables(DMLStatementNode.java) > at > org.apache.derby.impl.sql.compile.DMLStatementNode.bind(DMLStatementNode.java) > at > org.apache.derby.impl.sql.compile.ReadCursorNode.bind(ReadCursorNode.java) > at org.apache.derby.impl.sql.compile.CursorNode.bind(CursorNode.java) > at > org.apache.derby.impl.sql.GenericStatement.prepMinion(GenericStatement.java) > at > org.apache.derby.impl.sql.GenericStatement.prepare(GenericStatement.java) > at > org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(GenericLanguageConnectionContext.java) > at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java) > at > org.apache.derby.impl.jdbc.EmbedStatement.executeQuery(EmbedStatement.java) > at vi.hotspot.database.DataInterface._query(DataInterface.java:181) > at vi.hotspot.database.DataInterface.query(DataInterface.java:160) > at > vi.hotspot.database.UpdateManager.updatePartialTable(UpdateManager.java:518) > at > vi.hotspot.database.UpdateManager.updatePartialTables(UpdateManager.java:619) > at vi.hotspot.database.UpdateManager.run(UpdateManager.java:924) > at java.lang.Thread.run(Thread.java:534) > vi.hotspot.exception.ServerTransactionException > at > vi.hotspot.database.UpdateManager.updatePartialTable(UpdateManager.java:555) > at > vi.hotspot.database.UpdateManager.updatePartialTables(UpdateManager.java:619) > at vi.hotspot.database.UpdateManager.run(UpdateManager.java:924) > at java.lang.Thread.run(Thread.java:534) > Derby is running in standalone mode. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
