Mailing-List: contact derby-dev-help@db.apache.org; run by ezmlm
Precedence: bulk
Reply-To: <derby-dev@db.apache.org>
Message-ID: <22867702.1156774584244.JavaMail.jira@brutus>
Date: Mon, 28 Aug 2006 07:16:24 -0700 (PDT)
From: "Mayuresh Nirhali (JIRA)" <derby-dev@db.apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Updated: (DERBY-418) outofmemory error when running large
 query in autocommit=false mode
In-Reply-To: <212615905.1120164119028.JavaMail.jira@ajax.apache.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

     [ http://issues.apache.org/jira/browse/DERBY-418?page=all ]

Mayuresh Nirhali updated DERBY-418:
-----------------------------------

    Attachment: derby418_v5.diff

Thanks Dan for great suggestions.

I have integrated your suggestions in this latest patch. Regarding the acts.size() > 20 clause, I think it could still be beneficial. With this clause, we can prevent the overhead of iterating through the entire activation vector everytime an activation is marked unused. Since this is a clean up activity, defering the close of unused activations by some time should not cause extra overhead for every such object. let me know if there is anything I am missing here. This clause is not removed in the latest patch.

I have also reindentated the changed code and it should look fine now.

> 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, derby418_v1.diff, derby418_v2.diff, derby418_v3.diff, derby418_v4.diff, derby418_v5.diff
>
>
> 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