Simply put, if you are using an Oracle database, it simply doesn't work (usefully).
Every PreparedStatement that is cached will have an open Connection attached to it, which can't be re-used by the pool. If you want to use statement pools with Oracle, then you'll need to rewrite the DatabaseManager to use Oracle's own implicit connection cache instead of dbcp (which is kind of on my to do list). - although, if you can ensure that the PreparedStatement cache can never be larger than the connection pool, then you presumably should be ok. I'm not sure of the exact behaviour of the Postgres driver as I haven't had cause to look into it - but this is an issue to be aware of with Oracle. G Blanco, Jose wrote: > Graham: > > I notice that the default for db.statementpool is true, should we have this > set to false. What is the danger in leaving it at true? > > Thanks! > Jose > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Graham Triggs > Sent: Tuesday, December 11, 2007 12:49 PM > To: Rodrigo Castro Artigas > Cc: dspace-tech@lists.sourceforge.net > Subject: Re: [Dspace-tech] ORA-01000: nUmero mAximo de cursoresabiertos > excedido > > Hi, > > Ensure that you have disable the prepared statement cache in your > dspace.cfg: > > db.statementpool = false > > G > > On Tue, 2007-12-11 at 14:26 -0300, Rodrigo Castro Artigas wrote: > >> HI, I AM run process import and have the followind message: >> >> java.sql.SQLException: ORA-01000: número máximo de cursores abiertos >> excedido >> at >> oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) >> at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331) >> at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288) >> at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:745) >> at >> oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.j >> ava:21 >> 6) >> at >> oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement. >> java:966) >> at >> oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatemen >> t.java >> :1170) >> at >> oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePrepa >> redSta >> tement.java:3339) >> at >> oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePrepare >> dState >> ment.java:3423) >> at >> org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(Dele >> gating >> PreparedStatement.java:101) >> at >> org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(Dele >> gating >> PreparedStatement.java:101) >> at >> org.dspace.storage.rdbms.DatabaseManager.updateQuery(DatabaseManager.j >> ava:51 >> 9) >> at >> org.dspace.storage.rdbms.DatabaseManager.updateQuery(DatabaseManager.j >> ava:53 >> 9) >> at org.dspace.browse.Browse.itemRemoved(Browse.java:439) >> at org.dspace.content.Collection.delete(Collection.java:952) >> at org.dspace.content.Community.removeCollection(Community.java:751) >> at >> org.dspace.app.webui.servlet.admin.EditCommunitiesServlet.doDSPost(Edi >> tCommu >> nitiesServlet.java:275) >> at >> org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServle >> t.java >> :147) >> at >> org.dspace.app.webui.servlet.DSpaceServlet.doPost(DSpaceServlet.java:105) >> at >> javax.servlet.http.HttpServlet.service(HttpServlet.java:709) >> >> The solution with change configuration Dspace or Oracle?????????? >> >> Atte., >> Rodrigo >> >> >> ---------------------------------------------------------------------- >> --- >> SF.Net email is sponsored by: >> Check out the new SourceForge.net Marketplace. >> It's the best place to buy or sell services for just about anything >> Open Source. >> http://sourceforge.net/services/buy/index.php >> _______________________________________________ >> DSpace-tech mailing list >> DSpace-tech@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/dspace-tech >> > This email has been scanned by Postini. > For more information please visit http://www.postini.com > > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for just about anything Open > Source. > http://sourceforge.net/services/buy/index.php > _______________________________________________ > DSpace-tech mailing list > DSpace-tech@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/dspace-tech > This email has been scanned by Postini. For more information please visit http://www.postini.com ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
