Loading big XML files using JDBC gives errors

Question

Hi,
I've created a XMLType table using binary storage, with the restriction that any document stored has a (any) schema:
CREATE TABLE XMLBIN OF XMLTYPE
XMLTYPE STORE AS BINARY XML
ALLOW ANYSCHEMA;Then I use JDBC to store a relatively large document using the following code:
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
String connectionString = "jdbc:oracle:thin:@host:1521:sid";
File f = new File("c:\\temp\\big.xml");
Connection conn = DriverManager.getConnection(connectionString, "username", "password");
XMLType xml = XMLType.createXML(conn,new FileInputStream(f));
String statementText = "INSERT INTO xmlbin VALUES (?)";
OracleResultSet resultSet = null;
OracleCallableStatement statement = (OracleCallableStatement)conn.prepareCall(statementText);
statement.setObject(1,xml);
statement.execute();
statement.close();
conn.commit();
conn.close();Loading a file of 61Mb (real Mb, in non-IT Mb (where 1Mb seems to be 10^6) it is 63.9Mb) or less doesn't give any errors, loading a file bigger then that gives the following error:
java.sql.SQLRecoverableException: Io exception: Software caused connection abort: socket write error
        at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:101)
        at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:112)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:173)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:229)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:458)
        at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:960)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1222)
        at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3381)
        at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3482)
        at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:3856)
        at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1373)
        at jdbctest.Tester.main(Tester.java:60)A succesful insert of a 63Mb file takes about 23 seconds to execute. The 70Mb file fails already after a few seconds, so I'm ruling out any time outs.
I'm guessing there are some buffers that need to be enlarged, but don't have a clue which ones.
Anyone any idea what might cause the problem and how to resolve?
My server runs Oracle 11g Win32. The client is Windows running Sun Java 1.6, using ojdbc6.jar and Oracle 11g Client installed.
Cheers,
Harald

Answer 1

Hi Mark,
The trace log in the OEM shows me:
Errors in file d:\oracle11g\app\helium\diag\rdbms\helium\helium\trace\helium_ora_6948.trc  (incident=7510): ORA-07445: exception encountered: core dump [__intel_new_memcpy()+613] [ACCESS_VIOLATION] [ADDR:0x0] [PC:0x6104B045] [UNABLE_TO_WRITE] []  If needed I can post the full contents (if I find out how, am still a novice :-))
Cheers,
Harald