SQLException:Connection timed out- after upgrading from oracle9i to 10g
Hi,
Recently we upgraded from oracle 9i to 10g.
We are using Oracle JDBC Driver version - 10.1.0.5.0 .
In the application, when RMI server starts, the connectionpool (developed using stack) will be filled with 10 instances of fresh connections.
After keeping the RMI server idle for some time ( >24 hours ) , the first transaction sent to the Database (using the connection instance popped out from stack(connectionpool) ) terminates with following exception and from the second transaction onwards everything works normally.
Exception------
java.sql.SQLException: Io exception: Connection timed out
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:162)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:274)
at oracle.jdbc.driver.T4CStatement.execute_for_describe(T4CStatement.java:443)
at oracle.jdbc.driver.OracleStatement.execute_maybe_describe(OracleStatement.java:942)
at oracle.jdbc.driver.T4CStatement.execute_maybe_describe(T4CStatement.java:463)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1037)
at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1183)
at util.DatabaseManager.fetchData(DatabaseManager.java:255)
at util.TextRequestImpl.presentText(TextRequestImpl.java:105)
at util.TextRequestServer.presentText(TextRequestServer.java:146)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
at sun.rmi.transport.Transport$1.run(Transport.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.sql.SQLException: Io exception: Connection timed out
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:162)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:274)
at oracle.jdbc.driver.T4CStatement.execute_for_describe(T4CStatement.java:443)
at oracle.jdbc.driver.OracleStatement.execute_maybe_describe(OracleStatement.java:942)
at oracle.jdbc.driver.T4CStatement.execute_maybe_describe(T4CStatement.java:463)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1037)
at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1183)
at util.DatabaseManager.fetchData(DatabaseManager.java:255)
... 13 more
If am connecting to oracle9i(with Oracle JDBC Driver version - 9.0.2.0.0) ,everything works fine.
Can anyone help me out to solve this issue?
I attempted several upgrades and we decided it was better to implement the content under 10g fresh rather than attempt an upgrade.
After 3-5 attempts through patching non of them provided us with re-produceable steps and we had different errors each time - mind you this was a few months back after initial release of upgrade patches.
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