Error in ONS logs while implmenting FCF on oracle RAC from java program

Question

I have java prog on client machine that uses properties from a property file.While making the connection to the ONS port on the oracle RAC server to implement FCF the program is throwing error as below:
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
and when i checked the ons logs for that node the logs are as follows:
Connection 5,199.xxx.xxxxxx,8200 header RCV failed (Connect
ion reset by peer) coFlags=1002a
These logs are generated only when java program tries to connect else the daemon started without any errors.
But sometime it connets and gives the desired output.
Please advice and do let me know in case you need more information.
Java program on the client machine is as follows..
* Oracle Support Services
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Enumeration;
import java.util.Properties;
import java.util.ResourceBundle;
import oracle.jdbc.pool.OracleConnectionCacheManager;
import oracle.jdbc.pool.OracleDataSource;
public class FCFConnectionCacheExample
private OracleDataSource ods = null;
private OracleConnectionCacheManager occm = null;
private Properties cacheProperties = null;
public FCFConnectionCacheExample() throws SQLException
// create a cache manager
occm = OracleConnectionCacheManager.getConnectionCacheManagerInstance();
Properties props = loadProperties("fcfcache");
cacheProperties = new java.util.Properties();
cacheProperties.setProperty("InitialLimit", (String)props.get("InitialLimit"));
cacheProperties.setProperty("MinLimit", (String)props.get("MinLimit"));
cacheProperties.setProperty("MaxLimit", (String)props.get("MaxLimit"));
ods = new OracleDataSource();
ods.setUser((String)props.get("username"));
ods.setPassword((String)props.get("password"));
ods.setConnectionCachingEnabled(true);
ods.setFastConnectionFailoverEnabled(true);
ods.setConnectionCacheName("MyCache");
ods.setONSConfiguration((String)props.get("onsconfig"));
ods.setURL((String)props.get("url"));
occm.createCache("MyCache", ods, cacheProperties);
private Properties loadProperties (String file)
Properties prop = new Properties();
ResourceBundle bundle = ResourceBundle.getBundle(file);
Enumeration enumlist = bundle.getKeys();
String key = null;
while (enumlist.hasMoreElements())
key = (String) enumlist.nextElement();
prop.put(key, bundle.getObject(key));
return prop;
public void run() throws Exception
Connection conn = null;
Statement stmt = null;
ResultSet rset = null;
String sQuery =
"select sys_context('userenv', 'instance_name'), " +
"sys_context('userenv', 'server_host'), " +
"sys_context('userenv', 'service_name') " +
"from dual";
try
conn = null;
conn = ods.getConnection();
stmt = conn.createStatement();
rset = stmt.executeQuery(sQuery);
rset.next();
System.out.println("-----------");
System.out.println("Instance -> " + rset.getString(1));
System.out.println("Host -> " + rset.getString(2));
System.out.println("Service -> " + rset.getString(3));
System.out.println("NumberOfAvailableConnections: " +
occm.getNumberOfAvailableConnections("MyCache"));
System.out.println("NumberOfActiveConnections: " +
occm.getNumberOfActiveConnections("MyCache"));
System.out.println("-----------");
catch (SQLException sqle)
while (sqle != null)
System.out.println("SQL State: " + sqle.getSQLState());
System.out.println("Vendor Specific code: " +
sqle.getErrorCode());
Throwable te = sqle.getCause();
while (te != null) {
System.out.print("Throwable: " + te);
te = te.getCause();
sqle.printStackTrace();
sqle = sqle.getNextException();
finally
try
rset.close();
stmt.close();
conn.close();
catch (SQLException sqle2)
System.out.println("Error during close");
public static void main(String[] args)
System.out.println(">> PROGRAM using JDBC thin driver no oracle client required");
System.out.println(">> ojdbc14.jar and ons.jar must be in the CLASSPATH");
System.out.println(">> Press CNTRL C to exit running program\n");
try
FCFConnectionCacheExample test = new FCFConnectionCacheExample();
while (true)
test.run();
Thread.currentThread().sleep(10000);
catch (InterruptedException e)
System.out.println("PROGRAM Ended by user");
catch (Exception ex)
System.out.println("Error Occurred in MAIN");
ex.printStackTrace();
Some of the info i have deleted intensionally as this is confidential
Property file is as follows
# properties required for test
username=test
password=test
InitialLimit=10
MinLimit=10
MaxLimit=20
onsconfig=nodes=RAC-node1:port,RAC-node2:port
url=jdbc:oracle:thin:@(DESCRIPTION= \
(LOAD_BALANCE=yes) \
(ADDRESS=(PROTOCOL=TCP)(HOST=RAC-node1)(PORT=1521)) \
(ADDRESS=(PROTOCOL=TCP)(HOST=RAC-node1)(PORT=1521)) \
(CONNECT_DATA=(service_name=RAC_SERVICE)))

Answer 1

Hi;
Please check below note:
Link Errors While Installing CRS & RAC Database software [ID 438747.1]
Codeword File $TIMEBOMB_CWD,/opt/aCC/newconfig/aCC.cwd Missing Or Empty [ID 552893.1]
Regard
Helios