Tomcat5.0.28 connection pooling urgent plz.......................

hi all,
I am new to jndi concet.I am trying to do connection pooling in tomcat 5.0.28.
I have searched google a lot but not been able to succeed in this.
I have created the datasource (ccmtest) from tomcat Administration.So it will automatically writes<resource></resourceparams> info in server.xml.
I manually written <resource-ref> in web.xml
I am trying to access the pool from java class.and i have written the following code
Properties p=new roperties(); p.put(Context.INITIAL_CONTEXT_FACTORY,"org.apache.commons.dbcp.BasicDataSourceFactory");
p.put(Context.PROVIDER_URL,"http://localhost:8080");
Context context = new InitialContext(p);
DataSource ds=(DataSource)context.lookup("java:/comp/env/jdbc/ccmtest");
Connection conn = ds.getConnection();
but i am getting the following error:
javax.naming.NoInitialContextException: Cannot instantiate class: org.apache.com mons.dbcp.BasicDataSourceFactory [Root exception is java.lang.ClassCastException]
First i didn't placed the code like p.put(Context.INITIAL_CONTEXT_FACTORY,.........but when i didn't place the code i got the error:
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
I have placed the commonsdbcp.jar,commonspool.jar,commonscollections.jar in classpath.
Plz help me
Advance thanks.

hi aniseed
First of all thanks for the solution.
i have read that documentation several times.and done the same thing what ever documented in that page u have given but still get the error:
javax.naming.NoInitialContextException: Cannot instantiate class: com.mysql.jdbc.jdbc2.optional.MysqlDataSourceFactory [Root exception is java.lang.ClassCastException]

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Forms doesn't do connection pooling -- each user requires a separate database connection.
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plz can any one help me... its urgent
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// JDBCDemoCreate.java
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3.
4.     public class JDBCDemoCreate {
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Hi!
You can try with this code coz, i worked with this code only and then i can talk to the database.
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[email protected]
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Urgent...Help Needed.1. Helper Class 2. Connection Pool

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Hi,
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Urgent regarding connection pooling

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Hi All,
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import java.sql.*;
import javax.sql.*;
import java.util.*;
import java.io.*;
import javax.naming.*;
public class ConnectionPool implements Runnable{
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// is established or if someone finishes with an existing
// connection.
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private Connection makeNewConnection()
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    try {
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public synchronized void free(Connection connection) {
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public synchronized int totalConnections() {
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/** Close all the connections. Use with caution:
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   * calling. Note that you are not <I>required</I> to
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   * regarding when the connections are closed.
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    closeConnections(availableConnections);
    availableConnections = new Vector<java.sql.Connection>();
    closeConnections(busyConnections);
    busyConnections = new Vector<java.sql.Connection>();
private void closeConnections(Vector connections) {
    try {
      for(int i=0; i<connections.size(); i++) {
        Connection connection =
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        if (!connection.isClosed()) {
          connection.close();
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public synchronized String toString() {
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      "ConnectionPool(Data Source is :"+datasource+ ")" +
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      ", busy=" + busyConnections.size() +
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}To Test This code, I had created one Servlet. In This Servlet I m calling like this:
in
init(){
     connectionPool = new ConnectionPool();
}in
in
service(){
     private ConnectionPool connectionPool=null;
     connection = connectionPool.getConnection();
}in destroy of
destroy{
     if(connectionPool != null){
              connectionPool.closeAllConnections();
}The Problem is that, Many a times it work, many a times it shows following Error:
09:56:35,109 WARN [JBossManagedConnectionPool] Unable to fill pool
org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (java.sql.SQLException:
Listener refused the connection with the following error:
ORA-12516, TNS:listener could not find available handler with matching protocol stack
The Connection descriptor used by the client was:
192.168.1.8:1521
        at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFa
ctory.java:177)
        at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.createConnectionEventListener(InternalManagedConn
ectionPool.java:539)
        at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.fillToMin(InternalManagedConnectionPool.java:486)
        at org.jboss.resource.connectionmanager.PoolFiller.run(PoolFiller.java:74)
        at java.lang.Thread.run(Thread.java:595)
Caused by: java.sql.SQLException: Listener refused the connection with the following error:
ORA-12516, TNS:listener could not find available handler with matching protocol stack
The Connection descriptor used by the client was:
192.168.1.8:1521
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:261)
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)
        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:414)
        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
        at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFa
ctory.java:169)
        ... 4 moreI M using JBoss 4.0, With OracleXE. I had defined my DataSource-> msgds in mydb-ds.xml of deploy folder of JBoss.
which is like this:
<?xml version="1.0" encoding="UTF-8"?>
<datasources>
<local-tx-datasource>
    <jndi-name>msgds</jndi-name>
    <connection-url>jdbc:oracle:thin:@192.168.1.8:1521</connection-url>
    <driver-class>oracle.jdbc.OracleDriver</driver-class>
    
    <user-name>ashish</user-name>
    <password>ashish</password>
    <min-pool-size>5</min-pool-size>
    <max-pool-size>100</max-pool-size>
    <idle-timeout-minutes>0</idle-timeout-minutes>
</local-tx-datasource>
</datasources>I want to know whether This is a right approach to do Connection Pooling. How can I implement this Using Commons.
What changes i need to made in my mydb-ds.xml if I use Commons Package and also in the code.

never ask for help to be sent to your email, always post in this thread so that if someone else has the same question they can get the help too.
this should help get you started... just make sure you get the apache dbcp package (you may need some commons things too, like commons pool)
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               throw new Exception("Error: DataSource gave a null connection object");
          return con;
     } catch (Exception e) {
          // whatever
public void freeConnection(Connection con) {
     freeConnection(con, false);
public void freeConnection(Connection con, boolean isError) {
     try {
          if(con == null) return;
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}

Urgent please - Error Testing connection pool

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Message was edited by:
Denimar

Have figured this out. Need to set the "Test Connections" settings under Configurations
(Advanced Options) for the Connection Pool.
Thanks for your help :)
Joe Weinstein <[email protected]> wrote:
Everbright wrote:
Hi,
I've just started working on the Avitek Tutorials.
Encountered the following error message when testing the connectionpools for
both the XA and non-XA connections.
Warning! Connectivity to backend database not verified. This is eitherbecause
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have not been enabled, or an invalid value has been specified for attribute"TestTableName".
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Any ideas what might be wrong?It is likely that some part of the information you specified about how
to connect to
your database was incorrect, so weblogic was unable to make a pool of
connections.
We will know more if you show us the server log file, which will contain
messages
about any errors it suffered during startup...
Joe
Thanks!

Sun applicationserver - connection pool , plz help !

hi all,
when i try to create a connection pool from oracle server it doesnt config
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here are my db properties which are normally using , so please catagorize thse in to jdbc properties properly.
dbDriver ="oracle.jdbc.driver.OracleDriver"
dbLogin = "icr";
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nuwan

http://docs.sun.com/app/docs/doc/819-2641/6n4trr8l0?a=view

Urgent help (on oracle connection pool)

Hi ,
I downloade oracle 8i thin drivers and i am using conenction pool in my application ...
I executed that servlet program
When i try to get conneciton using getDatabaseConnection() method in my jsp i am getting new connection each time ...............
In the oracel doc i read some thing like logical connections and physical connections .............
In my code i set maxLimit to 3 and i am getting connections more than 3 ( all are different).................
When i refresh the browser i am getting different connections like:
con======oracle.jdbc.driver.OracleConnection@338576
con======oracle.jdbc.driver.OracleConnection@1691dec
con======oracle.jdbc.driver.OracleConnection@63ceb4
con======oracle.jdbc.driver.OracleConnection@1590f50
con======oracle.jdbc.driver.OracleConnection@aeff82
con======oracle.jdbc.driver.OracleConnection@906e5b
con======oracle.jdbc.driver.OracleConnection@2403cf
con======oracle.jdbc.driver.OracleConnection@17ab157
See i set max limit as 3 and i got more than 3 connections and each diff ................
What is wrong in my code ............
Please help to me ..........
Here is the code :
import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.sql.*;
import oracle.jdbc.driver.*;
import oracle.jdbc.pool.*;
public class PoolJdbc4 extends HttpServlet{
private OracleConnectionPoolDataSource ocpds;
private OracleConnectionCacheImpl ods;
public void init(ServletConfig config) throws ServletException {
super.init(config);
try {
ocpds =new OracleConnectionPoolDataSource();
ocpds.setURL("jdbc:oracle:xxxxxxxxx");
// ocpds.setUser("xxx");
// ocpds.setPassword("xxx");
// Associate it with the Cache
ods = new OracleConnectionCacheImpl(ocpds);
// Set the Max Limit
ods.setMaxLimit (3);
// Set the Scheme
ods.setCacheScheme (OracleConnectionCacheImpl.FIXED_RETURN_NULL_SCHEME);
catch (Exception e) {
throw new UnavailableException(this, "Couldn't create connection pool");
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
Connection con = null;
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
out.println("Updating salary");
try {
con = ods.getConnection("xxxxx","xxx");
System.out.println("con======="+con);
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con.setAutoCommit(false);
Statement stmt=con.createStatement();
ResultSet rs=stmt.executeQuery("select * from checkout_checkin");
while(rs.next())
out.println(rs.getString(1)+"<br>");
stmt.close();
rs.close();
con.close();
catch (Exception e) {
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try {
con.rollback();
catch (Exception ignored) { }
out.println("No more connections available, try later");
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ketan reddy - I'm pretty sure you are not getting a new connection each time even though you are seeing a different connection identifier printed each time you get a new connection.
If you have system privs, try looking at v$session while your servlet is running. I think you will see that you only have a single connection and it is being used each time.
For another test, try commenting out your conn.close() call so that you do not free up connections. Your servlet should fail after 3 executions cause it will not be able to get any more connections - because you specified
ods.setMaxLimit (3);
ods.setCacheScheme (OracleConnectionCacheImpl.FIXED_RETURN_NULL_SCHEME);
Good Luck
tim

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Hi,
Our asp.net web application use sAP .net connector to make RFC call to sap CRM system. recently, I am trying to utilizing connection pooling, but assigning connection obtained from pool to proxy class , I did exactly the online help docs says, but, i got some very disappointment result, it cause iis worker process memory write proctection error. and very time, I reboot my machine, the problem does not go away, my O.S tells me that "Data Execution proctection" warning comes up and afterwords, iis worker process and etc, I am not sure what I did wrong, any body experience similar problem,
after I uninstall .net connection, and I reboot my machine
, this error went away. Please help.
following is my configuration settings:
<SAP>
       <Connector>
             <ConnectionPool
               MaxOpenConnections="20"
                             MaxCapacity="20"
                       MaxIdleTime="10"
                       CleanupInterval="10" />
                      <Destinations Default="cd1">
                          <Entry
                            DestinationName="cd1"
                            AppServerHost="ASHOST=sapcrd01.bentley.com"
                            SystemNumber="00"
                            Username="ASPRFC"
                            Password="bentley"
                            Client="100"/>
                       </Destinations>
          </Connector>
     </SAP>
following line of code is from myproxy constructor
     this.oCommonProxy.Connection=SAP.Connector.Connection.GetConnectionFromPool(GetConnectStringForUser(this.sRfcUser,this.sRfcPass));
public void CloseConnection()
                                   SAP.Connector.Connection.ReturnConnection(this.oCommonProxy.Connection);
Message was edited by: Yuwen Li
Message was edited by: Yuwen Li

Hm, sounds strange. Can you try to attach a debugger with both, managed and unmanged mode, turn on "first chance exception handling" for all exception types and check the call stack when the exception happens?

HELP:Problem in creating a temporary CLOB using JDBC connection pooling

Hi All,
i am inserting a large xml document in an xml type column by creating a temporary clob of this document
tempClob = CLOB.createTemporary(conn, true, CLOB.DURATION_SESSION);
I am not having any success getting the following statement working using a JDBC connection pool rather than a hard coded URL connection
it works with:
"jdbc:oracle:thin:@server:port:dbname" connection
Does NOT work with:
datasource.getConnection()
Does any one know how to successfully get this to work?
urgently plz........

Hi Dharmi
Here is a quote of Dafna's post in [another thread in this forum|Re: Copy VC controls]
CE7.1.1 will be released at September 2008 for ramp-up customers.
There are many improvements and new capabilities in the new release of Visual Composer for CE7.1.1. Among the new features you can find:
The missing features from Visual Composer 7.0 (Html view, portal Eventing support (EPCM), JDBC, Undo/Redo, and more..)
Many layout & modeling improvements
Additional ALV table functionality - export to Excel, switch to chart, configure ALV behavior at design time
Integration of Visual Composer in Eclipse - additional entry point to the Visual Composer models from the NWDS. This integration provides the option to add a WD component (in case of missing functionality in Visual Composer), as a black box component to the Visual Composer model. Right-clicking the component will open the Web Dynpro perspective for creating/modifying the component.
Regards,
Shai

Oracle connection pool problem (dbcp binded with jtom)

Hi,
my webserver is Tomcat5.0.18, I want to offer the connection pool and transaction management
in my currently system
I know in Tomcat5.0 version, we can use the DBCP to offer the database connection pool
service, to apply the transaction management in my system, I adapt the JTOM
now, my problem is
to use DBCP, I setup the datasource factory to be
org.apache.commons.dbcp.BasicDataSourceFactory, the connection pool is ok, but
the transaction management offerred by JTOM will failure
to make the tranaction management of JTOM succeed, I have to setup the datasource factory to be
org.objectweb.jndi.DataSourceFactory, but the connection pool offerred by Tomcat will failure now
it seems that these two datasource factory has conflict
How can I do?, I don't want to use the connection pool offerred in JTOM
Anyone can help me??
Thanks in advance

Hi,
I don't know the solution for JOTM, but you could try this JTA and its connection pools:
http://www.atomikos.com ships a JTA that integrates with Tomcat and also provides JDBC connection pooling. There is a GUI control panel so that you don't have to know the XML details for Tomcat's config files.
Best,
Guy

Connection pool not re-establishing connections, throwing exception instead

Hello,
I've just set up a connection pool on the sun java system application server 8 for a MySQL database using the official mysql-connector/j 5.0. Everything is working great, except when the connections timeout (or i kill them all manually from the database server) and then request a page that needs to use the DataSource object, the following exception is thrown:
Exception thrown: com.mysql.jdbc.CommunicationsException -- Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.io.EOFException
STACKTRACE:
java.io.EOFException
     at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1913)
     at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2304)
     at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2803)
     at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1573)
     at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
     at com.mysql.jdbc.Connection.execSQL(Connection.java:3118)
     at com.mysql.jdbc.Connection.execSQL(Connection.java:3047)
     at com.mysql.jdbc.Statement.executeQuery(Statement.java:1166)
     at com.mysql.jdbc.jdbc2.optional.StatementWrapper.executeQuery(StatementWrapper.java:705)
     at beans.MySessionBean.businessMethod(MySessionBean.java:73)
     at org.apache.jsp.index_jsp._jspService(index_jsp.java:70)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:105)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:860)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:336)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:251)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:860)
     at sun.reflect.GeneratedMethodAccessor98.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
     at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)
     at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:257)
     at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)
     at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161)
     at java.security.AccessController.doPrivileged(Native Method)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:263)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
     at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:132)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933)
     at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:185)
     at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:653)
     at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:534)
     at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doTask(ProcessorTask.java:403)
     at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:55)
** END NESTED EXCEPTION **
Last packet sent to the server was 16 ms ago.What could be wrong?
Thank you.

The code is here:
    public String businessMethod() {
        //TODO implement businessMethod
        try
            InitialContext ic = new InitialContext();
            Object obj = ic.lookup("jdbc/MyDS");
            System.out.println("Object is: " + obj + " | Class is: " + obj.getClass().getName());
            DataSource ds = (DataSource)obj;
            Connection conn = ds.getConnection();
            Statement stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("SELECT a,b FROM test");
            String ret = "";
            while(rs.next())
                ret += rs.getString(1) + " - " + rs.getString(2) + "<br/>";
            conn.close();
            return ret;
        catch(Exception e)
            return "Exception thrown: " + e.getClass().getName() + " -- " + e.getMessage();
    }On the server, it is set up as XADataSource. I don't really have a big need for distributed transactions, but does it hurt badly to use it anyways? Could it be causing this problem?

Problem in getting the database connection from a connection pool

Hai All,
I am facing a problem in getting the database connection from a connection pool created on weblogic server 8.1.
I am using the Oracle database 8.1.7.
I have configured my connection pool, datasource and JNDI in weblogic.
In my java program i have the following code to retrieve the connection.
import java.sql.*;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
class jdbcshp1 {
    public static void main(String[] args) {
     Connection connection = null;
     try {
           Hashtable ht = new Hashtable();
           ht.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory"); // Wanna get rid of this.
           ht.put(Context.PROVIDER_URL,"t3://localhost:7001"); // wanna get rid of this.
           // Get a context for the JNDI look up
           Context ctx = new InitialContext(ht);
        javax.sql.DataSource ds = (javax.sql.DataSource) ctx.lookup ("myjndi1");
          //Create a connection object
          connection = ds.getConnection();
     The above code is working fine but, the two ht.put statements are creating problem.
The problem is, after converting the application into WAR file it can be deployed
on any machine or different port on same machine. My application fails if its deployed on
weglogicserver which is at different port.
Is there any way that i can get rid of those ht.put statements or any other way to solve the problem.
any help is appreciated.
Thanks in advance
Pooja.

Hai All,
Firstly, thanks for ur reply.
Even i have seen some code which uses context constructor with out any parameter and works fine.
i dont understand why its not working for my code.
When i remove those ht.put code and use context constructor with out any parameter, it giving an error.
Context ctx = new InitialContext();
javax.sql.DataSource ds = (javax.sql.DataSource) ctx.lookup ("ocjndi");
connection = ds.getConnection();The error is as follows:
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
the above error is forcing me to include those code but if the port number is changed the code will not work. Plz let meknow if some setting have to be made.
I appreciate all ur valuable help.
Thanks once again.
Pooja.

Database connection Pooling in TOMCAT

I am trying Database connection Pooling in TOMCAT
I am getting the following error
org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null'
My Web.xml in $CATALINA_HOME\conf\web.xml
<resource-ref>
<res-ref-name>WMSPREF</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
and my server.xml in
$CATALINA_HOME\conf\server.xml
<ResourceParams name="WMSPREF">
<parameter>
<name>factory</name>
<value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
</parameter>
<parameter>
<name>driverClassName</name>
<value>oracle.jdbc.driver.OracleDriver</value>
</parameter>
<parameter>
<name>url</name>
<value>jdbc:oracle:thin:@10.94.100.148:1521:WMSPREF</value>
</parameter>
<parameter>
<name>username</name>
<value>wmsmigrate</value>
</parameter>
<parameter>
<name>password</name>
<value>abnwms</value>
</parameter>
<parameter>
<name>maxActive</name>
<value>20</value>
</parameter>
<parameter>
<name>maxIdle</name>
<value>10</value>
</parameter>
<parameter>
<name>maxWait</name>
<value>-1</value>
</parameter>
</ResourceParams>
And my database.jsp : code
     Context ctx = new InitialContext();
     Context envContext = (Context)ctx.lookup("java:comp/env");
     DataSource ds = (DataSource)envContext.lookup("WMSPREF");
     conn = ds.getConnection();

What version of Tomcat do you have? 4? 5? 5.5?
Have you defined a Resource entry in server.xml as well as the ResourceParams?
I have never had any luck configuring a datasource in the server.xml file.
What HAS worked for me is putting the config into a myWebApp.xml file.
My web context is "myWebApp"
The name of the file is "myWebApp.xml"
For Tomcat4 for this goes in the webapps directory
For Tomcat5 this goes in the [TOMCAT_HOME]/conf/Catalina/localhost directory
<?xml version='1.0' encoding='utf-8'?>
<Context path="/myWebApp" docBase="myWebApp" debug="1" reloadable="true" crossContext="true" >
<Resource name="WMSPREF" auth="Container"
              type="javax.sql.DataSource">
</Resource>
<ResourceParams name="WMSPREF">
<parameter>
<name>factory</name>
<value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
</parameter>
<parameter>
<name>driverClassName</name>
<value>oracle.jdbc.driver.OracleDriver</value>
</parameter>
<parameter>
<name>url</name>
<value>jdbc:oracle:thin:@10.94.100.148:1521:WMSPREF</value>
</parameter>
<parameter>
<name>username</name>
<value>wmsmigrate</value>
</parameter>
<parameter>
<name>password</name>
<value>abnwms</value>
</parameter>
<parameter>
<name>maxActive</name>
<value>20</value>
</parameter>
<parameter>
<name>maxIdle</name>
<value>10</value>
</parameter>
<parameter>
<name>maxWait</name>
<value>-1</value>
</parameter>
</ResourceParams>
</Context>Cheers,
evnafets

Tomcat5.0.28 connection pooling urgent plz.......................

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