Have a transaction propagated to two remote machines!!!(URGENT!!!)

          Can we have a transaction propagated to two ejb's in different machines if we have database interaction in both?
          I tested it out with Account beans (examples)
          deployed on two different(remote) servers both servers having the same connection pool name and the mapping to the
          same oracle database (Using the oracle thin driver as well as the Weblogic Driver). One of the beans is in a local server and one in a remote server and both are accessed in the
          same transaction context. What happens is that the 2nd bean accessed throws a Null pointer Exception
          when it tries to getConnection().
          This is the server side stack trace -----
          SQLException: java.sql.SQLException: java.lang.NullPointerException:
          Start server side stack trace:
          java.lang.NullPointerException
          at weblogic.jdbc.common.internal.ConnectionMOWrapper.<init>(ConnectionMO
          Wrapper.java:42)
          at weblogic.jdbc.common.internal.ConnectionEnv.setConnection(ConnectionE
          nv.java:142)
          at weblogic.jdbc.common.internal.DriverProxy.execute(DriverProxy.java:17
          3)
          at weblogic.t3.srvr.ClientRequest.execute(ClientContext.java:1030)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled Code)
          End server side stack trace
          It appears that when the database call on the 2nd WL server is routed to the first WL server(the server that established the first connection for the transaction) for the database connection it is not able to find the connection( and hence the bombing). I'm going nuts over this for two days. Please help. We need to use Weblogic for our project and i need to confirm that this functionality works!!!!
          I'm attaching the stateless bean code which accesses both these beans.
          [TraderBean.java]

          Hi,
          Are you using cluster?
          Definitely you can be in one transaction if you just access one data source. that's two phase transaction.
          "kartik" <[email protected]> wrote:
          >
          >
          >
          >Can we have a transaction propagated to two ejb's in different machines if we have database interaction in both?
          >
          >I tested it out with Account beans (examples)
          > deployed on two different(remote) servers both servers having the same connection pool name and the mapping to the
          > same oracle database (Using the oracle thin driver as well as the Weblogic Driver). One of the beans is in a local server and one in a remote server and both are accessed in the
          > same transaction context. What happens is that the 2nd bean accessed throws a Null pointer Exception
          > when it tries to getConnection().
          >
          >This is the server side stack trace -----
          >SQLException: java.sql.SQLException: java.lang.NullPointerException:
          >Start server side stack trace:
          >java.lang.NullPointerException
          > at weblogic.jdbc.common.internal.ConnectionMOWrapper.<init>(ConnectionMO
          >Wrapper.java:42)
          > at weblogic.jdbc.common.internal.ConnectionEnv.setConnection(ConnectionE
          >nv.java:142)
          > at weblogic.jdbc.common.internal.DriverProxy.execute(DriverProxy.java:17
          >3)
          > at weblogic.t3.srvr.ClientRequest.execute(ClientContext.java:1030)
          > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled Code)
          >End server side stack trace
          >-----------------
          >
          >It appears that when the database call on the 2nd WL server is routed to the first WL server(the server that established the first connection for the transaction) for the database connection it is not able to find the connection( and hence the bombing). I'm going nuts over this for two days. Please help. We need to use Weblogic for our project and i need to confirm that this functionality works!!!!
          >
          >I'm attaching the stateless bean code which accesses both these beans.
          >

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roopesh wrote:
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The connection is persistent and is not request based.
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"YANG YI" <[email protected]> wrote:
We want to locate our servers(services) onto different machines, we want
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you just need to install wls and configure the domain there on that machine
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          will get its configuration from there. better yet, if you have a shared
          installation use that.
          "Girish" <[email protected]> wrote in message
          news:[email protected]...
          >
          > Hi,
          > How to run a clustered setup in remote machines??
          >
          > This is my setup:
          > I have a domain called mydomain
          > I have three server instances Adminserver, ManagedServer1 and
          ManagedServer2.
          > I have a cluster called cluster1 with two servers , (ManagedServer1 and
          ManagedServer2).
          > I have two machines, machine1(localhost) and machine2(remote machine
          connected
          > to LAN).
          > My machine1 has two servers , Adminserver, ManagedServer1 and
          > My machine2 has one server ManagedServer2.
          >
          > I have installed weblogic 8.1 in both the machines.
          > I have started nodemanager in machine1 .
          > Iam able to run Adminserver and Managedserver1 in machine1(localhost)
          >
          > My question:
          > 1. I have to run the managedserver2 in the remote machine.
          > 2. Should i create a domain of the same name called mydomain in
          machine2(remote
          > machine)???
          > 3. Already nodemanager is running in machine1.............Should i run
          nodemanager
          > in machine2(remote machine) also ???
          > 4. What should be my configuration parameters (Java home, bea
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          >
          > thanks&rgds,
          > girish

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Any advice on this one? I did modify the security / firewall to except IChat
2009-01-04 19:42:44 -0600: No data has been received for the last 10 seconds.
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Click on yours.
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//Transmitter
package lsf.telphony.test;
import java.io.IOException;
import java.util.Vector;
import javax.media.CannotRealizeException;
import javax.media.CaptureDeviceInfo;
import javax.media.CaptureDeviceManager;
import javax.media.DataSink;
import javax.media.Format;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.NoDataSinkException;
import javax.media.NoDataSourceException;
import javax.media.NoProcessorException;
import javax.media.NotRealizedError;
import javax.media.Processor;
import javax.media.ProcessorModel;
import javax.media.format.AudioFormat;
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import javax.media.protocol.DataSource;
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import javax.media.*;
import javax.swing.*;
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import java.awt.event.*;
import java.io.*;
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          if (player != null)
               player.stop();
               player.close();
     public static void printUsage()
          System.out.println("Usage: java MediaPlayerFrame mediaLocator");
     public void run()
          try
               MediaReceiver mpf = new MediaReceiver();
               mpf.setMediaLocator(new MediaLocator("rtp://192.168.2.2:10000/audio"));
               mpf.show();
          } catch (Exception t)
               t.printStackTrace();
     public static void main(String[] args) { // Loads pastry settings
          MediaReceiver mediaReceiver = new MediaReceiver();
          Thread mediaReceiverThread = new Thread(mediaReceiver);
          mediaReceiverThread.start();

By the way the program does not terminate immediately after starting it. According to your advice I tried removing running it inside in a thread and making it sleep at several points appropriate. No luck.
I wonder why packets are not sending even the program is running until the end of the line with no exception.
Have you tried to capture RTP packet traffic with Wireshark or similar kind of network analyzing software with this kind of program?
I am doubt whether my program is actually transmitting packets but unable to capture those due to the error with transmitter.
Even with the Wireshark It does not capture outgoing packets.
And another thing I noticed with netstat is it shows two pots get opened when running the application but those ports are not the one I note in the program.
For example I run the program with port number as 10000 (sink: setOutputLocator rtp://192.168.2.104:10000/audio). But when I check it with netstat some other ports are open.
i.e
nuwan@nuwan-laptop:~/eclipse$ netstat -anup
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
udp 0 0 0.0.0.0:68 0.0.0.0:* -
udp 0 0 0.0.0.0:40526 0.0.0.0:* -
udp 0 0 0.0.0.0:5353 0.0.0.0:* -
udp6       0      0 127.0.1.1:28864         ::: 10772/java*
udp6       0      0 127.0.1.1:28865         ::: 10772/java*
nuwan@nuwan-laptop:~/eclipse$
And each time when I start the program these two ports are changed also.
And foreign address is not shown ? Any comment for that??
Is there anything that can be drawn from above information which caused for not working my program.
This is killing me. And also making me sharper. And I cant leave this behind also. So highly appreciate you time and help.
Thanks.

Have a transaction propagated to two remote machines!!!(URGENT!!!)

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