Question

I have a datasource targeted to a cluster with two weblogic managed servers i.e 239.112.112.47:8001 and 239.112.112.48:9001

The datasource has deafult max capacity for the connection pool set to 15.

Thus, I am expection a total of 15*2=30 connections.

However, my client code gets only 15 connections that too on a single server(239.112.112.47:8001) and not on both servers of my cluster.

Below is my code:

public static void main(String ar[])throws Exception
{
InitialContext ic=null;
try{
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
env.put(Context.PROVIDER_URL, 239.112.112.47:8001);
ic = new InitialContext(env);
}
catch(Exception e){
System.out.println("\n\n\t Unable To Get The InitialContext => "+e);
}
Connection con[]=new Connection[100];
try{

for(int i=0;i<100;i++)
{
   DataSource ds=(DataSource)ic.lookup("MyDS");   //Enter your DataSource or MultidataSource JNDI name Here
   con[i]=ds.getConnection();
   System.out.println("\n\n\t GOT CONNECTION con["+i+"]: "+con[i]);
   Thread.sleep(1000);
}

Answer 1

It sounds like you have one of these issues:

1. Your datasource is targeting a single managed server instead of the cluster
2. Your cluster has a single member instead of both of the managed servers
3. Your load balancer is directing traffic to a single node within the cluster