web server - Borland Technical Publications

Thread pools
The following code snippet shows how to deploy the custom MBean.
javax.naming.Context context = new javax.naming.InitialContext();
server = (MBeanServer)context.lookup("java:comp/env/jmx/MBeanServer");
// Create an ObjectName for the MBean
ObjectName name =
new ObjectName("qa:mbeanName=helloworld,mbeanType=Standard");
com.borland.enterprise.qa.mbeans.helloworld.HelloWorld hello =
new com.borland.enterprise.qa.mbeans.helloworld.HelloWorld();
server.registerMBean(hello,name);
// Invoke a method on it
server.invoke(name, "reloadConfiguration", new Object[0], new String[0]);
// Get an attribute value
Integer times = (Integer)server.getAttribute(name, "HowManyTimes");
Locating the JMX agent
If you are unsure whether the JMX agent is running, use one of the following methods
to locate it.
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Use osfind.
To achieve uniqueness, the name of the JmxAgent running inside a Partition is
derived as follows:
___JmxAgent
For example, a Partition with the following specs for each of the components:
___JmxAgent
will be registered with the following name in osagent:
ojms_RKHAWAJA2_openjms_JmxAgent
will show the following output on running osfind:
prompt% set OSAGENT_PORT=
prompt% osfind
osfind: Following are the list of Implementations started manually.
HOST: 172.20.20.53
REPOSITORY ID:
RMI:javax.management.remote.rmi.RMIServer:0000000000000000
OBJECT NAME: ojms_RKHAWAJA2_openjms_JmxAgent
Use the Borland Management Console.
When you right-click on the Partition, and choose Launch JMX Console, the feature
will only work if the JMX Agent is properly configured for the Partition and the
Partition is running.
Thread pools
Default thread pool
A Partition can process multiple concurrent application requests using Visibroker
thread and connection management. Threads are assigned to process application
requests from a thread pool configured through an entity called a server engine.
Several server engines, and hence thread pool configurations, are available in
Visibroker. By default, a Partition uses a thread pool for server engine IIOP.
Chapter 3: Partitions 25