CORBA 2.3.3 Administration Guide (NonStop CORBA 2.3.3+)

parameters by editing the nsdstart script rather than specifying each specific parameter through PATHCOM.
If you change global parameters by editing the relevant parameters in the nsdstart script, execute the script to
cold-start the TS/MP environment with the new parameters.
If you use PATHCOM to respecify all parameters, be sure to use the COLD start option of the SET PATHWAY
command to restart the TS/MP environment.
Reconfiguring Server Pools
Changing application requirements or performance queues can necessitate a reconfiguration of your server
resources. For example, you may find that one application server pool is handling many more requests than
expected while another does not receive the expected number of requests. One way to address this situation would
be to increase the maximum number of processes that can be started for the first server pool. A more complex
approach might be to review link access to the first server pool and modify link-related server attributes such as
LINKDEPTH and MAXLINKS.
For a discussion of these attributes and ways to use them to achieve successful load balancing across server
processes, refer to Load Balancing for Application Server Processes.
You do not need to shut down the environment to reconfigure server pools. Because editing and running the
nsdstart script requires a complete environment shutdown, reconfiguring server pools by using the appropriate
PATHCOM commands may be more efficient.
Adding a Server Pool
To add a server pool, use the SET SERVER and ADD SERVER commands. Then use the START SERVER
command to start the pool. For details about how to do this, refer to the nsdstart script.
Modifying Running Server Pools
To remove or alter a running server pool, you must:
Freeze the server pool1.
Stop the server pool2.
Delete or modify the server pool3.
Thaw the modified server pool4.
Start the modified server pool5.
Stopping a Runnng Server Pool
Before you can modify a running server pool, you must stop it. First, use the FREEZE SERVER command to
disable server communications with other processes in the environment. After a server pool is frozen, you can
stop it by issuing a STOP SERVER command.
For example, the following commands stop all server processes in server pool NS:
= FREEZE SERVER NS
= STOP SERVER NS