Administrator's Guide

Configuration
Enabling Large Numbers of Agents
Chapter 2
31
Enabling Large Numbers of Agents
If you have more than about 20 agent systems, you may have to modify a kernel
parameter and/or a network parameter. The procedures are described below in the
sections:
• “Enabling Over 23 Agents (Thread Limits)” on page 31
• “Enabling Over 20 Inbound Requests” on page 32
Enabling Over 23 Agents (Thread Limits)
You need to ensure that the administration system provides enough threads per process
to handle the maximum number of agent systems you will monitor at one time. This
value is specified by the tunable kernel parameter max_thread_proc. You can compute
its minimum value from the formula:
max_thread_proc = 2 * num_agents + 18
where num_agents is the number of agent systems to be monitored.
By default, max_thread_proc is set to its minimum value, 64, which allows for 23
agents. The maximum value of max_thread_proc is governed by the configurable kernel
parameter nkthread, which you may need to increase if you have a larger number of
agents.
NOTE max_thread_proc became a dynamic tunable in HP-UX 11i version 1.6. In prior
systems, a change to it will require a reboot.
To change the value of max_thread_proc
NOTE In HP-UX 11i version 2, the modification of kernel tunables and kernel configuration
was moved from SAM to the kcweb system configuration interface. Please see Managing
Systems and Workgroups: A Guide for HP-UX System Administrators for details.
Step 1. Run sam, the HP-UX System Administration Manager (SAM)
Step 2. Select Kernel Configuration
Step 3. Select Configurable Parameters
Step 4. Highlight max_thread_proc
Step 5. Select Actions > Modify Configurable Parameter
Step 6. Enter your new value in the Formula/Value box
Step 7. Choose OK. Your new value shows in the Pending column.
Step 8. Select File > Exit.