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# Manage monitors and load generators during a run

The following steps describe runtime options for managing monitor profiles, monitors over a firewall, and load generators during a performance test run.

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## Manage runtime monitors

You can add, edit, or remove currently running monitors during a performance test run.

Note:

- You can add new monitors and monitor agents to a running test but you cannot add existing monitor profiles to a running test. Any monitors that you add to the test or updates you make to existing monitors won’t affect the monitor profile, and are discarded after the test run.

- Monitors and Over firewall agents which are defined as part of a monitor profile but fail to run do not appear in the list of monitors.

- Default host monitors cannot be modified during runtime.

1. In the Performance Test Run page, click the Monitors tab and select Runtime Monitors. The Runtime Monitors grid opens, displaying a list of monitors that are currently running.

   The monitors that are displayed are a combination of the monitors from all the monitor profiles that were associated to the test, as well as a set of host monitors that are added automatically to every test for each host used in the test.

   For details on the grid and performing actions on monitor profiles, see View or edit monitor details.

2. To add a monitor to the performance test, click New Monitor , and select the monitor that you want to run. For configuration instructions, select the specific monitor in Monitors requiring configuration.

3. To add a monitor over firewall agent to the performance test, select Monitors Over Firewall, and select the monitor that you want to run. For details, see Create a monitor over firewall agent profile.

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## Change monitor over firewall status

You can change the status of a monitor over firewall machine during a performance test run.

1. In the Performance Test Run page, click the Monitors tab and select Monitors Over Firewall. The Monitors Over Firewall dialog box opens.

2. Select the machines that you want to change the status. To update multiple machines, you can select all, or clear all.

3. To connect or disconnect the selected monitor over firewall machines for the performance test, click Connect or Disconnect .

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## Manage load generators

You can perform the following actions with load generators during a performance test run: view status and machine utilization, connect and disconnect load generators, add load generators to the test, and configure terminal sessions.

1. On the Performance Test Run page, click Load Generators (available in the Graphs view, Groups view, and Transactions view). The Load Generators dialog box opens.

2. The load generator name, details, the platform on which the load generator is running, and current status are displayed in the grid. The possible statuses are:

   Active | The load generator is connected.
   Busy | The load generator is running Vusers.
   Disconnecting | The load generator is disconnecting.
   Down | The load generator is not connected.
   Failed | A connection with the load generator could not be established.
   Ready | The load generator is connected.

3. Select the load generators you want to edit. To update multiple machines, you can select all , clear all , or invert the selection (the non-selected load generators are selected, and the selected load generators are cleared).

4. To connect or disconnect the selected load generators for the performance test, click Connect or Disconnect .

5. To add load generators to a running performance test, click Add Load Generators . The Add Load Generators dialog box opens.

   You can perform the following actions:

   Add automatch load generators | Select Add X automatch load generators and enter the number of automatch load generators you want to add in the box.
   Add specific load generators | Select Add specific load generators and choose the load generators you want to add. The load generator table lists the specific load generators which are available, displaying the following information for each load generator: Name. The load generator name. State. The current state of the load generator: Operational, Non-Operational, or Unavailable. Purpose. The purpose of the load generator, that is, Controller, Load Generator, Data Processor, or a combination of these. Location. The location of the load generator. Host Attributes. Select attributes for the load generator. For details on defining custom attributes, see Customize load generator attributes.

   For details on different types of load generators, and how to distribute them to groups in a performance test, see Distribute load generators.

6. Configure terminal sessions during runtime

   To set or change terminal services settings for the load generator during runtime, click Terminal Session Settings . The Terminal Services dialog box opens.

   You can perform the following actions:

   Action | Description
   --- | ---
   Enable terminal services | Select Enable Terminal Services to apply the settings to the load generator running on the terminal server.
   Set the number of terminal services to open | In the Number of Terminal Services to open on Load Generator box, enter the number of terminals in your performance test to open on a load generator. Note: You must open a terminal session for each terminal on which you want to run Vusers during the performance test.
   Set the maximum number of Vusers to run | In Maximum number of Vusers to run in a Terminal Service box, enter the maximum number of Vusers that you want to run in a terminal session.
   Enable the Controller to launch terminal sessions automatically | To enable the Controller to launch terminal sessions automatically using the Remote Desktop Connection: Select Create new Terminal Services sessions. Enter the user name, password, and domain credentials required for automatic login. If you are using a custom user account, make sure you follow Run terminal sessions with a custom user account. Select the color depth of the session in the Bit Level box (15, 16, 24, or 32-bit level).

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See also:

- Run performance tests

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