Configuring Maximum Numbers of Sessions and
Users Allowed 
Use
You can improve system performance by limiting load generated by RTC collaborative sessions. Real Time Collaboration provides parameters that enable you to specify the following:
● The maximum number of instant messaging and application sharing session that can run concurrently
● The maximum number of users that are allowed per instant messaging and application sharing session
Before a new participant can join an existing RTC session (application sharing or instant messaging) or start a new session, the system first verifies if the maximum number of concurrent sessions or the maximum number of users for that particular session has been reached. If the user is allowed to join the session or start a new one and the session is an application sharing session, the system then also verifies if the maximum number of allowed threads in the J2EE Engine has been reached (see Configuring Thread Settings for Application Sharing Server (RTC)). In the event a session cannot be started or a user cannot participate in an existing session because of the set limitations, the user will be notified on the screen.
Procedure
1. In the portal, navigate to Content Administration ® Collaboration Content ® Collaboration Launch Pad Administration. Then, under Related Links, choose Configure Real-Time Collaboration ® RTC Engine ® RTCEngine.
Alternatively, you can navigate to System Administration ® System Configuration ® Collaboration. Then, under Folders, navigate to Collaboration ® Real-Time Collaboration (RTC) ® RTC Engine ® RTCEngine.
2. Configure the values of the following configuration objects, as needed. To edit an existing configuration object, select its checkbox, and then click Edit.
Certain
parameters are tagged as advanced parameters. To display advanced parameters
with the basic parameters, you need to switch the view of the configuration
editor. See 
Normal and Advanced
View in the Configuration iView.
Configuration Object (Parameter) |
Default Value |
Description |
MaximumApplicationSharing |
50 |
Specifies the maximum numbers of concurrent application sharing sessions permitted per cluster. |
MaximumChatSessions |
100 |
Specifies the maximum numbers of concurrent instant messaging sessions permitted per cluster. |
MaximumUsersPerApplication |
8 |
Specifies the maximum numbers users permitted per application sharing session. |
MaximumUsersPerChatSession |
8 |
Specifies the maximum numbers users permitted per instant messaging session. |
For information on configuration additional parameters in the RTCEngine topic, see Configuring the Polling Mechanism.