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Home > Success Center > Web Help Desk (WHD) > Web Help Desk Administrator Guide > Appendix > Configure multiple instance Tomcat daemons

Configure multiple instance Tomcat daemons

Created by Steve.Hawkins, last modified by Anthony.Rinaldi on Jul 18, 2016

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You can configure multiple instance Tomcat daemons by editing the tomcat_web_template.xml file located at:

<WebHelpDesk>/conf

For multiple-instance Web Help Desk installations, use the following guidelines:

  • Configure one instance to provide either dedicated or background daemon services. Having more than one instance provide daemon services can result in duplicate tickets and unnecessary use of system resources.
  • Set the single daemon instance to either dedicated or background. Set the remaining instance to none.
  • Ensure that all but one instance is running without daemon services.

    For example:

    WHDDaemonMode=none

Configuration options

When you configure your daemon settings, use the following options:

  • Dedicated. The Web Help Desk installation instance functions only as a daemon, and the login page is disabled.
  • Background. The Web Help Desk instance functions as a daemon, but users can also log in to it.
  • None (default). The Web Help Desk instance does not execute daemon tasks.

To configure a multiple instance installation, set the memory, the Tomcat deployment descriptor, and the WebObjects daemon mode.

You can configure only one Web Help Desk instance to run as the daemon—either in dedicated or background mode. SolarWinds recommends running the instance in background mode so that it can be restarted when required on a more frequent basis than the front-end instances without interfering with the front-end application.

Memory allocation

Allocate at least 256MB of RAM to your daemon processes. If the Web Help Desk DaemonMode parameter is set to background, allocate an additional 256MB RAM beyond the amount allocated to other instances. This RAM configuration will support the daemon services memory resources in addition to supporting the application user interface.

See the following sections to set the daemons required for multiple Tomcat instances:

 
Last modified
15:15, 18 Jul 2016

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