Citrix XenApp Data Collector Process

When you create a server farm and whenever a new server joins a zone, a server is elected as the data collector for that zone. If the data collector for the zone becomes unavailable, a new data collector is elected for the zone based on a simple ranking of servers in the zone.
Important: A primary domain controller or backup domain controller must not become the data collector for a zone. This situation may arise if XenApp is installed on Windows domain controllers. Citrix does not recommend such installations.

 To set the data collector election preference of a server


  1. Depending on the version of XenApp you have installed:
  • From the Start menu, open All Programs > Citrix > Administration Tools and choose XenApp Advanced Configuration.
  • From the ICA toolbar, open the Presentation Server Console.
  1. Select the farm.
  1. On the Actions menu, click Properties.
  1. Select Zones.
  1. In the list of zones and their servers, locate the server, select it, and click Set Election Preference.
  1. Select the ranking for the server by choosing from the following election options:

  1. Important: If you change the server name of the data collector, the new server name is added to the list of servers in the farm. The old server name is still listed as a member of your farm and must be removed using the Access Management Console. Before removing the old server name, you must update the data collector ranking for the new server name.

Most Preferred
Preferred
Default Preference
Not Preferred
  1. The server is always the first choice to become the data collector. It is recommended that only one server per zone be given this setting.
    When electing a new data collector, XenApp elects the next collector from the Preferred servers if the Most Preferred server is not available.
    The default setting for all servers. The next collector is selected from the Default servers if neither a Most Preferred server nor a Preferred server is available.
    Apply this setting to servers that you do not want to become the data collector for the zone. This setting means that this server becomes the data collector only when no servers are available with any of the other three settings (Most Preferred, Preferred, Default Preference).

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