12.3 Managing the Group Scheduling Engine Queue for Calendar Server Version 6.3

This section contains conceptual information and instructions for managing the Group Scheduling Engine (GSE)

The GSE keeps a queue of events that will be used to update the component database. An administrator can change the timeout value to adjust the time between Calendar Server scans of the queue. Events in the queue can also be listed and specific events deleted if necessary.

This section contains the following topics:

• 12.3.1 About GSE for Calendar Server Version 6.3

• 12.3.2 About the Calendar Server 6.3 GSE Queue

• 12.3.3 Listing Entries in the Calendar Server 6.3 GSE Queue

• 12.3.4 Deleting Entries in the GSE Queue in Calendar Server Version 6.3

12.3.1 About GSE for Calendar Server Version 6.3

The GSE allows a Calendar Server user to create events and invite other attendees. If an attendee is on the same Calendar Server, the event is scheduled in the attendee’s calendar. If an attendee is not on the same Calendar Server, the invitation is sent via email. The attendee can then accept or decline the invitation and the GSE will update the event with the reply.

12.3.2 About the Calendar Server 6.3 GSE Queue

The GSE queue is in reality a separate database managed by the csadmind process Calendar Server scans the queue for updates that need to be made to the components database.

You can tune Calendar Server by adjusting the frequency of this scan. This is accomplished by changing the timeout value of gse.belowthresholdtimeout in the ics.conf file. See Chapter 21, Tuning Calendar Server Performance.

The GSE queue entries can be managed (listed and deleted) using csschedule. You must run csschedule on the local machine where Calendar Server is installed.

12.3.3 Listing Entries in the Calendar Server 6.3 GSE Queue

To list entries in the GSE queue, use the csschedule utility list command.

For example, to list all entries in the GSE queue:

csschedule list

To list the first ten entries stored in the GSE queue:

csschedule -c 10 list

To list all entries in the GSE queue for a calendar with the calid Holiday_Schedule:

csschedule -v list Holiday_Schedule

12.3.4 Deleting Entries in the GSE Queue in Calendar Server Version 6.3

To delete entries in the GSE queue, use the csschedule utility delete command.

For example, to delete all entries in the GSE queue:

csschedule -v delete

To delete the entry in the GSE queue for calendar calA with the first schedule time of 13:30:45 on 11/30/2001, an offset number of 1, the unique identifier 1111, the recurrence ID 0, and the sequence number 0:

csschedule -v -t 20011130T133045Z -o 1 -u 1111 -r 0 -n 0 delete calA