I am not sure about version 10 yet but in the version 9.x, I expect you to see the below error when you try to trigger the job manually while the schedule is still running.
- com.tableausoftware.model.workgroup.util.ConcurrentUpdateDuringRefreshException: Refresh Extracts Error
Refresh failed because the workbook was overwritten by another task during processing. Submit refresh again to correct.
The schedules will not skipped. It's because there could be so many jobs in pending state that the next to-be run job(10 AM) is in queue waiting for its turn. In this scenario, the "next update" time will change to 12 PM eventhough the 10 AM is still in pending state.
I would say to change the frequency to every 4 hours and check it out as scheduling a 3 hour run time job to run every 2 hours does not help the cause. This will also degrade the performance as multiple sessions are created to hit the same set of tables.
I am also facing same issue. the Dashboard was scheduled daily 4 hours. For every 3rd run and 5th run it is failing. previously it ran successfully.
we are using version:10.0
time limit for all the refreshes at our server level: 3hrs
Size of Extract :5.4MB
what happens if another extract is scheduled at the same time?
If not what is the Root Cause for it?
which parameter depends upon extract running??
please suggest me a solution for this.