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Refresh summaries for Power BI

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The Power BI Refresh summary page, found in the Power BI Admin portal, provides control and insight into your refresh schedules, capacities, and potential refresh schedule overlaps for your Power BI Premium capacities. You can use the refresh summary page to determine whether you should adjust refresh schedules, learn error codes associated with refresh issues, and properly manage your data refresh scheduling.

The refresh summaries page has two views:

  • History. Displays the refresh summary history for Power BI Premium capacities for which you're an administrator.
  • Schedule. Shows the schedule view for scheduled refresh, which also can uncover issues with time slots that are oversubscribed.

You can also export information about a refresh event to a .csv file, which can provide significant information and insight into refresh events or errors that can be impacting the performance or completion of scheduled refresh events.

The following sections look at each of these views in turn.

Refresh history

You can select the History view by clicking on History in the refresh summaries page.

Screenshot shows the History view in Refresh summary in the Power BI admin portal.

The History provides an overview of the outcomes of recently scheduled refreshes on the capacities for which you have admin privilege. You can sort the view by any column by selecting the column. You can choose to sort the view by the column selected by ascending order, descending, or by using text filters.

Screenshot shows the Sort ascending, Sort descending, and text filters options for column headers.

In history view, the data associated with a given refresh is based on up 60 most recent records for each scheduled refresh.

You can also export information for any scheduled refresh to a .csv file, which includes detailed information including error messages for each refresh event. Exporting to a .csv file lets you sort the file based on any of the columns, search for words, sort based on error codes or owners, and so on. The following image shows an example exported .csv file.

Screenshot shows an example export file.

With the information in the exported file, you can review the capacity, duration, and any error messages recorded for the instance of refresh.

Refresh schedule

You can select the Schedule view by selecting Schedule in refresh summaries. The Schedule view displays scheduling information for the week, broken down into 30-minute time slots.

Screenshot shows the schedule tab of the Refresh schedule page in close up.

The Schedule view is very useful in determining whether the refresh events scheduled are properly spaced, allowing for all refreshes to complete without overlap, or whether you have scheduled refresh events that are taking too long and creating resource contention. If you find such resource contention, you should adjust your refresh schedules to avoid the conflicts or overlap, so your scheduled refreshes can complete successfully.

The Refresh time booked (minutes) column is a calculation of the average of up to 60 records for each associated semantic model. The numeric value for each 30-minute time slot is the sum of minutes calculated for all scheduled refreshes scheduled to start on the time slot and any scheduled refreshes set to start on the previous time slot, but whose average duration overflows into the time slot that's selected.

The Refresh time available (minutes) column is a calculation of the minutes available for refresh in each time slot, minus whatever refresh is already scheduled for that time slot. For example, if your P2 subscription provides 80 concurrently running refreshes, you have 80 30-minute slots, so 80 refreshes x 30 minutes each = 2,400 minutes available for refresh in that time slot. If you have one refresh booked in that slot that takes 20 minutes, your Refresh time available (minutes) in that slot is 2,380 minutes (2,400 total minutes available, minus 20 minutes already booked = 2,380 minutes still available).

You can select a time slot and then select the associated details button to see which scheduled refresh events contribute to the refresh time booked, their owners, and how long they take to complete.

Let's look at an example, to see how this works. The following dialog is displayed when we select the 8:30 PM time slot for Sunday, and select details.

Screenshot shows details for the refreshes for a selected time.

There are three scheduled refresh events occurring in this time slot.

Scheduled refresh #1 and #3 are both scheduled for this 8:30 PM time slot, which we can determine by looking at the value in the Scheduled time slot column. Their average durations are 4:39 and six seconds (0:06) respectively. All is good there.

However, scheduled refresh #2 is scheduled for the 8:00 PM time slot, but because it takes an average of over 48 minutes to complete (seen in the Average duration column), that refresh event overflows into the next 30-minute time slot.

That's not good. The administrator in this case should contact the owners of that scheduled refresh instance and suggest they find a different time slot for that scheduled refresh, or reschedule the other refreshes so there's no overlap, or find some other solution to prevent such overlap.

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