Why is my total usage value not updating even though individual current readings are?

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Hi all,

I have a dashboard Visualizations that displays the current usage readings of several PDUs. The individual readings auto-update correctly, but the Total Usage value on the far right does not update even with auto-update enabled.

I've double-checked the auto-refresh settings, and even after waiting for several data changes, the total remains stuck until a manual refresh or page reload.

Does anyone know why the total usage is not updating automatically? Is there something I need to configure in the data source, aggregation, or visualization settings for this to work as expected?

Any tips or suggestions are appreciated.

Thanks!

Hari Ishwar Posted new comment 6 days ago
Ronald Gerard [SLC] [DevOps Advocate] commented

Hi Hari, can you tell us which data sources and operators you are using for these queries and on which DataMiner version you are using?

With the "Update data" setting enabled on all the components you should eventually always receive the updated value, otherwise we have a bug.

Note that when using the Aggregate operator, updates will not be real-time but should still refresh automatically every 30s if there was a change (See: https://docs.dataminer.services/dataminer/Functions/Dashboards_and_Low_Code_Apps/GQI/Query_updates.html#query-update-support).
Hari Ishwar commented

Source Data "Get Elements" and "Start From", Operator Filter and Aggregate Sum.

DataMiner Version:10.3.0.0 – 13999
Ronald Gerard [SLC] [DevOps Advocate] commented

The "Start From" data source will refer to another query with it's own data source and operators that will be relevant.
I assume it probably refers to a "Get Parameters for Elements where" data source that is then joined on your "Get Elements" data source?

The reason I'm asking is because most likely the data source you are using for the aggregated values does not support update notifications (see: https://docs.dataminer.services/dataminer/Functions/Dashboards_and_Low_Code_Apps/GQI/Query_updates.html#supported-data-sources)

If that's the case, we recommended using a Trigger component to automatically update the value (see: https://docs.dataminer.services/dataminer/Functions/Dashboards_and_Low_Code_Apps/Visualizations/Available_visualizations/General/Trigger.html).
Hari Ishwar commented

Hi Ronald, Thank you for the explanation and the helpful resources I appreciate the idea about using a Trigger component. That sounds like a good workaround, I’ll give that a try and see how it works with the current setup.