Tableau Usage Data Q&A

In addition to auto-discovering all resources in a Tableau instance, Euno also tracks the usage history of these resources.

Utilize the usage history of Tableau resources to:

1. Remove or archive resources that are no longer in use within your organization.

2. Identify frequently used resources that require attention.

Understanding the different types of usage information for Tableau resources

Euno tracks two types of access records, to associate two types of usage information to Tableau resources.

1. Query records - a query record is generated every time an event in Tableau triggers a query to the underlying data warehouse.

2. Impression records - an impression record, also known as Access Event in Tableau, is generated every time a user opens a Tableau Dashboard or Tableau View in Explore mode.

To observe impression data, follow Tableau Cloud Impression Data Setup

Understanding the difference between these records is key to accurately identify resources for different use-cases

1. Use Query Records data when data warehouse cost, database load, and data latency are driving your project. The query records accurately reflect the actual workloads submitted to the database by tableau, annotated with the resource that is responsible for the workload.

2. Use Impression Records when popularity and organization adoption and driving your project. The Impression Records accurately reflect how much each Tableau Resource is actually being used in the organization.

Why do the Query Records and Impression Records not show exactly the same data?

There are many reasons why the the Query Records and Impression Records do not show exactly the same data:

1. When a Tableau Datasource is configured to use Extracts, then an impression will not lead to a query against the warehouse. Moreover, if the Extract is configured to refresh automatically on a schedule, then Query Records will be generated regardless of any impressions.

2. When a Tableau Resource is edited, a query will be submitted to the warehouse on every change, but only one or none Impressions Records will be generated.