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Performance issues while loading data to Tableau where the source is Denodo

We are facing poor performance issue in Tableau as it is taking much longer time (handshaking and metadata exploration) than expected before it pulls the data from Denodo via JDBC connection. Please suggest how we can carry out performance tunning and at what level. Appreciate for your help and support.
13-07-2021 03:44:15 -0400

1 Answer

Hi, These performance issues could come from a variety of places. One simple thing I would do is just compare the execution times in the VDP admin tool of different queries to see whether certain data operations or sources seem to be slowing things down. I also might take a look at the execution trace in the VDP Admin tool to see if the queries are running as expected for example if the cache is being used when expected. Third party monitoring tools are also an option I might try for looking at the queries. In addition, I would look over the Performance Considerations section in the [Tableau and Denodo Best Practices]( article in the Denodo knowledge base. I would also look at the [Best Practices to Maximize Performance IV: Detecting Bottlenecks in a Query]( article in the Denodo knowledge base. This article walks through how to go about detecting bottlenecks and how to solve them on the Denodo side of things. If you have a valid support user account, please open a new support case at so that the support team can review the issue in detail. Hope this helps!
Denodo Team
13-07-2021 12:29:37 -0400
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