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Bug

The Find Hot Spots tool takes too long or fails when a large CSV file is added directly to ArcGIS Online Map Viewer Classic (Add > Add layer from File).

ArcGIS Online
Bug ID Number BUG-000155814
SubmittedFebruary 13, 2023
Last ModifiedAugust 11, 2025
Applies toArcGIS Online
Version foundN/A
Operating SystemWindows OS
Operating System Version10.0 64 Bit
StatusKnown Limit

Additional Information

Large CSVs take a long time to load for analysis. Publish the layer when possible. The documentation will be updated to improve recommendations.

Workaround

  • Publish a hosted feature service and run the analysis on the feature service.
  • Use ArcGIS Pro, if feasible.

Steps to Reproduce

Bug ID: BUG-000155814

Software:

  • ArcGIS Online

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