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Bug

The Dissolve (Data Management) tool in ArcMap 10.2.1 split features that should be a single feature, even with 64-bit Background Geoprocessing.

Last Published: April 5, 2018 ArcGIS for Desktop
Bug ID Number BUG-000111920
SubmittedFebruary 23, 2018
Last ModifiedJune 5, 2024
Applies toArcGIS for Desktop
Version found10.2.1
Operating SystemWindows OS
Operating System Version2008 64 Bit
StatusKnown Limit

Additional Information

A lot of work went into the Dissolve tool after the 10.2.1 release resulting in more success with dissolving feature classes with large vertex counts (the example provided has more than 5 million) in particular when using 64bit products (BG64, Server, Pro). These changes cannot be ported back to earlier releases. It may be that having enough available memory when running in BG64 in 10.2.1 gets the Dissolve tool to dissolve to 1 feature. Please check that you have more than 2GB of available memory (memory not in use) before running this dissolve operation using BG64. Do not have anything else running on the machine before or during the Dissolve operation. Workaround 1 (may not work for slightly larger vertex counts. Could run out of memory.): Use the Editor Merge tool on the output of Dissolve. Workaround 2: Need to simplify the input (reduce number of vertices) and then run the Dissolve tool. See the SimplifyPolygon tool under the Cartography toolset.

Workaround

The features can be dissolved into one by using either ArcGIS Pro or ArcMap 10.3+ with 64-bit Background Geoprocessing installed.

Steps to Reproduce

Bug ID: BUG-000111920

Software:

  • ArcGIS for Desktop

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