If you are considering migrating to a CAS-based record store data ingest model, the generate-dval-id-mappings task is a required step within a larger migration process.

This task is used to extract Forge-generated dimval IDs and convert them so that they can be loaded into a CAS-based dimension value id manager. If you do not perform this task, then you lose your dval state information, and all of your existing site URLs no longer work. In particular, inbound links, which get cached by external systems like internet search engines, point to the wrong pages.

A larger migration might look like the following:

After you have implemented and tested the changes to your upstream data integration logic, you can then deploy them to their various supported, non-development environments. As part of this step, you must deploy the new data application into each environment and redirect source systems. You must execute the generate-dval-id-mappings task to migrate all Forge-based dval ID mappings into the CAS-based dimension value ID manager.


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