https://bugs.kde.org/show_bug.cgi?id=503910

            Bug ID: 503910
           Summary: "Image Fingerprints have not been generated" error
                    message, but I've tried 5 times
    Classification: Applications
           Product: digikam
           Version: 8.6.0
          Platform: Microsoft Windows
                OS: Microsoft Windows
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Database-Engine
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Created attachment 181056
  --> https://bugs.kde.org/attachment.cgi?id=181056&action=edit
Image fingerprints have not yet been generated for your collection

SUMMARY:
There is no "button" to generate a fingerprints database. 
I've tried the button to "Update" the fingerprints DB and the button to
"Rebuild" the fingerprints DB. But apparently, the Fingerprints DB never gets
"Generated".
Is there a button to "Generate" the fingerprints database?
And if the Update and Rebuild are interchangeable and will Generate the initial
fingerprints database, is there something I should be looking at on the remote
MySQL server?

STEPS TO REPRODUCE
1. Run the "Update fingerprints" in the "Similarities" tab on the left toolbar.
All 12 i7 cores run up to 100% CPU utilization and stay at 100% for 3 to 4 days
with the fans running.
2. There is little to no activity on the remote MySQL server during this time.
3. When the there is "No active process" displayed on the bottom right of the
digiKam window, the error message does not come back when I click on
Similarities, but the app will become unresponsive and one of the CPU cores
goes to 100% for 30 seconds to a minute.
4. After a while, when I go back to the Similarities tab, the error message
comes back

OBSERVED RESULT: No Similarities or Tags

SOFTWARE/OS VERSION
WIndows 11 

ADDITIONAL INFORMATION
Remote docker based MariaDB MySQL server
All images are on NAS

Google search takes me to the digiKam manual's page for "Maintenance Tools" >
"Rebuild Fingerprints", but that page actually shows a graphic of the left
side-toolbar for "Similarities" to "Update" the fingerprints.
Regardless, using either of these run for between 3 and 4 days, and when it
finishes the error message 
"Image fingerprints have not yet been generated for your collection. The
Similarities Search Tools will not bet operational without pre-generating
fingerprints. Please generate the fingerprints first" still pops up the next
time I try to check Similarities.

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