I set up a NetCDF image mosaic using the store-based auxiliary index (StoreName config)
The first granules harvest, on store creation, works: I have correct main and auxiliary indexes in the PostGis tables.
When trying to harvest a new mosaic granule via REST, the operation fails.
curl -v -u admin:geoserver -H "Content-type: text/plain" -d "file:/full/path/to/netcdf_file.nc" "http://localhost:9080/geoserver/rest/workspaces/test_workspace_name/coveragestores/test_store_name/external.imagemosaic"
GeoServer log as follows: