[GeoNetwork-users] Cannot harvest from Thredds correctly

Hi all, I am a new Geonetwork user and I'm setting up a platform to display
meteorological data related to an Italian region.

I have succesfully installed Geonetwork on tomcat6 on a CentOS server and
I'm setting up an harvester to a Thredds catalog.
However, I can't succeed in harvesting data with the option "Extract
Unidata dataset discovery metadata using fragments" (the dropdown "Select
template to combine with fragments" is always empty). I tried loading
metadata as described in the documentation. I also tried to copy the
harvester templates from WEB-INF/data/config/schema_plugins/convert/* into
the /xml/schemas/iso19139/convert/* but it didn't work. Has anyone
harvested from a big repository of meteorological data (mostly Netcdf/Grib
from WRF model)?

Also, the catalog contains many different data sources so I'd like to
organize them hierarchically, and for that I have some additional
infomation in a separate PostgreSQL database. Ex. 2 entries in the Thredds
catalog have the same tag that is written in the Postgres database. What's
the best way to integrate metadata from the two sources?

Many thanks,
Chiara
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Chiara Scaini