SP Metadata File Reloading

[Peter Schober]

* Nate Klingenstein <ndk at sudonym.me> [2018-08-31 05:50]:
> I'm trying to load IdP metadata entries that have been added to a file and
> then use them within a minute of their addition to the file, but lookup for
> the entity fails.  Session initiation does work a minute or two after the
> addition to the file.
> 
>         <MetadataProvider type="XML" reloadChanges="true" path="/var/md/test.xml"/>

Did you try types Folder or Dynamic for comparison?
Folder does not reload changes IIRC, so that's only workable if the
metadata doesn't change after deployment to the SP.
So Dynamic is probably your best bet.
-peter