simultaneous upload/download of files seems to break
then running a session with multiple nodes, some node do not download the model files.
(quick and dirty) workaround:
- nodes wit a random delay (between1 and 5 seconds) then downloading data
Need more investigation, probably on REST server:
- verify if it is multi-threaded
- technology change
- etc...
Another clue is that two (or more) nodes running on the same host (in development environment) may interfer then downloading file from REST, because the local file (after download) has the same path for all nodes...