[galaxy-dev] Connection reset by peer

Hello, i'm actually having a message of "connection reset by peer" when i'm launching a long API request (upload files only links actually, run the workflow other them and retrieve the results into a specific folder). The workflow is working fine when i proceed to an analysis file by file but when it comes to several file processing (like 10 or more), this exception appear. I'm working with Bioblend on a local instance with a postgres SGBD. I've perfom the database performance enhancement you suggest for production mode. But right know i don't have any Apache or Nginx server. Is that mandatory ? Thanks in advance for your help. Best regards. HC.