Hi,
You could consider switching from dhus (which is the implicit query source in SciHub plugin) to apihub. It seems that dhus introduced recently some limitations on the number of queries that can be performed in a certain amount of time, limitation that is not in apihub. To do this, you could check this link:
Concerning your questions:
- Please note that these settings are set taking into account a variety of possible configurations (ex. running in NRT, having local products in a network share that might fail from time to time etc.)
- This is related to the first point. Anyway, as they are configurable values, you can tune them as you prefer. Also, if you do not change the maximum connexions (and let them 1 for scihub) there should be no problem as the maximum allowed connections on SciHub is 2.
- The retries are made for 3 days for a product before giving up and marking it as aborted (72x60 minutes).
- The system is implemented as a plugable architecture (also based on sen2agri_ and some future components might also support other satellites images. The queries are paginated as not all datasources allow to get all the products once. Concerning the actual products to download is a little bit complicated due to the various use cases (for example, user can have a site that intersects 100 S2 tiles but he wants to filter to only 1 tile). Noop are usually given by the S1 pre-processing when there is no product to be processed.
Best regards,
Cosmin