Commit Graph

6 Commits

Author SHA1 Message Date
Moby von Briesen
789b07e226 storagenode/orders/store.go: Do not return error from ListUnsentBySatellite when order files are corrupted.
If we see an UnexpectedEOF error when attempting to read orders, return
the orders we have been able to read successfully and do not return an
error. This behavior ensures that the storagenode orders service
attempts to archive corrupted files and does not retry them repeatedly
and get stuck.

Change-Id: I0d00d1e174f968af6e99ca861eddad190f1339e2
2020-09-10 23:36:05 +00:00
Jeff Wendling
91698207cf storagenode: live tracking of order window usage
This change accomplishes multiple things:

1. Instead of having a max in flight time, which means
   we effectively have a minimum bandwidth for uploads
   and downloads, we keep track of what windows have
   active requests happening in them.

2. We don't double check when we save the order to see if it
   is too old: by then, it's too late. A malicious uplink
   could just submit orders outside of the grace window and
   receive all the data, but the node would just not commit
   it, so the uplink gets free traffic. Because the endpoints
   also check for the order being too old, this would be a
   very tight race that depends on knowledge of the node system
   clock, but best to not have the race exist. Instead, we piggy
   back off of the in flight tracking and do the check when
   we start to handle the order, and commit at the end.

3. Change the functions that send orders and list unsent
   orders to accept a time at which that operation is
   happening. This way, in tests, we can pretend we're
   listing or sending far into the future after the windows
   are available to send, rather than exposing test functions
   to modify internal state about the grace period to get
   the desired effect. This brings tests closer to actual
   usage in production.

4. Change the calculation for if an order is allowed to be
   enqueued due to the grace period to just look at the
   order creation time, rather than some computation involving
   the window it will be in. In this way, you can easily
   answer the question of "will this order be accepted?" by
   asking "is it older than X?" where X is the grace period.

5. Increases the frequency we check to send up orders to once
   every 5 minutes instead of once every hour because we already
   have hour-long buffering due to the windows. This decreases
   the maximum latency that an order will be reported back to
   the satellite by 55 minutes.

Change-Id: Ie08b90d139d45ee89b82347e191a2f8db1b88036
2020-08-19 19:42:33 +00:00
Moby von Briesen
708cb48aa6 storagenode/orders: implement orders filestore on storagenode
* Add all new orders to the orders filestore instead of the database.
* Submit orders from the filestore to the new satellite SettleWindow
endpoint.

The orders filestore will eventually replace the orders DB completely.
For now, we will still be checking the orders DB and submitting those
orders if they exist. In a later release, we will completely remove the
orders DB, but we need both the DB and filestore for the transitionary
period.

Change-Id: Iac8780fd5ab770296181bbd313e1d335f072d4dc
2020-08-19 15:00:35 +00:00
Moby von Briesen
1b807761bd storagenode/orders: Update orders filestore to be compatible with new satellite endpoint
* Instead of archiving a list of orders and deleting an "unsent" file in
separate steps, archival simply moves the old unsent file to a new
archived file
* Add maxInFlightTime to be used along with grace period for sending
buffer
* Create unsent/archival directories in constructor
* Code cleanup

Change-Id: Ia3bc2aaf60cced6c6d413465423d78c7d5151188
2020-07-15 14:21:56 -04:00
Moby von Briesen
be59727790 storagenode/orders: Add archival functionality to orders filestore
* Allow orders to be archived after being settled successfully with the
satellite.
* Allow for cleanup of orders that were archived before a certain time.
* Rewrite other parts of the orders file store to work better with new
design.

Change-Id: I39bea96d80e66a324ec522745169bd6d8b351751
2020-06-11 08:47:37 +00:00
Moby von Briesen
c8c0a42269 storagenode/orders: begin implementation of file store for order limits
* Will replace order limits database.
* This change adds functionality for storing and listing unsent orders.
* The next change will add functionality for order archival after
submission.

Change-Id: Ic5e2abc63991513245b6851a968ff2f2e18ce48d
2020-06-03 22:47:04 +00:00