Commit Graph

451 Commits

Author SHA1 Message Date
Johan T. Halseth
5485101f9f
Merge pull request #3170 from cfromknecht/remove-router-reject-cache
routing/router: remove router-level reject cache
2019-06-11 21:52:27 +02:00
Johan T. Halseth
2dea790b55
multi: make GetPaymentResult take payment hash
Used for logging in the switch, and when we remove the pending payments,
only the router will have the hash stored across restarts.
2019-06-07 16:53:32 +02:00
Conner Fromknecht
f8db49e7e4
routing/router: remove router-level reject cache
This is now redundant since we have one at the db-level
2019-06-06 13:02:16 +02:00
Joost Jager
07d289c14e
routing: add SendPaymentAsync to router 2019-06-05 12:41:51 +02:00
Joost Jager
eb2647e8fc
channeldb: add subscription to control tower
Allows other sub-systems to subscribe to payment success and fail
events.
2019-06-05 12:41:49 +02:00
Joost Jager
87d3207baf
channeldb+routing: move control tower interface to routing
This commit creates an empty shall for control tower in the routing
package. It is a preparation for adding event notification.
2019-06-05 12:41:47 +02:00
Joost Jager
19d5f8f82c
routing: move default cltv assignment out of router
This commit lifts default setting up to the rpc server level, in line
with other payment defaults.
2019-06-05 12:41:43 +02:00
Olaoluwa Osuntokun
7453dbeacc
Merge pull request #2802 from joostjager/probability
routing: probability based path finding
2019-06-05 11:30:55 +02:00
Joost Jager
054e42f680
routing+routerrpc: expose mission control parameters in lnd config
This commit exposes the three main parameters that influence mission
control and path finding to the user as command line or config file
flags. It allows for fine-tuning for optimal results.
2019-06-04 13:22:50 +02:00
Johan T. Halseth
6d52128da0
routing/router test: assert SendToRoute init values
This commit adds an assertion to the SendToRoute test that the payment
value stored to the DB during SendToRoute execution is the correct one.

This assertion would fail before the previous commit that fixed a
missing value initialization.
2019-06-04 10:34:59 +02:00
Johan T. Halseth
1161d87eec
routing/router: correct SendToRoute's amount record in DB
Previously we would mistakenly use the payment value from the dummy
LightningPayment struct, which would obviously be 0 always. Now we
instead calculate the value from the given route.
2019-06-04 10:13:33 +02:00
Joost Jager
f7982f0f4c
routing+routerrpc: expose mission control state over rpc
This commit exposes mission control state for rpc for development
purposes.
2019-06-04 10:00:27 +02:00
Joost Jager
7133f37bb8
routing: global probability based mission control
Previously every payment had its own local mission control state which
was in effect only for that payment. In this commit most of the local
state is removed and payments all tap into the global mission control
probability estimator.

Furthermore the decay time of pruned edges and nodes is extended, so
that observations about the network can better benefit future payment
processes.

Last, the probability function is transformed from a binary output to a
gradual curve, allowing for a better trade off between candidate routes.
2019-06-04 10:00:25 +02:00
Joost Jager
3349d517aa
routing: add min probability to path finding
This commit adds a new restriction to pathfinding that allows returning
only routes with a minimum success probability.
2019-06-04 10:00:23 +02:00
Joost Jager
6b70791c2d
routing: use probability source in path finding
This PR replaces the previously used edge and node ignore lists in path
finding by a probability based system. It modifies path finding so that
it not only compares routes on fee and time lock, but also takes route
success probability into account.

Allowing routes to be compared based on success probability is achieved
by introducing a 'virtual' cost of a payment attempt and using that to
translate probability into another cost factor.
2019-06-04 10:00:21 +02:00
Joost Jager
68f2a04f42
routerrpc: expose mission control reset rpc 2019-06-04 10:00:17 +02:00
Joost Jager
3db48dc53f
routing: Route String() method 2019-06-04 10:00:15 +02:00
Joost Jager
35003bd87c
routing/test: sort nodes for channel graph
This commit ensures that channel endpoints in EdgeInfo are ordered
node1 < node2 to not violate assumptions being made by dependent code.
2019-06-04 10:00:13 +02:00
Olaoluwa Osuntokun
4068e78af6
Merge pull request #2717 from cfromknecht/send-payment-payreq
lnrpc+rpcserver: display payreq via listpayments
2019-05-31 17:09:04 -07:00
Joost Jager
1b5655f7fa
Merge pull request #3113 from joostjager/sendtoroute-error-fix
routing: return structured error for send to route
2019-05-30 23:20:14 +02:00
Conner Fromknecht
078734b511
routing/router: set payreq before persisting PaymentCreationInfo 2019-05-29 16:31:12 -07:00
Joost Jager
cbfc7dd42d
routing: check findPath error 2019-05-29 14:07:00 +02:00
Joost Jager
0e273a5731
routing: return structured error for send to route 2019-05-29 14:06:58 +02:00
Johan T. Halseth
5882e54bf3
route test: add a simple unit test for the TotalFees method
Checks fees on 0, 1, and 2-hop routes.
2019-05-28 11:16:34 +02:00
Johan T. Halseth
f829d33d6f
route: return 0 fee from TotalFees for empty route.
Otherwise we would crash calling the method on empty routes.
2019-05-28 11:03:14 +02:00
Johan T. Halseth
649ee875fd
routing/router_test: add test case for ForwardingError on SendHTLC 2019-05-27 20:19:00 +02:00
Johan T. Halseth
1b788904f0
channeldb+router: record payment failure reason in db 2019-05-27 20:18:59 +02:00
Johan T. Halseth
60e2367973
routing/router_test: add TestRouterPaymentStateMachine
TestRouterPaymentStateMachine tests that the router interacts as
expected with the ControlTower during a payment lifecycle, such that it
payment attempts are not sent twice to the switch, and results are
handled after a restart.
2019-05-27 20:18:59 +02:00
Johan T. Halseth
3f76bc0629
routing+server: define PaymentSessionSource 2019-05-27 20:18:59 +02:00
Johan T. Halseth
f4306b1178
routing/payment_session+router: make PaymentSession interface 2019-05-27 20:18:58 +02:00
Johan T. Halseth
adc4640f4f
routing: export MissionControl 2019-05-27 20:18:58 +02:00
Johan T. Halseth
3323800e02
routing/router: resume payment state machine at startup
On startup the router will fetch the in-flight payments from the control
tower, and resume their execution.
2019-05-27 20:18:58 +02:00
Johan T. Halseth
677cb018c9
routing/control_tower: add FetchInFlightPayments 2019-05-27 20:18:58 +02:00
Johan T. Halseth
de1bf8a518
routing/router: persist payment state machine
This commit makes the router use the ControlTower to drive the payment
life cycle state machine, to keep track of active payments across
restarts.  This lets the router resume payments on startup, such that
their final results can be handled and stored when ready.
2019-05-27 20:18:58 +02:00
Johan T. Halseth
dd73c51a34
routing/payment_lifecycle: extract create attempt into method 2019-05-27 20:18:58 +02:00
Johan T. Halseth
e9b2182cdc
routing/payment_lifecycle: extract error handling into method 2019-05-27 20:18:58 +02:00
Johan T. Halseth
83bfaa4fb4
routing: extract payment flow into method on paymentLifecycle
This encapsulates all state needed to resume a payment from any point of
the payment flow, and that must be shared between the different stages
of the execution. This is done to prepare for breaking the send loop
into smaller parts, and being able to resume the payment from any point
from persistent state.
2019-05-27 20:18:57 +02:00
Johan T. Halseth
ae7bf2cb7b
routing/router: move sending and receiving payment result into loop 2019-05-27 20:18:57 +02:00
Wilmer Paulino
6e0084fec9
Merge pull request #3075 from cfromknecht/crtr-nil-path-curves
routing/router: nil path pubkeys before spewing
2019-05-23 20:01:54 -07:00
Xavi Soler
28021361d1
routing: add color to node update 2019-05-23 10:52:12 +02:00
Johan T. Halseth
2c1c29e060
Merge pull request #3081 from halseth/route-remove-totalfees
routing/route+multi: remove redundant TotalFees field
2019-05-20 15:00:01 +02:00
Johan T. Halseth
15bed506b1
routing/route+multi: remove redundant TotalFees field
Instead get it on demand using method TotalFees().
2019-05-16 23:58:32 +02:00
Johan T. Halseth
cd02c22977
htlcswitch+router: move deobfuscator creation to GetPaymentResult call
In this commit we move handing the deobfuscator from the router to the
switch from when the payment is initiated, to when the result is
queried.

We do this because only the router can recreate the deobfuscator after a
restart, and we are preparing for being able to handle results across
restarts.

Since the deobfuscator cannot be nil anymore, we can also get rid of
that special case.
2019-05-16 23:56:12 +02:00
Johan T. Halseth
5a8b892bb6
routing/router: extract sessionKey generation
We extract the session key such that we can later store it across
restarts.
2019-05-16 23:56:12 +02:00
Johan T. Halseth
ec087a9f73
htlcswitch+router: define PaymentResult, GetPaymentResult
This lets us distinguish an critical error from a actual payment result
(success or failure). This is important since we know that we can only
attempt another payment when a final result from the previous payment
attempt is received.
2019-05-16 23:56:12 +02:00
Johan T. Halseth
ed81cec0fa
routing/router: remove sendToSwitch method 2019-05-16 23:56:11 +02:00
Johan T. Halseth
c9e8ff6a34
switch+router+server: move NextPaymentID to router
This commit moves the responsibility of generating a unique payment ID
from the switch to the router. This will make it easier for the router
to keep track of which HTLCs were successfully forwarded onto the
network, as it can query the switch for existing HTLCs as long as the
paymentIDs are kept.

The router is expected to maintain a map from paymentHash->paymentID,
such that they can be replayed on restart. This also lets the router
check the status of a sent payment after a restart, by querying the
switch for the paymentID in question.
2019-05-16 23:56:06 +02:00
Johan T. Halseth
f1cb54f943
routing/router: define PaymentAttemptDispatcher interface
The switch satisfies this interface, and makes it easy to mock the send
method from the router.
2019-05-16 23:53:08 +02:00
Joost Jager
ba3fa94268
lnrpc+routing: Only accept a single route for SendToRoute 2019-05-15 11:54:46 +02:00
Conner Fromknecht
4d26e90ef3
routing/router: nil path pubkeys before spewing 2019-05-14 20:32:58 -07:00