The probability for a success forward of x amount on a channel is now
computed as:
P_success(x) = b * P_rene(x)
where P_rene(x) is the probability distribution proposed by Rene
Pickhardt with a uniform distribution on the known liquidity of the
channel and 'b' is a new parameter we add in this PR, by the name of
"base probability". The "base probability" represents the probability
for a channel in the network choosen at random to be able to forward at
least 1msat, ie. of being alive, non-depleted and with at least one HTLC
slot. We don't know the value of 'b', but for the moment we assume that
it is 0.98 and use that as default.
As a consequence the probability cost becomes non-linear and non-convex
because of the additional constant term:
Cost(x) = - log P_success(x)
= - log b - - log P_rene(x)
= - log b + Cost_rene(x)
We currently don't handle well base fees and neither this additional
"base probability" but we can as a first approximation linearize the
cost function in this way:
Cost_linear(x) = (- log b)*x + Cost_rene_linear(x)
Changelog-Added: renepay: Add a dev parameter to renepay that represents
a constant probability of availability for all channels in the network.
Signed-off-by: Lagrang3 <lagrang3@protonmail.com>
msggen cannot handle the complex type in renepay-exclude,
therefore I added a rule override for it, just like pay-exclude.
```
msggen cln-grpc/proto/node.proto
Traceback (most recent call last):
File "/home/rusty/devel/cvs/lightning/contrib/msggen/msggen/__main__.py", line 131, in <module>
main()
File "/home/rusty/devel/cvs/lightning/contrib/msggen/msggen/__main__.py", line 115, in main
run()
File "/home/rusty/devel/cvs/lightning/contrib/msggen/msggen/__main__.py", line 72, in run
service = load_jsonrpc_service(
^^^^^^^^^^^^^^^^^^^^^
File "/home/rusty/devel/cvs/lightning/contrib/msggen/msggen/utils/utils.py", line 241, in load_jsonrpc_service
methods = [load_jsonrpc_method(name) for name in grpc_method_names]
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/rusty/devel/cvs/lightning/contrib/msggen/msggen/utils/utils.py", line 209, in load_jsonrpc_method
request = CompositeField.from_js(schema["methods"][rpc_name]['request'], path=name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/rusty/devel/cvs/lightning/contrib/msggen/msggen/model.py", line 297, in from_js
field = ArrayField.from_js(fpath, ftype)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/rusty/devel/cvs/lightning/contrib/msggen/msggen/model.py", line 464, in from_js
itemtype = UnionField.from_js(child_js, path)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/rusty/devel/cvs/lightning/contrib/msggen/msggen/model.py", line 393, in from_js
itemtype = PrimitiveField(
^^^^^^^^^^^^^^^
TypeError: PrimitiveField.__init__() missing 2 required positional arguments: 'added' and 'deprecated'
```
Signed-off-by: Lagrang3 <lagrang3@protonmail.com>
Changelog-EXPERIMENTAL: renepay: add cli option "exclude" to manually disable channels and nodes.
Often I find this in the logs:
DEBUG plugin-cln-renepay: gossmap ignored 94692259263600 channel updates
Apparently gossmap_refresh does not initialize the input variable num_channel_updates_rejected.
Fix this by explicitely initializing it before calling gossmap_refresh.
Signed-off-by: Lagrang3 <lagrang3@protonmail.com>
We rather have a payment hash table to look up payments based on the
payment hash than having a list.
Signed-off-by: Lagrang3 <lagrang3@protonmail.com>
This avoids globals (and means memleak traverses the variables!): we
only change over the test plugin though, to avoid unnecessary churn.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This means we can see the values in listconfigs, even if we haven't set
them yet.
In particular, we now see the following:
* autoclean-cycle.value_int=3600
* bitcoin-rpcclienttimeout.value_int=60
* bitcoin-retry-timeout.value_int=60
* funder-max-their-funding.value_str=4294967295sat
* funder-per-channel-min.value_str=10000sat
* funder-reserve-tank.value_str=0sat
* funder-fund-probability.value_int=100
Changelog-Changed: plugins: libplugin now shows plugin option default values (where they're non-trivial)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And deprecate the --max-locktime-blocks which allows them to set it.
Hilariously, the spec misspells CLTV as CTLV at one point, so we work around it for now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
