In this commit, we add a new method to the ChannelEdgeInfo that will
allow the path finding logic to get the node opposite the pivot node
without first creating a new db transaction. The new method is able to
use an existing db transaction, or create a new one if needed.
The commit ensures that for every channel, there will always
be two entries in the edges bucket. If the policy from one or
both ends of the channel is unknown, it is marked as such.
This allows efficient lookup of incoming edges. This is
required for backwards payment path finding.
In this commit, we explicitly convert sat/vbyte fee rates input by the
user to sat/kw. We do this as users are typically more accustomed to
sat/vbyte fee rates, rather than sat/kw.
Due to a recent change within the codebase to return estimated fee rates
in sat/kw, this commit ensures that we use this fee rate properly by
calculing a transaction's fees using its weight. This includes all of
the different transactions that are created within lnd (funding, sweeps,
etc.). On-chain transactions still rely on a sat/vbyte fee rate since it's
required by btcwallet.
In this commit, we modify our FeeEstimator interface to return an
estimated fee rate in sat/kw. Recently, due to low fees on the network,
users have been experiencing failures broadcasting transactions due to
not meeting specific fee requirements. This was happening more often
than not, as the estimated fee returned by backend nodes (bitcoind and
btcd) only takes into account vbytes, rather than weight. The fees
returned are also expressed in sat/kb, so we must take care that we do
not lose precision while converting to sat/kw. In the event that this
happens, a fee floor of 253 sat/kw has been added. This fee rate
originates from bitcoind rounding up the conversion from weight to
vbytes.
In this commit, we update the set of deps to use the latest version of
btcd. Namely this version fixes a bug in re-org handling logic, ensures
that btcd will always respond to getheaders (fixes#511), and also
ensure that it will properly respond to cfheaders messages which is
required for the neutrino sync to operate smoothly.
In this commit, we introduce a nice optimization with regards to lnd's
interaction with a bitcoind backend. Within lnd, we currently have three
different subsystems responsible for watching the chain: chainntnfs,
lnwallet, and routing/chainview. Each of these subsystems has an active
RPC and ZMQ connection to the underlying bitcoind node. This would incur
a toll on the underlying bitcoind node and would cause us to miss ZMQ
events, which are crucial to lnd. We remedy this issue by sharing the
same connection to a bitcoind node between the different clients within
lnd.
Due to recent changes to the BitcoindClient interface, we now require
the backing bitcoind to use different hosts for its ZMQ raw block and
raw transaction notifications. This was needed as the notification queue
maintained by the bitcoind node would sometimes overflow with
transactions and cause block notifications to be dropped/missed.
In this commit, we expand extractBitcoindRPCParams to account for this.
In this commit, we update to the latest version of neutrino. This
version contains a number of bug fixes, and optimizations. Additionally
this version will allow the lnwallet re-org tests to once again pass
reliably on Travis.
In this commit, we fix a small bug where we would increase epochErrors
by one even if connections were successfully established. Due to this,
we would stay stuck inside of the peer bootstrapper loop without
requerying for new peers.
This commit fixes a potential race condition during
shutdown, that could allow the chain arb's
activeWatchers or activeChannels map to be modified
while ranging over their contents. We fix this by
copying the contents into new maps with the mutex
held, before releasing the mutex and shutting down
each watcher or channel arbitrator.
In this commit, we move the initialization of the server into the
funding manager itself. We do this as it's no longer the case that _any_
RPC needs to access the funding manager. In the past, this was the
only reason that the funding manager was instantiated outside of the
server: to be able to respond to queries _before_ the server was
started.
This change also fixes a bug as atm, the funding manager will try to
register for notifications _before_ the ChainNotifier itself has fully
started.
