Also includes:
* improved error handling when pruning channels
* more aggressively signals errors when enumerating height outputs
* removes use of variadic functions in Incubate, AwardDiplomas
* renames AwardDiplomas to GraduateKinder
* short circuits channel maturity test after finding 1 non-grad output
* replaces prefixed outputs in height buckets with files, instead of
empty buckets
This commit introduces a new type called a NurseryStore
which abstract many of the persistent operations required
by the utxo nursery. The code in this commit is
intentionally introduced as dead code, as the utxo
nursery will later be modified to hook into the new
database. It is designed to support incubation of
commitment and htlc outputs, and includes full
chain segmentation!
In this commit we fix an existing bug within the ChannelRouter. Before
this commit, we would sync our graph prune state, *then* update the
cain filter. This is incorrect as the blocks we manually pruned may
have included channel closing transactions. As a result, we would miss
the pruning of a set of channels, and assume that they were still
active.
In this commit, we fix this by reversing the order: we first update the
chain filter and THEN sync the channel graph.
In this commit we add a new test to the set of unit tests for the
ChannelRouter: TestRouterChansClosedOfflinePruneGraph. This tests that
if channels are closed while the ChannelRouter is down, then upon
restart the channels are properly recognized as being closed.
In this commit, we add a Reset() method to the mockChainView struct.
With this new method tests are able to fully simulate a restart of the
ChannelRouter. This is necessary as the FilteredChainView instances are
assumed to be stateless, and don’t write their state to disk before a
restart.
This commit adds a test for an lnd instance experiecing a reorg,
making sure a channel that is in the channel graph (using the
describegraph rpc call) will no longer be after the funding tx
gets reorged out.
This commit adds a test for the FilteredChainView interfaces,
making sure they notify about disconnected/connected blocks
in the correct order during a reorg.
This commit makes use of the blockEventQueue within the neutrino
implementation of FilteredChainView to ensure connected and
disconnected blocks are consumed in order by the reader.
It also specifies that neutrino is not to send disconnected blocks
notifications during rescans, making it consistent with the btcd
implementation.
This commit moves btcd view away from using the deprecated
callbacks onBlockConnected/Disconnected, and instead use
onFilteredBlockConnected/disconnected.
This commit also implements the sending of disconnected blocks
over the staleBlocks channel. To send these blocks, the
blockEventQueue is used to ensure the ordering of blocks are
correctly kept.
It also changes the way filter updates are handled. Since we
now load the tx filter to the rpc server itself, we can call
RescanBlocks instead of manually filtering blocks. These
rescanned blocks are also added to the blockEventQueue,
ensuring the ordering is kept.
blockEventQueue is an ordered queue for block events sent from a
FilteredChainView. The two types of possible block events are
connected/new blocks, and disconencted/stale blocks. The
blockEventQueue keeps the order of these events intact, while
still being non-blocking. This is important in order for the
chainView's call to onFilteredBlockConnected/Disconnected to not
get blocked, and for the consumer of the block events to always
get the events in the correct order.
This commit adds the method DisconnectBlockAtHeight to the channel
graph database, making it possible to "rewind" the database in case
a block is disconnected from the main chain. To accomplish this,
a prune log is introduced, making it possible to keep track of the
point in time where the database was pruned. This is necessary for
the case where lnd might wake up on a stale branch, and must "walk
backwards" on this branch after it finds a common block fro the
graph database and the new main chain.
This commit refactors the core logic of the
chanMsgStream to support an additional stream
that is used to asynchronously queue for in-order
delivery to the authenticated gossiper. The channel
streams are slightly adapted to use the more flexible
primitive. We may look to refactor this using more
isolated interfaces, but for now this provides a
minimal change to resolving known flakes.
In this commit, we modify the assertNumOpenChannelsPending to poll
every 200ms rather than just a single attempt. The goal of this commit
is to reduce the number of flakes on travis caused by slow instances.
In this commit we modify the establishTestConnection() function that
each of the brontide unit tests utilize. Before this commit, we would
fully block on the Accept method of the listener. Since then it has
been observed, that at times if Accept blocks indefinitely, then the
entire test will fail after 10 minutes. To allow the test to return
early with a pertinent error, we’ll now make the entire test async, so
we can immediately return with an error if detected.
In this commit, we add a TCP fallback option for the
DNSSeedBootstrapper. We’ve received many reports of users unable to
bootstrap properly to the network due to the size of the SRV records we
currently return. It has been observed that many revolvers will simply
truncate and ignore the response due to the (current size).
To resolve (no pun intended) we now attempt to detect this failure mode
and will fallback to a manual TCP resolution in the case that our SRV
query over UDP fails. We do this by querying the special record at the
"soa." sub-domain of supporting DNS servers. The retuned IP address
will be the IP address of the authoritative DNS server. Once we have
this IP address, we'll connect manually over TCP to request the SRV
record. This is necessary as the records we return are currently too
large for a class of resolvers, causing them to be filtered out.
In this commit we modify the ConstrainedPrefAttachment.Select method to
first shuffle the set of potential candidates before selecting them.
This serves to remove the existing grouping between candidates which
may have influenced the selection.
In this commit we restore the prior workflow of the docker-compose set
up with have to allow developers to quickly erect an lnd+btcd instance.
In a recent change, we now prompt the user for a passphrase that will
be used to encrypt the wallet database. This affected the prior
workflow, as it assumed set up was non-interactive.
In this commit we restore the prior behavior as we now start the lnd
nodes with --noencryptwallet.
This commit decouples the wait for funding transaction confirmations
in the waitForFundingConfirmation function from the announcement of
the channel in the sendFundingLockedAndAnnounceChannel function.
Additionally, the sendFundingLockedAndAnnounceChannel function is
now decoupled into the sendFundingLocked and sendChannelAnnouncement
functions. There is also now a helper function that houses creation
of a lnwire.LightningChannel object, calls to both sendFundingLocked
and sendChannelAnnouncement.
This commit refactors the SynchronizeNode logic such that
it can be called without interacting with the gossiper's
main execution loop. This method does not require access
to any of the gossiper's internal state, making the change
fairly straightforward. The primary motivation behind
this change is to minimize the possibility of introducing
deadlock scenarios between the gossiper and server.
