In this commit, we increase the gRPC block size from 4MB to 50MB.
Recently, the output of `lncli describegraph` has hit the block size cap
due to the expansion of the mainnet graph. Without this attempts to
fetch the graph returns an error of:
```
[lncli] rpc error: code = ResourceExhausted desc = grpc: received message larger than max (4246753 vs. 4194304)
```
With this commit, we give ourselves some breathing room. It's important
to note that the max message size limit is a _client side_ setting. As a
result, any developers driving `lnd` with gRPC will also need to raise
their block size limit as well if they wish to fetch the graph over
gRPC.
This commit fixes a subtle bug within the autopilot manager, that would
cause the active pilot to not be reset in case it wasn't started
successfully.
We also make sure the associated goroutines close over the started
pilot, and not the active pilot.
This commit fixes a test flake caused by a race condition. Using the
real sweeper in the nursery test created too complex concurrent
behaviour to reliably assert on and made the tests difficult to
comprehend.
Update is necessary to get protoc to generate files in the right
directory when using modules outside the gopath. The old version of this
dependency did not support paths=source_relative.
This commit also fixes a build error in lnd_test.go because of a
slight difference in generated code.
Previously, nursery generated and published its own sweep txes. It
stored the sweep tx in nursery_store to prevent a new tx with a new
sweep address from being generated on restart.
In this commit, sweep generation and publication is removed from nursery
and delegated to the sweeper. Also the confirmation notification is
received from the sweeper.
In this commit, the sweep package is extended from just tx generation to
an active sweeper that collects sweep inputs and autonomously proceeds
to publish the sweep tx after the batch window time interval has passed
without new inputs being added.
This commit is a preparation for the implementation of remote spend
detection. Remote spends may happen before we broadcast our own sweep
tx. This calls for accurate height hints.
We need to distinguish an lnd build for the purpose of integration
testing from a regular dev build. This makes it possible to adapt
parameters to let integration tests run faster (for example:
sweeper batch window).
In this commit, we fix a minor discrepancy with the spec. We should
return a FinalFailExpiryTooSoon error, rather than a
FinalFailIncorrectCltvExpiry error, when the last HTLC of a route (exit
hop) has an expiration height that is deemed too soon by the final
destination of the HTLC.
In this commit, we remove the per channel `sigPool` within the
`lnwallet.LightningChannel` struct. With this change, we ensure that as
the number of channels grows, the number of gouroutines idling in the
sigPool stays constant. It's the case that currently on the daemon, most
channels are likely inactive, with only a hand full actually
consistently carrying out channel updates. As a result, this change
should reduce the amount of idle CPU usage, as we have less active
goroutines in select loops.
In order to make this change, the `SigPool` itself has been publicly
exported such that outside callers can make a `SigPool` and pass it into
newly created channels. Since the sig pool now lives outside the
channel, we were also able to do away with the Stop() method on the
channel all together.
Finally, the server is the sub-system that is currently responsible for
managing the `SigPool` within lnd.
