When a block is disconnected due to a reorg, DisconnectBlockAtHeight
is called for the block height. Prior to this patch, it would delete
every SCID in the graph with a block height greater than the
disconnected height. This meant that a reorg would delete every
zero-conf channel edge from the graph. The fix simply iterates up
until the StartingAlias and deletes every SCID between the
disconnected height and the StartingAlias height.
The channeldb implements the persistent storage engine for lnd and
generically a data storage layer for the required state within the Lightning
Network. The backing storage engine is
boltdb, an embedded pure-go key-value store
based off of LMDB.
The package implements an object-oriented storage model with queries and
mutations flowing through a particular object instance rather than the database
itself. The storage implemented by the objects includes: open channels, past
commitment revocation states, the channel graph which includes authenticated
node and channel announcements, outgoing payments, and invoices
Installation and Updating
$ go get -u github.com/lightningnetwork/lnd/channeldb