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7300f33fe2
This commit adds an index bucket, disabledEdgePolicyBucket, for those ChannelEdgePolicy with disabled bit on. The main purpose is to be able to iterate over these fast when prune is needed without the need for iterating the whole graph. The entry points for accessing this index are: 1. When updating ChannelEdgePolicy - insert an entry. 2. When deleting ChannelEdge - delete the associated entries. 3. When querying for disabled channels - implemented DisabledChannelIDs function
channeldb
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