f45db028db
This removes the intermediate transaction log that was introduced as a part of the database cache as a workaround for leveldb batches causing massive memory usage spikes in favor of the recently introduced leveldb transaction interface which no longer has the memory usage issues. This approach is preferred because it can avoid the extra memory needed for the transaction log and therefore all of the intermediate states as well. As a result, the default cache size has been doubled since it equals roughly the same amount of overall memory usage and the flush interval has been raised as well.
ffldb
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]
(https://travis-ci.org/btcsuite/btcd)
Package ffldb implements a driver for the database package that uses leveldb for the backing metadata and flat files for block storage.
This driver is the recommended driver for use with btcd. It makes use leveldb for the metadata, flat files for block storage, and checksums in key areas to ensure data integrity.
Package ffldb is licensed under the copyfree ISC license.
Usage
This package is a driver to the database package and provides the database type of "ffldb". The parameters the Open and Create functions take are the database path as a string and the block network.
db, err := database.Open("ffldb", "path/to/database", wire.MainNet)
if err != nil {
// Handle error
}
db, err := database.Create("ffldb", "path/to/database", wire.MainNet)
if err != nil {
// Handle error
}
Documentation
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(http://godoc.org/github.com/btcsuite/btcd/database/ffldb)
Full go doc style documentation for the project can be viewed online without
installing this package by using the GoDoc site here:
http://godoc.org/github.com/btcsuite/btcd/database/ffldb
You can also view the documentation locally once the package is installed with
the godoc tool by running godoc -http=":6060" and pointing your browser to
http://localhost:6060/pkg/github.com/btcsuite/btcd/database/ffldb
License
Package ffldb is licensed under the copyfree ISC License.