cmd/utils, node: switch to Pebble as the default db if none exists (#27136)

* cmd/utils, node: switch to Pebble as the default db if none exists

* node: fall back to LevelDB on platforms not supporting Pebble

* core/rawdb, node: default to Pebble at the node level

* cmd/geth: fix some tests explicitly using leveldb

* ethdb/pebble: allow double closes, makes tests simpler
This commit is contained in:
Péter Szilágyi
2023-04-21 19:24:18 +03:00
committed by GitHub
parent bbc565ab05
commit d3ece3a07c
6 changed files with 42 additions and 28 deletions
+20 -7
View File
@@ -358,9 +358,15 @@ type OpenOptions struct {
//
// type == null type != null
// +----------------------------------------
// db is non-existent | leveldb default | specified type
// db is existent | from db | specified type (if compatible)
// db is non-existent | pebble default | specified type
// db is existent | from db | specified type (if compatible)
func openKeyValueDatabase(o OpenOptions) (ethdb.Database, error) {
// Reject any unsupported database type
if len(o.Type) != 0 && o.Type != dbLeveldb && o.Type != dbPebble {
return nil, fmt.Errorf("unknown db.engine %v", o.Type)
}
// Retrieve any pre-existing database's type and use that or the requested one
// as long as there's no conflict between the two types
existingDb := hasPreexistingDb(o.Directory)
if len(existingDb) != 0 && len(o.Type) != 0 && o.Type != existingDb {
return nil, fmt.Errorf("db.engine choice was %v but found pre-existing %v database in specified data directory", o.Type, existingDb)
@@ -373,12 +379,19 @@ func openKeyValueDatabase(o OpenOptions) (ethdb.Database, error) {
return nil, errors.New("db.engine 'pebble' not supported on this platform")
}
}
if len(o.Type) != 0 && o.Type != dbLeveldb {
return nil, fmt.Errorf("unknown db.engine %v", o.Type)
if o.Type == dbLeveldb || existingDb == dbLeveldb {
log.Info("Using leveldb as the backing database")
return NewLevelDBDatabase(o.Directory, o.Cache, o.Handles, o.Namespace, o.ReadOnly)
}
// No pre-existing database, no user-requested one either. Default to Pebble
// on supported platforms and LevelDB on anything else.
if PebbleEnabled {
log.Info("Defaulting to pebble as the backing database")
return NewPebbleDBDatabase(o.Directory, o.Cache, o.Handles, o.Namespace, o.ReadOnly)
} else {
log.Info("Defaulting to leveldb as the backing database")
return NewLevelDBDatabase(o.Directory, o.Cache, o.Handles, o.Namespace, o.ReadOnly)
}
log.Info("Using leveldb as the backing database")
// Use leveldb, either as default (no explicit choice), or pre-existing, or chosen explicitly
return NewLevelDBDatabase(o.Directory, o.Cache, o.Handles, o.Namespace, o.ReadOnly)
}
// Open opens both a disk-based key-value database such as leveldb or pebble, but also