forked from TrueCloudLab/frostfs-node
83 lines
2 KiB
Go
83 lines
2 KiB
Go
package meta
|
|
|
|
import (
|
|
"fmt"
|
|
"path/filepath"
|
|
|
|
"github.com/nspcc-dev/neofs-node/pkg/util"
|
|
"go.etcd.io/bbolt"
|
|
"go.uber.org/zap"
|
|
)
|
|
|
|
// Open boltDB instance for metabase.
|
|
func (db *DB) Open() error {
|
|
err := util.MkdirAllX(filepath.Dir(db.info.Path), db.info.Permission)
|
|
if err != nil {
|
|
return fmt.Errorf("can't create dir %s for metabase: %w", db.info.Path, err)
|
|
}
|
|
|
|
db.log.Debug("created directory for Metabase", zap.String("path", db.info.Path))
|
|
|
|
db.boltDB, err = bbolt.Open(db.info.Path, db.info.Permission, db.boltOptions)
|
|
if err != nil {
|
|
return fmt.Errorf("can't open boltDB database: %w", err)
|
|
}
|
|
|
|
db.log.Debug("opened boltDB instance for Metabase")
|
|
|
|
return nil
|
|
}
|
|
|
|
// Init initializes metabase. It creates static (CID-independent) buckets in underlying BoltDB instance.
|
|
//
|
|
// Does nothing if metabase has already been initialized and filled. To roll back the database to its initial state,
|
|
// use Reset.
|
|
func (db *DB) Init() error {
|
|
return db.init(false)
|
|
}
|
|
|
|
// Reset resets metabase. Works similar to Init but cleans up all static buckets and
|
|
// removes all dynamic (CID-dependent) ones in non-blank BoltDB instances.
|
|
func (db *DB) Reset() error {
|
|
return db.init(true)
|
|
}
|
|
|
|
func (db *DB) init(reset bool) error {
|
|
mStaticBuckets := map[string]struct{}{
|
|
string(containerVolumeBucketName): {},
|
|
string(graveyardBucketName): {},
|
|
string(toMoveItBucketName): {},
|
|
}
|
|
|
|
return db.boltDB.Update(func(tx *bbolt.Tx) error {
|
|
for k := range mStaticBuckets {
|
|
b, err := tx.CreateBucketIfNotExists([]byte(k))
|
|
if err != nil {
|
|
return fmt.Errorf("could not create static bucket %s: %w", k, err)
|
|
}
|
|
|
|
if reset {
|
|
if err = resetBucket(b); err != nil {
|
|
return fmt.Errorf("could not reset static bucket %s: %w", k, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
if !reset {
|
|
return nil
|
|
}
|
|
|
|
return tx.ForEach(func(name []byte, b *bbolt.Bucket) error {
|
|
if _, ok := mStaticBuckets[string(name)]; !ok {
|
|
return tx.DeleteBucket(name)
|
|
}
|
|
|
|
return nil
|
|
})
|
|
})
|
|
}
|
|
|
|
// Close closes boltDB instance.
|
|
func (db *DB) Close() error {
|
|
return db.boltDB.Close()
|
|
}
|