forked from TrueCloudLab/frostfs-node
144 lines
3.2 KiB
Go
144 lines
3.2 KiB
Go
package blobovnicza
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import (
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"errors"
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"fmt"
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"path/filepath"
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"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util"
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"go.etcd.io/bbolt"
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"go.uber.org/zap"
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)
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// Open opens an internal database at the configured path with the configured permissions.
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//
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// If the database file does not exist, it will be created automatically.
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// If blobovnizca is already open, does nothing.
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func (b *Blobovnicza) Open() error {
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b.controlMtx.Lock()
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defer b.controlMtx.Unlock()
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if b.opened {
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return nil
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}
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b.log.Debug(logs.BlobovniczaCreatingDirectoryForBoltDB,
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zap.String("path", b.path),
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zap.Bool("ro", b.boltOptions.ReadOnly),
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)
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var err error
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if !b.boltOptions.ReadOnly {
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err = util.MkdirAllX(filepath.Dir(b.path), b.perm)
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if err != nil {
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return err
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}
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}
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b.log.Debug(logs.BlobovniczaOpeningBoltDB,
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zap.String("path", b.path),
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zap.Stringer("permissions", b.perm),
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)
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b.boltDB, err = bbolt.Open(b.path, b.perm, b.boltOptions)
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if err == nil {
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b.opened = true
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b.metrics.IncOpenBlobovnizcaCount()
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}
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return err
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}
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// Init initializes internal database structure.
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//
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// If Blobovnicza is already initialized, no action is taken.
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// Blobovnizca must be open, otherwise an error will return.
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func (b *Blobovnicza) Init() error {
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b.controlMtx.Lock()
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defer b.controlMtx.Unlock()
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if !b.opened {
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return errors.New("blobovnizca is not open")
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}
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b.log.Debug(logs.BlobovniczaInitializing,
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zap.Uint64("object size limit", b.objSizeLimit),
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zap.Uint64("storage size limit", b.fullSizeLimit),
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)
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if size := b.dataSize.Load(); size != 0 {
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b.log.Debug(logs.BlobovniczaAlreadyInitialized, zap.Uint64("size", size))
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return nil
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}
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if !b.boltOptions.ReadOnly {
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err := b.boltDB.Update(func(tx *bbolt.Tx) error {
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return b.iterateBucketKeys(true, func(lower, upper uint64, key []byte) (bool, error) {
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// create size range bucket
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rangeStr := stringifyBounds(lower, upper)
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b.log.Debug(logs.BlobovniczaCreatingBucketForSizeRange,
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zap.String("range", rangeStr))
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_, err := tx.CreateBucketIfNotExists(key)
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if err != nil {
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return false, fmt.Errorf("(%T) could not create bucket for bounds %s: %w",
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b, rangeStr, err)
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}
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return false, nil
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})
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})
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if err != nil {
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return err
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}
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}
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return b.initializeSize()
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}
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func (b *Blobovnicza) initializeSize() error {
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var size uint64
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err := b.boltDB.View(func(tx *bbolt.Tx) error {
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return b.iterateAllBuckets(tx, func(lower, upper uint64, b *bbolt.Bucket) (bool, error) {
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size += uint64(b.Stats().KeyN) * upper
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return false, nil
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})
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})
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if err != nil {
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return fmt.Errorf("can't determine DB size: %w", err)
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}
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b.dataSize.Store(size)
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b.metrics.AddSize(size)
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return nil
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}
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// Close releases all internal database resources.
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//
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// If blobovnizca is already closed, does nothing.
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func (b *Blobovnicza) Close() error {
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b.controlMtx.Lock()
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defer b.controlMtx.Unlock()
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if !b.opened {
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return nil
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}
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b.log.Debug(logs.BlobovniczaClosingBoltDB,
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zap.String("path", b.path),
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)
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if err := b.boltDB.Close(); err != nil {
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return err
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}
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b.metrics.DecOpenBlobovnizcaCount()
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b.metrics.SubSize(b.dataSize.Load())
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b.dataSize.Store(0)
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b.opened = false
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return nil
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}
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