479 lines
13 KiB
Go
479 lines
13 KiB
Go
package blobovniczatree
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import (
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"bytes"
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"context"
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"errors"
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"os"
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"path/filepath"
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"sync"
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"sync/atomic"
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"time"
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"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobovnicza"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
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oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
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"go.uber.org/zap"
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"golang.org/x/sync/errgroup"
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)
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var (
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errRebuildInProgress = errors.New("rebuild is in progress, the operation cannot be performed")
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errBatchFull = errors.New("batch full")
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)
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func (b *Blobovniczas) Rebuild(ctx context.Context, prm common.RebuildPrm) (common.RebuildRes, error) {
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if b.readOnly {
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return common.RebuildRes{}, common.ErrReadOnly
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}
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b.metrics.SetRebuildStatus(rebuildStatusRunning)
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b.metrics.SetRebuildPercent(0)
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success := true
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defer func() {
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if success {
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b.metrics.SetRebuildStatus(rebuildStatusCompleted)
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} else {
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b.metrics.SetRebuildStatus(rebuildStatusFailed)
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}
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}()
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b.rebuildGuard.Lock()
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defer b.rebuildGuard.Unlock()
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var res common.RebuildRes
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b.log.Debug(logs.BlobovniczaTreeCompletingPreviousRebuild)
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completedPreviosMoves, err := b.completeIncompletedMove(ctx, prm.MetaStorage)
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res.ObjectsMoved += completedPreviosMoves
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if err != nil {
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b.log.Warn(logs.BlobovniczaTreeCompletedPreviousRebuildFailed, zap.Error(err))
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success = false
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return res, err
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}
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b.log.Debug(logs.BlobovniczaTreeCompletedPreviousRebuildSuccess)
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b.log.Debug(logs.BlobovniczaTreeCollectingDBToRebuild)
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dbsToMigrate, err := b.getDBsToRebuild(ctx)
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if err != nil {
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b.log.Warn(logs.BlobovniczaTreeCollectingDBToRebuildFailed, zap.Error(err))
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success = false
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return res, err
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}
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b.log.Info(logs.BlobovniczaTreeCollectingDBToRebuildSuccess, zap.Int("blobovniczas_to_rebuild", len(dbsToMigrate)))
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res, err = b.migrateDBs(ctx, dbsToMigrate, prm, res)
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if err != nil {
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success = false
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}
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return res, err
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}
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func (b *Blobovniczas) migrateDBs(ctx context.Context, dbs []string, prm common.RebuildPrm, res common.RebuildRes) (common.RebuildRes, error) {
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var completedDBCount uint32
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for _, db := range dbs {
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b.log.Debug(logs.BlobovniczaTreeRebuildingBlobovnicza, zap.String("path", db))
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movedObjects, err := b.rebuildDB(ctx, db, prm.MetaStorage, prm.WorkerLimiter)
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res.ObjectsMoved += movedObjects
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if err != nil {
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b.log.Warn(logs.BlobovniczaTreeRebuildingBlobovniczaFailed, zap.String("path", db), zap.Uint64("moved_objects_count", movedObjects), zap.Error(err))
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return res, err
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}
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b.log.Debug(logs.BlobovniczaTreeRebuildingBlobovniczaSuccess, zap.String("path", db), zap.Uint64("moved_objects_count", movedObjects))
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res.FilesRemoved++
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completedDBCount++
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b.metrics.SetRebuildPercent((100 * completedDBCount) / uint32(len(dbs)))
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}
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b.metrics.SetRebuildPercent(100)
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return res, nil
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}
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func (b *Blobovniczas) getDBsToRebuild(ctx context.Context) ([]string, error) {
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dbsToMigrate := make(map[string]struct{})
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if err := b.iterateExistingDBPaths(ctx, func(s string) (bool, error) {
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dbsToMigrate[s] = struct{}{}
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return false, nil
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}); err != nil {
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return nil, err
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}
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if err := b.iterateSortedLeaves(ctx, nil, func(s string) (bool, error) {
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delete(dbsToMigrate, s)
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return false, nil
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}); err != nil {
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return nil, err
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}
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result := make([]string, 0, len(dbsToMigrate))
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for db := range dbsToMigrate {
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result = append(result, db)
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}
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return result, nil
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}
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func (b *Blobovniczas) rebuildDB(ctx context.Context, path string, meta common.MetaStorage, limiter common.ConcurrentWorkersLimiter) (uint64, error) {
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shDB := b.getBlobovnicza(path)
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blz, err := shDB.Open()
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if err != nil {
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return 0, err
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}
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shDBClosed := false
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defer func() {
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if shDBClosed {
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return
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}
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shDB.Close()
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}()
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migratedObjects, err := b.moveObjects(ctx, blz, shDB.SystemPath(), meta, limiter)
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if err != nil {
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return migratedObjects, err
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}
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shDBClosed, err = b.dropDB(ctx, path, shDB)
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return migratedObjects, err
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}
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func (b *Blobovniczas) moveObjects(ctx context.Context, blz *blobovnicza.Blobovnicza, blzPath string, meta common.MetaStorage, limiter common.ConcurrentWorkersLimiter) (uint64, error) {
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var result atomic.Uint64
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batch := make(map[oid.Address][]byte)
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var prm blobovnicza.IteratePrm
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prm.DecodeAddresses()
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prm.SetHandler(func(ie blobovnicza.IterationElement) error {
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batch[ie.Address()] = bytes.Clone(ie.ObjectData())
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if len(batch) == b.blzMoveBatchSize {
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return errBatchFull
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}
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return nil
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})
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for {
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_, err := blz.Iterate(ctx, prm)
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if err != nil && !errors.Is(err, errBatchFull) {
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return result.Load(), err
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}
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if len(batch) == 0 {
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break
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}
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eg, egCtx := errgroup.WithContext(ctx)
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for addr, data := range batch {
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addr := addr
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data := data
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if err := limiter.AcquireWorkSlot(egCtx); err != nil {
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_ = eg.Wait()
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return result.Load(), err
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}
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eg.Go(func() error {
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defer limiter.ReleaseWorkSlot()
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err := b.moveObject(egCtx, blz, blzPath, addr, data, meta)
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if err == nil {
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result.Add(1)
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}
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return err
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})
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}
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if err := eg.Wait(); err != nil {
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return result.Load(), err
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}
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batch = make(map[oid.Address][]byte)
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}
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return result.Load(), nil
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}
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func (b *Blobovniczas) moveObject(ctx context.Context, source *blobovnicza.Blobovnicza, sourcePath string,
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addr oid.Address, data []byte, metaStore common.MetaStorage,
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) error {
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startedAt := time.Now()
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defer func() {
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b.metrics.ObjectMoved(time.Since(startedAt))
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}()
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it := &moveIterator{
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B: b,
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ID: nil,
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AllFull: true,
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Address: addr,
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ObjectData: data,
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MetaStore: metaStore,
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Source: source,
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SourceSysPath: sourcePath,
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}
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if err := b.iterateDeepest(ctx, addr, func(lvlPath string) (bool, error) { return it.tryMoveToLvl(ctx, lvlPath) }); err != nil {
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return err
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} else if it.ID == nil {
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if it.AllFull {
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return common.ErrNoSpace
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}
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return errPutFailed
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}
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return nil
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}
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func (b *Blobovniczas) dropDB(ctx context.Context, path string, shDb *sharedDB) (bool, error) {
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select {
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case <-ctx.Done():
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return false, ctx.Err()
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case <-time.After(b.waitBeforeDropDB): // to complete requests with old storage ID
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}
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b.dbCache.EvictAndMarkNonCached(path)
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defer b.dbCache.RemoveFromNonCached(path)
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b.dbFilesGuard.Lock()
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defer b.dbFilesGuard.Unlock()
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if err := shDb.CloseAndRemoveFile(); err != nil {
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return false, err
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}
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b.commondbManager.CleanResources(path)
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if err := b.dropDirectoryIfEmpty(filepath.Dir(path)); err != nil {
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return true, err
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}
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return true, nil
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}
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func (b *Blobovniczas) dropDirectoryIfEmpty(path string) error {
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if path == "." {
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return nil
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}
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sysPath := filepath.Join(b.rootPath, path)
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entries, err := os.ReadDir(sysPath)
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if err != nil {
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return err
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}
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if len(entries) > 0 {
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return nil
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}
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if err := os.Remove(sysPath); err != nil {
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return err
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}
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return b.dropDirectoryIfEmpty(filepath.Dir(path))
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}
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func (b *Blobovniczas) completeIncompletedMove(ctx context.Context, metaStore common.MetaStorage) (uint64, error) {
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var count uint64
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return count, b.iterateExistingDBPaths(ctx, func(s string) (bool, error) {
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shDB := b.getBlobovnicza(s)
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blz, err := shDB.Open()
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if err != nil {
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return true, err
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}
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defer shDB.Close()
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incompletedMoves, err := blz.ListMoveInfo(ctx)
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if err != nil {
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return true, err
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}
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for _, move := range incompletedMoves {
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if err := b.performMove(ctx, blz, shDB.SystemPath(), move, metaStore); err != nil {
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return true, err
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}
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count++
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}
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return false, nil
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})
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}
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func (b *Blobovniczas) performMove(ctx context.Context, source *blobovnicza.Blobovnicza, sourcePath string,
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move blobovnicza.MoveInfo, metaStore common.MetaStorage,
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) error {
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targetDB := b.getBlobovnicza(NewIDFromBytes(move.TargetStorageID).Path())
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target, err := targetDB.Open()
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if err != nil {
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return err
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}
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defer targetDB.Close()
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existsInSource := true
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var gPrm blobovnicza.GetPrm
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gPrm.SetAddress(move.Address)
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gRes, err := source.Get(ctx, gPrm)
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if err != nil {
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if client.IsErrObjectNotFound(err) {
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existsInSource = false
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} else {
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b.log.Warn(logs.BlobovniczatreeCouldNotCheckExistenceInTargetDB, zap.Error(err))
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return err
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}
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}
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if !existsInSource { // object was deleted by Rebuild, need to delete move info
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if err = source.DropMoveInfo(ctx, move.Address); err != nil {
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b.log.Warn(logs.BlobovniczatreeCouldNotDropMoveInfo, zap.String("path", sourcePath), zap.Error(err))
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return err
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}
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b.deleteProtectedObjects.Delete(move.Address)
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return nil
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}
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existsInTarget, err := target.Exists(ctx, move.Address)
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if err != nil {
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b.log.Warn(logs.BlobovniczatreeCouldNotCheckExistenceInTargetDB, zap.Error(err))
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return err
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}
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if !existsInTarget {
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var putPrm blobovnicza.PutPrm
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putPrm.SetAddress(move.Address)
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putPrm.SetMarshaledObject(gRes.Object())
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_, err = target.Put(ctx, putPrm)
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if err != nil {
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b.log.Warn(logs.BlobovniczatreeCouldNotPutObjectToTargetDB, zap.String("path", targetDB.SystemPath()), zap.Error(err))
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return err
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}
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}
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if err = metaStore.UpdateStorageID(ctx, move.Address, move.TargetStorageID); err != nil {
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b.log.Warn(logs.BlobovniczatreeCouldNotUpdateStorageID, zap.Error(err), zap.Stringer("address", move.Address))
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return err
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}
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var deletePrm blobovnicza.DeletePrm
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deletePrm.SetAddress(move.Address)
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if _, err = source.Delete(ctx, deletePrm); err != nil {
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b.log.Warn(logs.BlobovniczatreeCouldNotDeleteFromSource, zap.String("path", sourcePath), zap.Error(err))
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return err
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}
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if err = source.DropMoveInfo(ctx, move.Address); err != nil {
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b.log.Warn(logs.BlobovniczatreeCouldNotDropMoveInfo, zap.String("path", sourcePath), zap.Error(err))
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return err
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}
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b.deleteProtectedObjects.Delete(move.Address)
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return nil
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}
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type moveIterator struct {
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B *Blobovniczas
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ID *ID
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AllFull bool
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Address oid.Address
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ObjectData []byte
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MetaStore common.MetaStorage
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Source *blobovnicza.Blobovnicza
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SourceSysPath string
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}
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func (i *moveIterator) tryMoveToLvl(ctx context.Context, lvlPath string) (bool, error) {
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target, err := i.B.activeDBManager.GetOpenedActiveDBForLevel(lvlPath)
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if err != nil {
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if !isLogical(err) {
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i.B.reportError(logs.BlobovniczatreeCouldNotGetActiveBlobovnicza, err)
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} else {
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i.B.log.Warn(logs.BlobovniczatreeCouldNotGetActiveBlobovnicza, zap.Error(err))
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}
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return false, nil
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}
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if target == nil {
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i.B.log.Warn(logs.BlobovniczatreeBlobovniczaOverflowed, zap.String("level", lvlPath))
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return false, nil
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}
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defer target.Close()
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i.AllFull = false
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targetIDx := u64FromHexString(filepath.Base(target.SystemPath()))
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targetStorageID := NewIDFromBytes([]byte(filepath.Join(lvlPath, u64ToHexString(targetIDx))))
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if err = i.Source.PutMoveInfo(ctx, blobovnicza.MoveInfo{
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Address: i.Address,
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TargetStorageID: targetStorageID.Bytes(),
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}); err != nil {
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if !isLogical(err) {
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i.B.reportError(logs.BlobovniczatreeCouldNotPutMoveInfoToSourceBlobovnicza, err)
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} else {
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i.B.log.Warn(logs.BlobovniczatreeCouldNotPutMoveInfoToSourceBlobovnicza, zap.String("path", i.SourceSysPath), zap.Error(err))
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}
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return true, nil
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}
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i.B.deleteProtectedObjects.Add(i.Address)
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var putPrm blobovnicza.PutPrm
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putPrm.SetAddress(i.Address)
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putPrm.SetMarshaledObject(i.ObjectData)
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_, err = target.Blobovnicza().Put(ctx, putPrm)
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if err != nil {
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if !isLogical(err) {
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i.B.reportError(logs.BlobovniczatreeCouldNotPutObjectToActiveBlobovnicza, err)
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} else {
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i.B.log.Warn(logs.BlobovniczatreeCouldNotPutObjectToActiveBlobovnicza, zap.String("path", target.SystemPath()), zap.Error(err))
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}
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return true, nil
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}
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if err = i.MetaStore.UpdateStorageID(ctx, i.Address, targetStorageID.Bytes()); err != nil {
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i.B.log.Warn(logs.BlobovniczatreeCouldNotUpdateStorageID, zap.Error(err), zap.Stringer("address", i.Address))
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return true, nil
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}
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var deletePrm blobovnicza.DeletePrm
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deletePrm.SetAddress(i.Address)
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if _, err = i.Source.Delete(ctx, deletePrm); err != nil {
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if !isLogical(err) {
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i.B.reportError(logs.BlobovniczatreeCouldNotDeleteFromSource, err)
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} else {
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i.B.log.Warn(logs.BlobovniczatreeCouldNotDeleteFromSource, zap.String("path", i.SourceSysPath), zap.Error(err))
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}
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return true, nil
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}
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if err = i.Source.DropMoveInfo(ctx, i.Address); err != nil {
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if !isLogical(err) {
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i.B.reportError(logs.BlobovniczatreeCouldNotDropMoveInfo, err)
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} else {
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i.B.log.Warn(logs.BlobovniczatreeCouldNotDropMoveInfo, zap.String("path", i.SourceSysPath), zap.Error(err))
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}
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return true, nil
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}
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i.B.deleteProtectedObjects.Delete(i.Address)
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i.ID = targetStorageID
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return true, nil
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}
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type addressMap struct {
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data map[oid.Address]struct{}
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guard *sync.RWMutex
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}
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func newAddressMap() *addressMap {
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return &addressMap{
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data: make(map[oid.Address]struct{}),
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guard: &sync.RWMutex{},
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}
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}
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func (m *addressMap) Add(address oid.Address) {
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m.guard.Lock()
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defer m.guard.Unlock()
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m.data[address] = struct{}{}
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}
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func (m *addressMap) Delete(address oid.Address) {
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m.guard.Lock()
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defer m.guard.Unlock()
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delete(m.data, address)
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}
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func (m *addressMap) Contains(address oid.Address) bool {
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m.guard.RLock()
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defer m.guard.RUnlock()
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_, contains := m.data[address]
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return contains
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}
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