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compact: add schedule-delete and delete-delay
Signed-off-by: khyatisoneji <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| // Copyright (c) The Thanos Authors. | ||
| // Licensed under the Apache License 2.0. | ||
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| package metadata | ||
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| import "github.com/oklog/ulid" | ||
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| // CompactorMetaFilename is the known json filename to store compactor metadata. | ||
| const CompactorMetaFilename = "compactor-meta.json" | ||
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| // CompactorMeta stores block id and when block was marked for deletion. | ||
| type CompactorMeta struct { | ||
| ID ulid.ULID `json:"id"` | ||
| DeletionTime int64 `json:"deletion_time"` | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| // Copyright (c) The Thanos Authors. | ||
| // Licensed under the Apache License 2.0. | ||
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| package compact | ||
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| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "io/ioutil" | ||
| "os" | ||
| "path" | ||
| "path/filepath" | ||
| "time" | ||
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| "github.com/go-kit/kit/log" | ||
| "github.com/go-kit/kit/log/level" | ||
| "github.com/pkg/errors" | ||
| "github.com/thanos-io/thanos/pkg/block" | ||
| "github.com/thanos-io/thanos/pkg/block/metadata" | ||
| "github.com/thanos-io/thanos/pkg/objstore" | ||
| "github.com/thanos-io/thanos/pkg/runutil" | ||
| ) | ||
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| // ScheduleBlockDelete marks the block to be deleted. | ||
| type ScheduleBlockDelete struct { | ||
| dir string | ||
| logger log.Logger | ||
| deleteDelay time.Duration | ||
| bkt objstore.Bucket | ||
| } | ||
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| // NewScheduleBlockDelete creates a new ScheduleBlockDelete. | ||
| func NewScheduleBlockDelete(logger log.Logger, dir string, bkt objstore.Bucket, deleteDelay time.Duration) *ScheduleBlockDelete { | ||
| return &ScheduleBlockDelete{ | ||
| dir: dir, | ||
| logger: logger, | ||
| deleteDelay: deleteDelay, | ||
| bkt: bkt, | ||
| } | ||
| } | ||
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| // ScheduleDelete deletes blocks from bucket | ||
| // deleteDelay duration after block is marked for deletion. | ||
| func (s *ScheduleBlockDelete) ScheduleDelete(ctx context.Context) error { | ||
| defer func() { | ||
| if err := os.RemoveAll(s.dir); err != nil { | ||
| level.Error(s.logger).Log("msg", "failed to remove compactor meta dir", s.dir, "err", err) | ||
| } | ||
| }() | ||
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| if err := os.RemoveAll(s.dir); err != nil { | ||
| return errors.Wrap(err, "clean compaction compactor meta dir") | ||
| } | ||
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| return s.bkt.Iter(ctx, "", func(name string) error { | ||
| id, ok := block.IsBlockDir(name) | ||
| if ok { | ||
| compactorMetaFile := path.Join(id.String(), metadata.CompactorMetaFilename) | ||
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| r, err := s.bkt.Get(ctx, compactorMetaFile) | ||
| if s.bkt.IsObjNotFoundErr(err) { | ||
| return nil | ||
| } | ||
| if err != nil { | ||
| return errors.Wrapf(err, "get compactor-meta file: %v", compactorMetaFile) | ||
| } | ||
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| defer runutil.CloseWithLogOnErr(s.logger, r, "close bkt compactor-meta get") | ||
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| metaContent, err := ioutil.ReadAll(r) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "read compactor-meta file: %v", compactorMetaFile) | ||
| } | ||
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| compactorMeta := metadata.CompactorMeta{} | ||
| if err := json.Unmarshal(metaContent, &compactorMeta); err != nil { | ||
| return errors.Wrap(err, "unmarshal compactor meta") | ||
| } | ||
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| if time.Since(time.Unix(compactorMeta.DeletionTime, 0)) > s.deleteDelay { | ||
| if err := block.Delete(ctx, s.logger, s.bkt, compactorMeta.ID); err != nil { | ||
| return errors.Wrap(err, "delete block") | ||
| } | ||
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| if err := os.RemoveAll(filepath.Join(s.dir, compactorMeta.ID.String())); err != nil { | ||
| return errors.Wrap(err, "delete compactor-meta.json") | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| }) | ||
| } |