package blobstor import ( "context" "encoding/hex" "errors" "strconv" "time" "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common" "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr" "git.frostfs.info/TrueCloudLab/frostfs-observability/tracing" apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status" "go.opentelemetry.io/otel/attribute" "go.opentelemetry.io/otel/trace" ) // GetRange reads object payload data from b. // If the descriptor is present, only one sub-storage is tried, // Otherwise, each sub-storage is tried in order. func (b *BlobStor) GetRange(ctx context.Context, prm common.GetRangePrm) (res common.GetRangeRes, err error) { var ( startedAt = time.Now() ) defer func() { b.metrics.GetRange(time.Since(startedAt), len(res.Data), err == nil, prm.StorageID != nil) }() ctx, span := tracing.StartSpanFromContext(ctx, "BlobStor.GetRange", trace.WithAttributes( attribute.String("address", prm.Address.EncodeToString()), attribute.String("storage_id", hex.EncodeToString(prm.StorageID)), attribute.String("offset", strconv.FormatUint(prm.Range.GetOffset(), 10)), attribute.String("length", strconv.FormatUint(prm.Range.GetLength(), 10)), )) defer span.End() b.modeMtx.RLock() defer b.modeMtx.RUnlock() if prm.StorageID == nil { for i := range b.storage { res, err = b.storage[i].Storage.GetRange(ctx, prm) if err == nil || !errors.As(err, new(apistatus.ObjectNotFound)) { return res, err } } return common.GetRangeRes{}, logicerr.Wrap(apistatus.ObjectNotFound{}) } if len(prm.StorageID) == 0 { res, err = b.storage[len(b.storage)-1].Storage.GetRange(ctx, prm) } else { res, err = b.storage[0].Storage.GetRange(ctx, prm) } return res, err }