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