frostfs-node/pkg/local_object_storage/blobstor/iterate.go

72 lines
2.1 KiB
Go
Raw Permalink Normal View History

package blobstor
import (
"context"
"fmt"
"time"
"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/trace"
"go.uber.org/zap"
)
// Iterate traverses the storage over the stored objects and calls the handler
// on each element.
//
// Returns any error encountered that
// did not allow to completely iterate over the storage.
//
// If handler returns an error, method wraps and returns it immediately.
func (b *BlobStor) Iterate(ctx context.Context, prm common.IteratePrm) (common.IterateRes, error) {
var (
startedAt = time.Now()
success = false
)
defer func() {
b.metrics.Iterate(time.Since(startedAt), success)
}()
ctx, span := tracing.StartSpanFromContext(ctx, "BlobStor.Iterate",
trace.WithAttributes(
attribute.Bool("ignore_errors", prm.IgnoreErrors),
))
defer span.End()
b.modeMtx.RLock()
defer b.modeMtx.RUnlock()
for i := range b.storage {
_, err := b.storage[i].Storage.Iterate(ctx, prm)
if err != nil {
if prm.IgnoreErrors {
b.log.Warn(logs.BlobstorErrorOccurredDuringTheIteration,
zap.String("storage_path", b.storage[i].Storage.Path()),
zap.String("storage_type", b.storage[i].Storage.Type()),
zap.String("err", err.Error()))
continue
}
return common.IterateRes{}, fmt.Errorf("blobstor iterator failure: %w", err)
}
}
success = true
return common.IterateRes{}, nil
}
// IterateBinaryObjects is a helper function which iterates over BlobStor and passes binary objects to f.
// Errors related to object reading and unmarshaling are logged and skipped.
func IterateBinaryObjects(ctx context.Context, blz *BlobStor, f func(addr oid.Address, data []byte, descriptor []byte) error) error {
var prm common.IteratePrm
prm.Handler = func(elem common.IterationElement) error {
return f(elem.Address, elem.ObjectData, elem.StorageID)
}
prm.IgnoreErrors = true
_, err := blz.Iterate(ctx, prm)
return err
}