frostfs-node/pkg/local_object_storage/writecache/delete.go

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package writecache
import (
"context"
"math"
"time"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
storagelog "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/log"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/metaerr"
"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"go.etcd.io/bbolt"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/trace"
)
// Delete removes object from write-cache.
//
// Returns an error of type apistatus.ObjectNotFound if object is missing in write-cache.
// Returns ErrNotInitialized if write-cache has not been initialized yet.
func (c *cache) Delete(ctx context.Context, addr oid.Address) error {
ctx, span := tracing.StartSpanFromContext(ctx, "writecache.Delete",
trace.WithAttributes(
attribute.String("address", addr.EncodeToString()),
))
defer span.End()
deleted := false
storageType := StorageTypeUndefined
startedAt := time.Now()
defer func() {
c.metrics.Delete(time.Since(startedAt), deleted, storageType)
}()
if !c.modeMtx.TryRLock() {
return ErrNotInitialized
}
defer c.modeMtx.RUnlock()
if c.readOnly() {
return ErrReadOnly
}
saddr := addr.EncodeToString()
var dataSize int
_ = c.db.View(func(tx *bbolt.Tx) error {
b := tx.Bucket(defaultBucket)
dataSize = len(b.Get([]byte(saddr)))
return nil
})
if dataSize > 0 {
storageType = StorageTypeDB
var recordDeleted bool
err := c.db.Update(func(tx *bbolt.Tx) error {
b := tx.Bucket(defaultBucket)
key := []byte(saddr)
recordDeleted = b.Get(key) != nil
err := b.Delete(key)
return err
})
if err != nil {
return err
}
storagelog.Write(c.log,
storagelog.AddressField(saddr),
storagelog.StorageTypeField(wcStorageType),
storagelog.OpField("db DELETE"),
)
if recordDeleted {
c.objCounters.cDB.Add(math.MaxUint64)
c.estimateCacheSize()
}
deleted = true
return nil
}
storageType = StorageTypeFSTree
_, err := c.fsTree.Delete(ctx, common.DeletePrm{Address: addr})
if err == nil {
storagelog.Write(c.log,
storagelog.AddressField(saddr),
storagelog.StorageTypeField(wcStorageType),
storagelog.OpField("fstree DELETE"),
)
deleted = true
// counter changed by fstree
c.estimateCacheSize()
}
return metaerr.Wrap(err)
}