forked from TrueCloudLab/frostfs-node
a2c2241356
In previous implementation StorageEngine.Inhume operation forced Shard
.Inhume call on all internal shards. There is a need to inhume object in a
single shard. To achieve this, Inhume operation is performed in next steps:
1. iterate over sorted shards, check object presence through Exists call;
2. if object exists at any shard in step 1 => inhume it and return on
success;
3. if no shards contain the object => iterate over sorted shards again and
try to inhume the object at first possible shard;
4. if all Inhume calls are failed => return an error.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
82 lines
2 KiB
Go
82 lines
2 KiB
Go
package engine
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import (
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"errors"
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objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
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"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/shard"
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"go.uber.org/zap"
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)
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// InhumePrm encapsulates parameters for inhume operation.
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type InhumePrm struct {
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addr, tombstone *objectSDK.Address
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}
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// InhumeRes encapsulates results of inhume operation.
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type InhumeRes struct{}
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// WithTarget sets object address that should be inhumed and tombstone address
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// as the reason for inhume operation.
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func (p *InhumePrm) WithTarget(addr, tombstone *objectSDK.Address) *InhumePrm {
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if p != nil {
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p.addr = addr
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p.tombstone = tombstone
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}
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return p
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}
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var errInhumeFailure = errors.New("inhume operation failed")
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// Inhume calls metabase. Inhume method to mark object as removed. It won't be
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// removed physically from shard until `Delete` operation.
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func (e *StorageEngine) Inhume(prm *InhumePrm) (*InhumeRes, error) {
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shPrm := new(shard.InhumePrm).WithTarget(prm.addr, prm.tombstone)
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res := e.inhume(prm.addr, shPrm, true)
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if res == nil {
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res = e.inhume(prm.addr, shPrm, false)
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if res == nil {
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return nil, errInhumeFailure
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}
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}
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return res, nil
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}
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func (e *StorageEngine) inhume(addr *objectSDK.Address, prm *shard.InhumePrm, checkExists bool) (res *InhumeRes) {
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e.iterateOverSortedShards(addr, func(_ int, sh *shard.Shard) (stop bool) {
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if checkExists {
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exRes, err := sh.Exists(new(shard.ExistsPrm).
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WithAddress(addr),
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)
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if err != nil {
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// TODO: smth wrong with shard, need to be processed
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e.log.Warn("could not check for presents in shard",
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zap.Stringer("shard", sh.ID()),
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zap.String("error", err.Error()),
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)
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return
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} else if !exRes.Exists() {
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return
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}
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}
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_, err := sh.Inhume(prm)
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if err != nil {
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// TODO: smth wrong with shard, need to be processed
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e.log.Warn("could not inhume object in shard",
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zap.Stringer("shard", sh.ID()),
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zap.String("error", err.Error()),
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)
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} else {
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res = new(InhumeRes)
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}
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return err == nil
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})
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return
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}
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