frostfs-node/pkg/local_object_storage/engine/inhume.go

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package engine
import (
"context"
"errors"
"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/trace"
"go.uber.org/zap"
)
// InhumePrm encapsulates parameters for inhume operation.
type InhumePrm struct {
tombstone *oid.Address
addrs []oid.Address
forceRemoval bool
}
// InhumeRes encapsulates results of inhume operation.
type InhumeRes struct{}
// WithTarget sets a list of objects that should be inhumed and tombstone address
// as the reason for inhume operation.
//
// tombstone should not be nil, addr should not be empty.
// Should not be called along with MarkAsGarbage.
func (p *InhumePrm) WithTarget(tombstone oid.Address, addrs ...oid.Address) {
p.addrs = addrs
p.tombstone = &tombstone
}
// MarkAsGarbage marks an object to be physically removed from local storage.
//
// Should not be called along with WithTarget.
func (p *InhumePrm) MarkAsGarbage(addrs ...oid.Address) {
p.addrs = addrs
p.tombstone = nil
}
// WithForceRemoval inhumes objects specified via MarkAsGarbage with GC mark
// without any object restrictions checks.
func (p *InhumePrm) WithForceRemoval() {
p.forceRemoval = true
p.tombstone = nil
}
var errInhumeFailure = errors.New("inhume operation failed")
// Inhume calls metabase. Inhume method to mark an object as removed. It won't be
// removed physically from the shard until `Delete` operation.
//
// Allows inhuming non-locked objects only. Returns apistatus.ObjectLocked
// if at least one object is locked.
//
// NOTE: Marks any object as removed (despite any prohibitions on operations
// with that object) if WithForceRemoval option has been provided.
//
// Returns an error if executions are blocked (see BlockExecution).
func (e *StorageEngine) Inhume(ctx context.Context, prm InhumePrm) (res InhumeRes, err error) {
ctx, span := tracing.StartSpanFromContext(ctx, "StorageEngine.Inhume")
defer span.End()
err = e.execIfNotBlocked(func() error {
res, err = e.inhume(ctx, prm)
return err
})
return
}
func (e *StorageEngine) inhume(ctx context.Context, prm InhumePrm) (InhumeRes, error) {
if e.metrics != nil {
defer elapsed("Inhume", e.metrics.AddMethodDuration)()
}
var shPrm shard.InhumePrm
if prm.forceRemoval {
shPrm.ForceRemoval()
}
for i := range prm.addrs {
if !prm.forceRemoval {
locked, err := e.IsLocked(ctx, prm.addrs[i])
if err != nil {
e.log.Warn(logs.EngineRemovingAnObjectWithoutFullLockingCheck,
zap.Error(err),
zap.Stringer("addr", prm.addrs[i]),
zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
} else if locked {
return InhumeRes{}, new(apistatus.ObjectLocked)
}
}
if prm.tombstone != nil {
shPrm.SetTarget(*prm.tombstone, prm.addrs[i])
} else {
shPrm.MarkAsGarbage(prm.addrs[i])
}
ok, err := e.inhumeAddr(ctx, prm.addrs[i], shPrm, true)
if err != nil {
return InhumeRes{}, err
}
if !ok {
ok, err := e.inhumeAddr(ctx, prm.addrs[i], shPrm, false)
if err != nil {
return InhumeRes{}, err
} else if !ok {
return InhumeRes{}, errInhumeFailure
}
}
}
return InhumeRes{}, nil
}
// Returns ok if object was inhumed during this invocation or before.
func (e *StorageEngine) inhumeAddr(ctx context.Context, addr oid.Address, prm shard.InhumePrm, checkExists bool) (bool, error) {
root := false
var existPrm shard.ExistsPrm
var retErr error
var ok bool
e.iterateOverSortedShards(addr, func(_ int, sh hashedShard) (stop bool) {
defer func() {
// if object is root we continue since information about it
// can be presented in other shards
if checkExists && root {
stop = false
}
}()
if checkExists {
existPrm.SetAddress(addr)
exRes, err := sh.Exists(ctx, existPrm)
if err != nil {
if client.IsErrObjectAlreadyRemoved(err) || shard.IsErrObjectExpired(err) {
// inhumed once - no need to be inhumed again
ok = true
return true
}
var siErr *objectSDK.SplitInfoError
if !errors.As(err, &siErr) {
e.reportShardError(sh, "could not check for presents in shard", err)
return
}
root = true
} else if !exRes.Exists() {
return
}
}
_, err := sh.Inhume(ctx, prm)
if err != nil {
var errLocked *apistatus.ObjectLocked
switch {
case errors.As(err, &errLocked):
retErr = new(apistatus.ObjectLocked)
return true
case errors.Is(err, shard.ErrLockObjectRemoval):
retErr = meta.ErrLockObjectRemoval
return true
case errors.Is(err, shard.ErrReadOnlyMode) || errors.Is(err, shard.ErrDegradedMode):
retErr = err
return true
}
e.reportShardError(sh, "could not inhume object in shard", err)
return false
}
ok = true
return true
})
return ok, retErr
}
// IsLocked checks whether an object is locked according to StorageEngine's state.
func (e *StorageEngine) IsLocked(ctx context.Context, addr oid.Address) (bool, error) {
ctx, span := tracing.StartSpanFromContext(ctx, "StorageEngine.IsLocked",
trace.WithAttributes(
attribute.String("address", addr.EncodeToString()),
))
defer span.End()
var locked bool
var err error
var outErr error
e.iterateOverUnsortedShards(func(h hashedShard) (stop bool) {
locked, err = h.Shard.IsLocked(ctx, addr)
if err != nil {
e.reportShardError(h, "can't check object's lockers", err, zap.Stringer("addr", addr),
zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
outErr = err
return false
}
return locked
})
if locked {
return locked, nil
}
return locked, outErr
}
func (e *StorageEngine) processExpiredTombstones(ctx context.Context, addrs []meta.TombstonedObject) {
e.iterateOverUnsortedShards(func(sh hashedShard) (stop bool) {
sh.HandleExpiredTombstones(ctx, addrs)
select {
case <-ctx.Done():
return true
default:
return false
}
})
}
func (e *StorageEngine) processExpiredLocks(ctx context.Context, epoch uint64, lockers []oid.Address) {
e.iterateOverUnsortedShards(func(sh hashedShard) (stop bool) {
sh.HandleExpiredLocks(ctx, epoch, lockers)
select {
case <-ctx.Done():
e.log.Info(logs.EngineInterruptProcessingTheExpiredLocks, zap.Error(ctx.Err()))
return true
default:
return false
}
})
}
func (e *StorageEngine) processDeletedLocks(ctx context.Context, lockers []oid.Address) {
e.iterateOverUnsortedShards(func(sh hashedShard) (stop bool) {
sh.HandleDeletedLocks(lockers)
select {
case <-ctx.Done():
e.log.Info(logs.EngineInterruptProcessingTheDeletedLocks, zap.Error(ctx.Err()))
return true
default:
return false
}
})
}
func (e *StorageEngine) processZeroSizeContainers(ctx context.Context, ids []cid.ID) {
if len(ids) == 0 {
return
}
idMap, err := e.selectNonExistentIDs(ctx, ids)
if err != nil {
return
}
if len(idMap) == 0 {
return
}
var failed bool
var prm shard.ContainerSizePrm
e.iterateOverUnsortedShards(func(sh hashedShard) bool {
select {
case <-ctx.Done():
e.log.Info(logs.EngineInterruptProcessingZeroSizeContainers, zap.Error(ctx.Err()))
failed = true
return true
default:
}
var drop []cid.ID
for id := range idMap {
prm.SetContainerID(id)
s, err := sh.ContainerSize(prm)
if err != nil {
e.log.Warn(logs.EngineFailedToGetContainerSize, zap.Stringer("container_id", id), zap.Error(err))
failed = true
return true
}
if s.Size() > 0 {
drop = append(drop, id)
}
}
for _, id := range drop {
delete(idMap, id)
}
return len(idMap) == 0
})
if failed || len(idMap) == 0 {
return
}
e.iterateOverUnsortedShards(func(sh hashedShard) bool {
select {
case <-ctx.Done():
e.log.Info(logs.EngineInterruptProcessingZeroSizeContainers, zap.Error(ctx.Err()))
failed = true
return true
default:
}
for id := range idMap {
if err := sh.DeleteContainerSize(ctx, id); err != nil {
e.log.Warn(logs.EngineFailedToDeleteContainerSize, zap.Stringer("container_id", id), zap.Error(err))
failed = true
return true
}
}
return false
})
if failed {
return
}
for id := range idMap {
e.metrics.DeleteContainerSize(id.EncodeToString())
}
}
func (e *StorageEngine) processZeroCountContainers(ctx context.Context, ids []cid.ID) {
if len(ids) == 0 {
return
}
idMap, err := e.selectNonExistentIDs(ctx, ids)
if err != nil {
return
}
if len(idMap) == 0 {
return
}
var failed bool
var prm shard.ContainerCountPrm
e.iterateOverUnsortedShards(func(sh hashedShard) bool {
select {
case <-ctx.Done():
e.log.Info(logs.EngineInterruptProcessingZeroCountContainers, zap.Error(ctx.Err()))
failed = true
return true
default:
}
var drop []cid.ID
for id := range idMap {
prm.ContainerID = id
s, err := sh.ContainerCount(ctx, prm)
if err != nil {
e.log.Warn(logs.EngineFailedToGetContainerCounters, zap.Stringer("container_id", id), zap.Error(err))
failed = true
return true
}
if s.User > 0 || s.Logic > 0 || s.Phy > 0 {
drop = append(drop, id)
}
}
for _, id := range drop {
delete(idMap, id)
}
return len(idMap) == 0
})
if failed || len(idMap) == 0 {
return
}
e.iterateOverUnsortedShards(func(sh hashedShard) bool {
select {
case <-ctx.Done():
e.log.Info(logs.EngineInterruptProcessingZeroCountContainers, zap.Error(ctx.Err()))
failed = true
return true
default:
}
for id := range idMap {
if err := sh.DeleteContainerCount(ctx, id); err != nil {
e.log.Warn(logs.EngineFailedToDeleteContainerSize, zap.Stringer("container_id", id), zap.Error(err))
failed = true
return true
}
}
return false
})
if failed {
return
}
for id := range idMap {
e.metrics.DeleteContainerCount(id.EncodeToString())
}
}
func (e *StorageEngine) selectNonExistentIDs(ctx context.Context, ids []cid.ID) (map[cid.ID]struct{}, error) {
cs := e.containerSource.Load()
idMap := make(map[cid.ID]struct{})
for _, id := range ids {
isAvailable, err := cs.IsContainerAvailable(ctx, id)
if err != nil {
e.log.Warn(logs.EngineFailedToCheckContainerAvailability, zap.Stringer("container_id", id), zap.Error(err))
return nil, err
}
if isAvailable {
continue
}
idMap[id] = struct{}{}
}
return idMap, nil
}