8000 fix(cdn): remove lock + increase delay of buffler clean (#5837) · ovh/cds@1f88624 · GitHub
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sguiheuxsguiheux
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fix(cdn): remove lock + increase delay of buffler clean (#5837)
1 parent 861df2d commit 1f88624

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6 files changed

+6
-252
lines changed

6 files changed

+6
-252
lines changed

‎engine/cdn/cdn_gc.go

Lines changed: 2 additions & 32 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,6 @@ import (
77

88
"github.com/rockbears/log"
99

10-
"github.com/ovh/cds/engine/cache"
1110
"github.com/ovh/cds/engine/cdn/item"
1211
"github.com/ovh/cds/engine/cdn/storage"
1312
"github.com/ovh/cds/sdk"
@@ -39,7 +38,7 @@ func (s *Service) itemPurge(ctx context.Context) {
3938

4039
// ItemsGC clean long incoming item + delete item from buffer when synchronized everywhere
4140
func (s *Service) itemsGC(ctx context.Context) {
42-
tickGC := time.NewTicker(1 * time.Minute)
41+
tickGC := time.NewTicker(30 * time.Minute)
4342
defer tickGC.Stop()
4443
for {
4544
select {
@@ -160,43 +159,14 @@ func (s *Service) cleanBuffer(ctx context.Context) error {
160159
log.Error(ctx, "unable to load item units: %v", err)
161160
continue
162161
}
163-
164-
itemUnitsToMark := make([]string, 0, len(itemUnitsIDs))
165-
for i := range itemUnitsIDs {
166-
uiID := itemUnitsIDs[i]
167-
lockKey := cache.Key(storage.FileBufferKey, bu.ID(), "lock", uiID)
168-
b, err := s.Cache.Lock(lockKey, 30*time.Second, 0, 1)
169-
if err != nil {
170-
log.Error(ctx, "unable to lock unit item: %v: %v", uiID, err)
171-
continue
172-
}
173-
if !b {
174-
log.Info(ctx, "do not delete item unit %s, already locked: %v", uiID)
175-
continue
176-
}
177-
readerPatternKey := cache.Key(storage.FileBufferKey, bu.ID(), "reader", uiID, "*")
178-
keys, err := s.Cache.Keys(cache.Key(readerPatternKey))
179-
if err != nil {
180-
log.Error(ctx, "unable to check if item unit is currently reading by cdn")
181-
_ = s.Cache.Unlock(lockKey)
182-
continue
183-
}
184-
if len(keys) > 0 {
185-
log.Info(ctx, "do not delete item unit, it is currently reading by cdn")
186-
_ = s.Cache.Unlock(lockKey)
187-
continue
188-
}
189-
itemUnitsToMark = append(itemUnitsToMark, uiID)
190-
}
191-
192162
tx, err := s.mustDBWithCtx(ctx).Begin()
193163
if err != nil {
194164
ctx := sdk.ContextWithStacktrace(ctx, err)
195165
log.Error(ctx, "unable to start transaction: %v", err)
196166
continue
197167
}
198168

199-
if _, err := storage.MarkItemUnitToDelete(tx, itemUnitsToMark); err != nil {
169+
if _, err := storage.MarkItemUnitToDelete(tx, itemUnitsIDs); err != nil {
200170
_ = tx.Rollback()
201171
ctx := sdk.ContextWithStacktrace(ctx, err)
202172
log.Error(ctx, "unable to mark item as delete: %v", err)

‎engine/cdn/cdn_gc_test.go

Lines changed: 0 additions & 125 deletions
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,6 @@ import (
1111
"github.com/rockbears/log"
1212
"github.com/stretchr/testify/require"
1313

14-
"github.com/ovh/cds/engine/cache"
1514
"github.com/ovh/cds/engine/cdn/item"
1615
"github.com/ovh/cds/engine/cdn/lru"
1716
"github.com/ovh/cds/engine/cdn/storage"
@@ -505,127 +504,3 @@ func TestPurgeItem(t *testing.T) {
505504
require.NoError(t, err)
506505
require.Equal(t, 1, len(items))
507506
}
508-
509-
func TestCleanSynchronizedReadingItem(t *testing.T) {
510-
m := gorpmapper.New()
511-
item.InitDBMapping(m)
512-
storage.InitDBMapping(m)
513-
514-
log.Factory = log.NewTestingWrapper(t)
515-
db, factory, store, cancel := test.SetupPGToCancel(t, m, sdk.TypeCDN)
516-
t.Cleanup(cancel)
517-
518-
cfg := test.LoadTestingConf(t, sdk.TypeCDN)
519-
520-
cdntest.ClearItem(t, context.TODO(), m, db)
521-
cdntest.ClearUnits(t, context.TODO(), m, db)
522-
523-
// Create cdn service
524-
s := Service{
525-
DBConnectionFactory: factory,
526-
Cache: store,
527-
Mapper: m,
528-
}
529-
s.GoRoutines = sdk.NewGoRoutines(context.TODO())
530-
531-
tmpDir, err := ioutil.TempDir("", t.Name()+"-cdn-1-*")
532-
require.NoError(t, err)
533-
534-
tmpDir2, err := ioutil.TempDir("", t.Name()+"-cdn-2-*")
535-
require.NoError(t, err)
536-
537-
ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
538-
t.Cleanup(cancel)
539-
540-
cdnUnits, err := storage.Init(ctx, m, store, db.DbMap, sdk.NewGoRoutines(ctx), storage.Configuration{
541-
HashLocatorSalt: "thisismysalt",
542-
Buffers: map[string]storage.BufferConfiguration{
543-
"redis_buffer": {
544-
Redis: &storage.RedisBufferConfiguration{
545-
Host: cfg["redisHost"],
546-
Password: cfg["redisPassword"],
547-
},
548-
BufferType: storage.CDNBufferTypeLog,
549-
},
550-
"file_buffer": {
551-
Local: &storage.LocalBufferConfiguration{
552-
Path: tmpDir2,
553-
},
554-
BufferType: storage.CDNBufferTypeFile,
555-
},
556-
},
557-
Storages: map[string]storage.StorageConfiguration{
558-
"fs-backend": {
559-
Local: &storage.LocalStorageConfiguration{
560-
Path: tmpDir,
561-
Encryption: []convergent.ConvergentEncryptionConfig{
562-
{
563-
Cipher: aesgcm.CipherName,
564-
LocatorSalt: "secret_locator_salt",
565-
SecretValue: "secret_value",
566-
},
567-
},
568-
},
569-
},
570-
"cds-backend": {
571-
CDS: &storage.CDSStorageConfiguration{
572-
Host: "lolcat.host",
573-
Token: "mytoken",
574-
},
575-
},
576-
},
577-
})
578-
require.NoError(t, err)
579-
s.Units = cdnUnits
580-
581-
// Add Item in redis / fs/ cds -will be delete from redis
582-
it := sdk.CDNItem{
583-
ID: sdk.UUID(),
584-
Type: sdk.CDNTypeItemRunResult,
585-
Status: sdk.CDNStatusItemCompleted,
586-
APIRefHash: sdk.RandomString(10),
587-
}
588-
require.NoError(t, item.Insert(context.TODO(), s.Mapper, db, &it))
589-
iuCDS := sdk.CDNItemUnit{UnitID: s.Units.Storages[1].ID(), ItemID: it.ID, Type: it.Type}
590-
require.NoError(t, storage.InsertItemUnit(context.TODO(), s.Mapper, db, &iuCDS))
591-
iuFileBuf := sdk.CDNItemUnit{UnitID: s.Units.FileBuffer().ID(), ItemID: it.ID, Type: it.Type}
592-
require.NoError(t, storage.InsertItemUnit(context.TODO(), s.Mapper, db, &iuFileBuf))
593-
iuFileStorage := sdk.CDNItemUnit{UnitID: s.Units.Storages[0].ID(), ItemID: it.ID, Type: it.Type}
594-
require.NoError(t, storage.InsertItemUnit(context.TODO(), s.Mapper, db, &iuFileStorage))
595-
596-
///////////////////////////////////////
597-
// 1st test, getItem Lock the item unit
598-
///////////////////////////////////////
599-
lockKey := cache.Key(storage.FileBufferKey, s.Units.FileBuffer().ID(), "lock", iuFileBuf.ID)
600-
hasLocked, err := s.Cache.Lock(lockKey, 5*time.Second, 0, 1)
601-
require.NoError(t, err)
602-
t.Cleanup(func() {
603-
s.Cache.Unlock(lockKey)
604-
})
605-
require.True(t, hasLocked)
606-
require.NoError(t, s.cleanBuffer(context.TODO()))
607-
608-
_, err = storage.LoadItemUnitByID(ctx, m, db, iuFileBuf.ID)
609-
require.NoError(t, err)
610-
611-
require.NoError(t, s.Cache.Unlock(lockKey))
612-
613-
////////////////////////////////////////////////////////
614-
// 2nd test, getItem is reading the file from the buffer
615-
////////////////////////////////////////////////////////
616-
readerKey := cache.Key(storage.FileBufferKey, s.Units.FileBuffer().ID(), "reader", iuFileBuf.ID, sdk.UUID())
617-
require.NoError(t, s.Cache.SetWithTTL(readerKey, true, 30))
618-
require.NoError(t, s.cleanBuffer(context.TODO()))
619-
620-
_, err = storage.LoadItemUnitByID(ctx, m, db, iuFileBuf.ID)
621-
require.NoError(t, err)
622-
623-
require.NoError(t, s.Cache.Delete(readerKey))
624-
////////////////////////////////////////////////////////
625-
// 3rd test, mark as delete
626-
////////////////////////////////////////////////////////
627-
require.NoError(t, s.cleanBuffer(context.TODO()))
628-
629-
_, err = storage.LoadItemUnitByID(ctx, m, db, iuFileBuf.ID)
630-
require.True(t, sdk.ErrorIs(err, sdk.ErrNotFound))
631-
}

‎engine/cdn/cdn_item.go

Lines changed: 3 additions & 38 deletions
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,6 @@ import (
1515

1616
"github.com/rockbears/log"
1717

18-
"github.com/ovh/cds/engine/cache"
1918
"github.com/ovh/cds/engine/cdn/item"
2019
"github.com/ovh/cds/engine/cdn/storage"
2120
"github.com/ovh/cds/engine/gorpmapper"
@@ -210,45 +209,11 @@ func (s *Service) getItemFileValue(ctx context.Context, t sdk.CDNItemType, apiRe
210209
// If item is in Buffer, get from it
211210
if itemUnit != nil {
212211
log.Debug(ctx, "getItemFileValue> Getting file from buffer")
213-
ignoreBuffer := false
214-
lockKey := cache.Key(storage.FileBufferKey, s.Units.FileBuffer().ID(), "lock", itemUnit.ID)
215-
hasLocked, err := s.Cache.Lock(lockKey, 5*time.Second, 0, 1)
212+
rc, err := s.Units.FileBuffer().NewReader(ctx, *itemUnit)
216213
if err != nil {
217-
log.Error(ctx, "unable to get lock for %s", lockKey)
218-
ignoreBuffer = true
219-
}
220-
if hasLocked {
221-
// Reload to be sure that it's not marked as delete
222-
_, err := storage.LoadItemUnitByID(ctx, s.Mapper, s.mustDBWithCtx(ctx), itemUnit.ID)
223-
if err != nil {
224-
if !sdk.ErrorIs(err, sdk.ErrNotFound) {
225-
log.Error(ctx, "unable to load item unit: %v", err)
226-
}
227-
ignoreBuffer = true
228-
}
229-
230-
if !ignoreBuffer {
231-
readerKey := cache.Key(storage.FileBufferKey, s.Units.FileBuffer().ID(), "reader", itemUnit.ID, sdk.UUID())
232-
if err := s.Cache.SetWithTTL(readerKey, true, 300); err != nil {
233-
log.Error(ctx, "unable to set reader on file buffer: %v", err)
234-
ignoreBuffer = true
235-
}
236-
}
237-
238-
if err := s.Cache.Unlock(lockKey); err != nil {
239-
log.Error(ctx, "unable to release lock for %s", lockKey)
240-
}
241-
} else {
242-
ignoreBuffer = true
243-
}
244-
245-
if !ignoreBuffer {
246-
rc, err := s.Units.FileBuffer().NewReader(ctx, *itemUnit)
247-
if err != nil {
248-
return nil, nil, nil, err
249-
}
250-
return itemUnit, s.Units.FileBuffer(), rc, nil
214+
return nil, nil, nil, err
251215
}
216+
return itemUnit, s.Units.FileBuffer(), rc, nil
252217

253218
}
254219

‎engine/cdn/cdn_item_test.go

Lines changed: 0 additions & 52 deletions
Original file line numberDiff line numberDiff line change
@@ -13,7 +13,6 @@ import (
1313
"github.com/rockbears/log"
1414
"github.com/stretchr/testify/require"
1515

16-
"github.com/ovh/cds/engine/cache"
1716
"github.com/ovh/cds/engine/cdn/item"
1817
"github.com/ovh/cds/engine/cdn/lru"
1918
"github.com/ovh/cds/engine/cdn/redis"
@@ -510,54 +509,3 @@ func TestGetItemValue_ThousandLinesReverse(t *testing.T) {
510509
require.Equal(t, int64(0), lines[226].Number)
511510
require.Equal(t, "Line 0\n", lines[226].Value)
512511
}
513-
514-
func TestGetFileItemFromBuffer(t *testing.T) {
515-
m := gorpmapper.New()
516-
item.InitDBMapping(m)
517-
storage.InitDBMapping(m)
518-
519-
log.Factory = log.NewTestingWrapper(t)
520-
db, factory, store, cancel := test.SetupPGToCancel(t, m, sdk.TypeCDN)
521-
t.Cleanup(cancel)
522-
523-
cdntest.ClearItem(t, context.TODO(), m, db)
524-
cdntest.ClearSyncRedisSet(t, store, "local_storage")
525-
526-
// Create cdn service
527-
s := Service{
528-
DBConnectionFactory: factory,
529-
Cache: store,
530-
Mapper: m,
531-
}
532-
s.GoRoutines = sdk.NewGoRoutines(context.TODO())
533-
534-
ctx, cancel := context.WithCancel(context.TODO())
535-
t.Cleanup(cancel)
536-
537-
_ = test.LoadTestingConf(t, sdk.TypeCDN)
538-
cdnUnits := newRunningStorageUnits(t, m, s.DBConnectionFactory.GetDBMap(m)(), ctx, store)
539-
s.Units = cdnUnits
540-
541-
// Add Item in redis / fs/ cds -will be delete from redis
542-
it := sdk.CDNItem{
543-
ID: sdk.UUID(),
544-
Type: sdk.CDNTypeItemRunResult,
545-
Status: sdk.CDNStatusItemCompleted,
546-
APIRefHash: sdk.RandomString(10),
547-
}
548-
require.NoError(t, item.Insert(context.TODO(), s.Mapper, db, &it))
549-
iuFileBuf := sdk.CDNItemUnit{UnitID: s.Units.FileBuffer().ID(), ItemID: it.ID, Type: it.Type}
550-
require.NoError(t, storage.InsertItemUnit(context.TODO(), s.Mapper, db, &iuFileBuf))
551-
552-
// IU locked by gc
553-
lockKey := cache.Key(storage.FileBufferKey, s.Units.FileBuffer().ID(), "lock", iuFileBuf.ID)
554-
hasLocked, err := s.Cache.Lock(lockKey, 5*time.Second, 0, 1)
555-
require.NoError(t, err)
556-
require.True(t, hasLocked)
557-
558-
ui, unit, reader, err := s.getItemFileValue(ctx, sdk.CDNTypeItemRunResult, it.APIRefHash, getItemFileOptions{})
559-
require.Nil(t, reader)
560-
require.Nil(t, ui)
561-
require.Nil(t, unit)
562-
require.Contains(t, err.Error(), "unable to find item units for item with id: "+it.ID)
563-
}

‎engine/cdn/storage/dao.go

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -143,7 +143,7 @@ func LoadAllSynchronizedItemIDs(db gorp.SqlExecutor, bufferUnitID string, maxSto
143143
WITH inBuffer as (
144144
SELECT item_id
145145
FROM storage_unit_item
146-
WHERE unit_id = $2
146+
WHERE unit_id = $2 AND last_modified < NOW() - INTERVAL '15 minutes'
147147
)
148148
SELECT item_id
149149
FROM storage_unit_item

‎engine/cdn/storage/storageunit.go

Lines changed: 0 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -20,10 +20,6 @@ import (
2020
cdslog "github.com/ovh/cds/sdk/log"
2121
)
2222

23-
var (
24-
FileBufferKey = cache.Key("cdn", "unit")
25-
)
26-
2723
func (r RunningStorageUnits) Storage(name string) StorageUnit {
2824
for _, x := range r.Storages {
2925
if x.Name() == name {

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