diff --git a/pkg/cloudcommon/db/quotas/handler.go b/pkg/cloudcommon/db/quotas/handler.go
index d250e7c129..0b43eb10e8 100644
--- a/pkg/cloudcommon/db/quotas/handler.go
+++ b/pkg/cloudcommon/db/quotas/handler.go
@@ -88,7 +88,7 @@ func AddQuotaHandler(manager *SQuotaBaseManager, prefix string, app *appsrv.Appl
 	auth.Authenticate(checkQuotaHanlder), nil, "check_quota", nil)*/
 }
 
-func (manager *SQuotaBaseManager) queryQuota(ctx context.Context, scope rbacutils.TRbacScope, ownerId mcclient.IIdentityProvider, platforma []string) (*jsonutils.JSONDict, IQuota, error) {
+func (manager *SQuotaBaseManager) queryQuota(ctx context.Context, scope rbacutils.TRbacScope, ownerId mcclient.IIdentityProvider, platforma []string, refresh bool) (*jsonutils.JSONDict, IQuota, error) {
 	ret := jsonutils.NewDict()
 
 	quota := manager.newQuota()
@@ -101,9 +101,9 @@ func (manager *SQuotaBaseManager) queryQuota(ctx context.Context, scope rbacutil
 	if err != nil {
 		return nil, nil, err
 	}
-	if usage.IsEmpty() {
+	if usage.IsEmpty() || refresh {
 		usageChan := make(chan IQuota)
-		manager.PostUsageJob(scope, ownerId, nil, usageChan, false)
+		manager.PostUsageJob(scope, ownerId, nil, usageChan, false, true)
 
 		usage = <-usageChan
 	}
@@ -157,7 +157,7 @@ func (manager *SQuotaBaseManager) getQuotaHanlder(ctx context.Context, w http.Re
 		scope = rbacutils.ScopeProject
 	}
 
-	quota, _, err := manager.queryQuota(ctx, scope, ownerId, nil)
+	quota, _, err := manager.queryQuota(ctx, scope, ownerId, nil, true)
 
 	if err != nil {
 		httperrors.GeneralServerError(w, err)
@@ -455,7 +455,7 @@ func (manager *SQuotaBaseManager) listQuotas(ctx context.Context, targetDomainId
 			scope = rbacutils.ScopeDomain
 		}
 		platform := strings.Split(platformStr, nameSeparator)
-		quota, _, err := manager.queryQuota(ctx, scope, &owner, platform)
+		quota, _, err := manager.queryQuota(ctx, scope, &owner, platform, false)
 		if err != nil {
 			log.Errorf("query quota for %s fail %s", getMemoryStoreKey(scope, &owner, platform), err)
 			continue
@@ -494,7 +494,7 @@ func (manager *SQuotaBaseManager) listQuotas(ctx context.Context, targetDomainId
 			DomainId: targetDomainId,
 		}
 		platform := []string{}
-		quota, _, err := manager.queryQuota(ctx, scope, &owner, platform)
+		quota, _, err := manager.queryQuota(ctx, scope, &owner, platform, false)
 		if err != nil {
 			return nil, httperrors.NewInternalServerError("query domain initial quotas %s", err)
 		}
diff --git a/pkg/cloudcommon/db/quotas/quotas.go b/pkg/cloudcommon/db/quotas/quotas.go
index 445be41f34..a6f974509a 100644
--- a/pkg/cloudcommon/db/quotas/quotas.go
+++ b/pkg/cloudcommon/db/quotas/quotas.go
@@ -87,7 +87,7 @@ func (manager *SQuotaBaseManager) _cancelPendingUsage(ctx context.Context, userC
 	}
 
 	// update usage
-	manager.PostUsageJob(scope, ownerId, platform, nil, false)
+	manager.PostUsageJob(scope, ownerId, platform, nil, false, false)
 	return err
 }
 
diff --git a/pkg/cloudcommon/db/quotas/usageworker.go b/pkg/cloudcommon/db/quotas/usageworker.go
index 930a44168e..78ae712605 100644
--- a/pkg/cloudcommon/db/quotas/usageworker.go
+++ b/pkg/cloudcommon/db/quotas/usageworker.go
@@ -34,9 +34,11 @@ import (
 )
 
 var (
-	usageCalculateWorker = appsrv.NewWorkerManager("usageCalculateWorker", 1, 1024, true)
-	usageDirtyMap        = make(map[string]bool, 0)
-	usageDirtyMapLock    = &sync.Mutex{}
+	usageCalculateWorker         = appsrv.NewWorkerManager("usageCalculateWorker", 1, 1024, true)
+	realTimeUsageCalculateWorker = appsrv.NewWorkerManager("realTimeUsageCalculateWorker", 1, 1024, true)
+
+	usageDirtyMap     = make(map[string]bool, 0)
+	usageDirtyMapLock = &sync.Mutex{}
 )
 
 type sUsageCalculateJob struct {
@@ -70,11 +72,18 @@ func isDirty(key string) bool {
 	return false
 }
 
-func (manager *SQuotaBaseManager) PostUsageJob(scope rbacutils.TRbacScope, ownerId mcclient.IIdentityProvider, platform []string, usageChan chan IQuota, cleanEmpty bool) {
+func (manager *SQuotaBaseManager) PostUsageJob(scope rbacutils.TRbacScope, ownerId mcclient.IIdentityProvider, platform []string, usageChan chan IQuota, cleanEmpty bool, realTime bool) {
 	key := getMemoryStoreKey(scope, ownerId, platform)
 	setDirty(key)
 
-	usageCalculateWorker.Run(func() {
+	var worker *appsrv.SWorkerManager
+	if realTime {
+		worker = realTimeUsageCalculateWorker
+	} else {
+		worker = usageCalculateWorker
+	}
+
+	worker.Run(func() {
 		ctx := context.Background()
 
 		if !isDirty(key) {
@@ -167,6 +176,6 @@ func (manager *SQuotaBaseManager) CalculateQuotaUsages(ctx context.Context, user
 		}
 		platforms := strings.Split(platform, nameSeparator)
 		// log.Debugf("PostUsageJob %s %s %s", scope, owner, platforms)
-		manager.PostUsageJob(scope, &owner, platforms, nil, true)
+		manager.PostUsageJob(scope, &owner, platforms, nil, true, false)
 	}
 }
diff --git a/pkg/cloudcommon/db/taskman/interface.go b/pkg/cloudcommon/db/taskman/interface.go
index e0b779d665..998e812749 100644
--- a/pkg/cloudcommon/db/taskman/interface.go
+++ b/pkg/cloudcommon/db/taskman/interface.go
@@ -21,6 +21,7 @@ import (
 	"yunion.io/x/jsonutils"
 
 	"yunion.io/x/onecloud/pkg/cloudcommon"
+	"yunion.io/x/onecloud/pkg/cloudcommon/db/quotas"
 	"yunion.io/x/onecloud/pkg/mcclient"
 )
 
@@ -37,4 +38,7 @@ type ITask interface {
 
 	SetStageComplete(ctx context.Context, data *jsonutils.JSONDict)
 	SetStageFailed(ctx context.Context, reason string)
+
+	GetPendingUsage(quota quotas.IQuota) error
+	ClearPendingUsage() error
 }
diff --git a/pkg/compute/tasks/disk_batch_create_task.go b/pkg/compute/tasks/disk_batch_create_task.go
index cfbe68eb9e..269d2cd82b 100644
--- a/pkg/compute/tasks/disk_batch_create_task.go
+++ b/pkg/compute/tasks/disk_batch_create_task.go
@@ -48,6 +48,12 @@ func (self *DiskBatchCreateTask) getNeedScheduleDisks(objs []db.IStandaloneModel
 	return toSchedDisks
 }
 
+func (self *DiskBatchCreateTask) clearPendingUsage(ctx context.Context, disk *models.SDisk) {
+	input, _ := self.GetCreateInput()
+	quotaPlatform := models.GetQuotaPlatformID(input.Hypervisor)
+	ClearTaskPendingUsage(ctx, self, rbacutils.ScopeProject, disk.GetOwnerId(), quotaPlatform)
+}
+
 func (self *DiskBatchCreateTask) OnInit(ctx context.Context, objs []db.IStandaloneModel, body jsonutils.JSONObject) {
 	toSchedDisks := self.getNeedScheduleDisks(objs)
 	if len(toSchedDisks) == 0 {
@@ -82,6 +88,7 @@ func (self *DiskBatchCreateTask) OnScheduleFailCallback(ctx context.Context, obj
 	self.SSchedTask.OnScheduleFailCallback(ctx, obj, reason)
 	disk := obj.(*models.SDisk)
 	log.Errorf("Schedule disk %s failed", disk.Name)
+	self.clearPendingUsage(ctx, disk)
 }
 
 func (self *DiskBatchCreateTask) SaveScheduleResult(ctx context.Context, obj IScheduleModel, candidate *schedapi.CandidateResource) {
@@ -93,13 +100,14 @@ func (self *DiskBatchCreateTask) SaveScheduleResult(ctx context.Context, obj ISc
 		log.Errorf("GetPendingUsage fail %s", err)
 	}
 
-	input, _ := self.GetCreateInput()
-	quotaPlatform := models.GetQuotaPlatformID(input.Hypervisor)
+	// input, _ := self.GetCreateInput()
+	// quotaPlatform := models.GetQuotaPlatformID(input.Hypervisor)
 
-	quotaStorage := models.SQuota{Storage: disk.DiskSize}
+	// quotaStorage := models.SQuota{Storage: disk.DiskSize}
 
 	onError := func(err error) {
-		models.QuotaManager.CancelPendingUsage(ctx, self.UserCred, rbacutils.ScopeProject, disk.GetOwnerId(), quotaPlatform, &pendingUsage, &quotaStorage)
+		// models.QuotaManager.CancelPendingUsage(ctx, self.UserCred, rbacutils.ScopeProject, disk.GetOwnerId(), quotaPlatform, &pendingUsage, &quotaStorage)
+		self.clearPendingUsage(ctx, disk)
 		disk.SetStatus(self.UserCred, api.DISK_ALLOC_FAILED, err.Error())
 		self.SetStageFailed(ctx, err.Error())
 		db.OpsLog.LogEvent(disk, db.ACT_ALLOCATE_FAIL, err, self.UserCred)
@@ -120,11 +128,12 @@ func (self *DiskBatchCreateTask) SaveScheduleResult(ctx context.Context, obj ISc
 	}
 	err = disk.SetStorageByHost(hostId, diskConfig, storageIds)
 	if err != nil {
-		models.QuotaManager.CancelPendingUsage(ctx, self.UserCred, rbacutils.ScopeProject, disk.GetOwnerId(), quotaPlatform, &pendingUsage, &quotaStorage)
-		disk.SetStatus(self.UserCred, api.DISK_ALLOC_FAILED, err.Error())
-		self.SetStageFailed(ctx, err.Error())
-		db.OpsLog.LogEvent(disk, db.ACT_ALLOCATE_FAIL, err, self.UserCred)
-		notifyclient.NotifySystemError(disk.Id, disk.Name, api.DISK_ALLOC_FAILED, err.Error())
+		onError(err)
+		// models.QuotaManager.CancelPendingUsage(ctx, self.UserCred, rbacutils.ScopeProject, disk.GetOwnerId(), quotaPlatform, &pendingUsage, &quotaStorage)
+		// disk.SetStatus(self.UserCred, api.DISK_ALLOC_FAILED, err.Error())
+		// self.SetStageFailed(ctx, err.Error())
+		// db.OpsLog.LogEvent(disk, db.ACT_ALLOCATE_FAIL, err, self.UserCred)
+		// notifyclient.NotifySystemError(disk.Id, disk.Name, api.DISK_ALLOC_FAILED, err.Error())
 		return
 	}
 
diff --git a/pkg/compute/tasks/guest_batch_create_task.go b/pkg/compute/tasks/guest_batch_create_task.go
index 528e0ccd0d..d454847fe0 100644
--- a/pkg/compute/tasks/guest_batch_create_task.go
+++ b/pkg/compute/tasks/guest_batch_create_task.go
@@ -44,6 +44,15 @@ func (self *GuestBatchCreateTask) GetCreateInput() (*api.ServerCreateInput, erro
 	return input, err
 }
 
+func (self *GuestBatchCreateTask) clearPendingUsage(ctx context.Context, guest *models.SGuest) {
+	platform := make([]string, 0)
+	input, _ := self.GetCreateInput()
+	if len(input.Hypervisor) > 0 {
+		platform = models.GetDriver(input.Hypervisor).GetQuotaPlatformID()
+	}
+	ClearTaskPendingUsage(ctx, self, rbacutils.ScopeProject, guest.GetOwnerId(), platform)
+}
+
 func (self *GuestBatchCreateTask) OnInit(ctx context.Context, objs []db.IStandaloneModel, body jsonutils.JSONObject) {
 	StartScheduleObjects(ctx, self, objs)
 }
@@ -54,6 +63,7 @@ func (self *GuestBatchCreateTask) OnScheduleFailCallback(ctx context.Context, ob
 	if guest.DisableDelete.IsTrue() {
 		guest.SetDisableDelete(self.UserCred, false)
 	}
+	self.clearPendingUsage(ctx, guest)
 }
 
 func (self *GuestBatchCreateTask) SaveScheduleResultWithBackup(ctx context.Context, obj IScheduleModel, master, slave *schedapi.CandidateResource) {
@@ -175,6 +185,7 @@ func (self *GuestBatchCreateTask) SaveScheduleResult(ctx context.Context, obj IS
 
 	err = self.allocateGuestOnHost(ctx, guest, candidate)
 	if err != nil {
+		self.clearPendingUsage(ctx, guest)
 		db.OpsLog.LogEvent(guest, db.ACT_ALLOCATE_FAIL, err, self.UserCred)
 		logclient.AddActionLogWithStartable(self, obj, logclient.ACT_ALLOCATE, err.Error(), self.GetUserCred(), false)
 		notifyclient.NotifySystemError(guest.Id, guest.Name, api.VM_CREATE_FAILED, err.Error())
diff --git a/pkg/compute/tasks/pending_usage.go b/pkg/compute/tasks/pending_usage.go
new file mode 100644
index 0000000000..f4feff7313
--- /dev/null
+++ b/pkg/compute/tasks/pending_usage.go
@@ -0,0 +1,45 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tasks
+
+import (
+	"context"
+
+	"yunion.io/x/log"
+	"yunion.io/x/pkg/errors"
+
+	"yunion.io/x/onecloud/pkg/cloudcommon/db/taskman"
+	"yunion.io/x/onecloud/pkg/compute/models"
+	"yunion.io/x/onecloud/pkg/mcclient"
+	"yunion.io/x/onecloud/pkg/util/rbacutils"
+)
+
+func ClearTaskPendingUsage(ctx context.Context, task taskman.ITask, scope rbacutils.TRbacScope, ownerId mcclient.IIdentityProvider, platform []string) error {
+	pendingUsage := models.SQuota{}
+	err := task.GetPendingUsage(&pendingUsage)
+	if err != nil {
+		log.Errorf("GetPendingUsage fail %s", err)
+		return errors.Wrap(err, "task.GetPendingUsage")
+	}
+	err = models.QuotaManager.CancelPendingUsage(ctx, task.GetUserCred(), scope, ownerId, platform, &pendingUsage, &pendingUsage)
+	if err != nil {
+		return errors.Wrap(err, "models.QuotaManager.CancelPendingUsage")
+	}
+	err = task.ClearPendingUsage()
+	if err != nil {
+		return errors.Wrap(err, "task.ClearPendingUsage")
+	}
+	return nil
+}
diff --git a/pkg/hostman/diskutils/doc.go b/pkg/hostman/diskutils/doc.go
index a23c20344e..53cb65d680 100644
--- a/pkg/hostman/diskutils/doc.go
+++ b/pkg/hostman/diskutils/doc.go
@@ -1 +1,15 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package diskutils // import "yunion.io/x/onecloud/pkg/hostman/diskutils"
diff --git a/pkg/hostman/hostdeployer/apis/doc.go b/pkg/hostman/hostdeployer/apis/doc.go
index 577a579cfc..f8b4172da0 100644
--- a/pkg/hostman/hostdeployer/apis/doc.go
+++ b/pkg/hostman/hostdeployer/apis/doc.go
@@ -1 +1,15 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package apis // import "yunion.io/x/onecloud/pkg/hostman/hostdeployer/apis"
diff --git a/pkg/hostman/hostdeployer/deployclient/doc.go b/pkg/hostman/hostdeployer/deployclient/doc.go
index 3778fee40b..9a4ea1ba2f 100644
--- a/pkg/hostman/hostdeployer/deployclient/doc.go
+++ b/pkg/hostman/hostdeployer/deployclient/doc.go
@@ -1 +1,15 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package deployclient // import "yunion.io/x/onecloud/pkg/hostman/hostdeployer/deployclient"
diff --git a/pkg/hostman/hostdeployer/deployserver/doc.go b/pkg/hostman/hostdeployer/deployserver/doc.go
index e1f3eaba12..6c1235787b 100644
--- a/pkg/hostman/hostdeployer/deployserver/doc.go
+++ b/pkg/hostman/hostdeployer/deployserver/doc.go
@@ -1 +1,15 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package deployserver // import "yunion.io/x/onecloud/pkg/hostman/hostdeployer/deployserver"
diff --git a/pkg/hostman/storageman/storagehandler/doc.go b/pkg/hostman/storageman/storagehandler/doc.go
index ffde444e3e..2ab0804706 100644
--- a/pkg/hostman/storageman/storagehandler/doc.go
+++ b/pkg/hostman/storageman/storagehandler/doc.go
@@ -1 +1,15 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package storagehandler // import "yunion.io/x/onecloud/pkg/hostman/storageman/storagehandler"
diff --git a/pkg/hostman/system_service/host_deployer.go b/pkg/hostman/system_service/host_deployer.go
index 7bb656a288..ec17438caa 100644
--- a/pkg/hostman/system_service/host_deployer.go
+++ b/pkg/hostman/system_service/host_deployer.go
@@ -1,3 +1,17 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package system_service
 
 type SHostDeployer struct {
diff --git a/pkg/util/sysutils/kvm_test.go b/pkg/util/sysutils/kvm_test.go
index 96365adfaf..3d453b1468 100644
--- a/pkg/util/sysutils/kvm_test.go
+++ b/pkg/util/sysutils/kvm_test.go
@@ -1,3 +1,17 @@
+// Copyright 2019 Yunion
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package sysutils
 
 import (