diff --git a/pkg/cloudcommon/db/external.go b/pkg/cloudcommon/db/external.go
index 3c8f8b702b..71f5e2164b 100644
--- a/pkg/cloudcommon/db/external.go
+++ b/pkg/cloudcommon/db/external.go
@@ -66,7 +66,14 @@ func SetExternalId(model IExternalizedModel, userCred mcclient.TokenCredential,
 }
 
 func FetchByExternalId(manager IModelManager, idStr string) (IExternalizedModel, error) {
+	return FetchByExternalIdAndManagerId(manager, idStr, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		return q
+	})
+}
+
+func FetchByExternalIdAndManagerId(manager IModelManager, idStr string, filter func(q *sqlchemy.SQuery) *sqlchemy.SQuery) (IExternalizedModel, error) {
 	q := manager.Query().Equals("external_id", idStr)
+	q = filter(q)
 	count, err := q.CountWithError()
 	if err != nil {
 		return nil, err
diff --git a/pkg/compute/guestdrivers/managedvirtual.go b/pkg/compute/guestdrivers/managedvirtual.go
index e3076ce9b1..10f83edbe2 100644
--- a/pkg/compute/guestdrivers/managedvirtual.go
+++ b/pkg/compute/guestdrivers/managedvirtual.go
@@ -27,6 +27,7 @@ import (
 	"yunion.io/x/pkg/errors"
 	"yunion.io/x/pkg/util/osprofile"
 	"yunion.io/x/pkg/utils"
+	"yunion.io/x/sqlchemy"
 
 	billing_api "yunion.io/x/onecloud/pkg/apis/billing"
 	api "yunion.io/x/onecloud/pkg/apis/compute"
@@ -449,7 +450,9 @@ func (self *SManagedVirtualizedGuestDriver) RemoteDeployGuestForCreate(ctx conte
 		}
 
 		if hostId := iVM.GetIHostId(); len(hostId) > 0 {
-			host, err := db.FetchByExternalId(models.HostManager, hostId)
+			host, err := db.FetchByExternalIdAndManagerId(models.HostManager, hostId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", host.ManagerId)
+			})
 			if err != nil {
 				log.Warningf("failed to found new hostId(%s) for ivm %s(%s) error: %v", hostId, guest.Name, guest.Id, err)
 			} else if host.GetId() != guest.HostId {
@@ -886,7 +889,13 @@ func (self *SManagedVirtualizedGuestDriver) OnGuestDeployTaskDataReceived(ctx co
 				}
 
 				if len(diskInfo[i].StorageExternalId) > 0 {
-					storage, err := db.FetchByExternalId(models.StorageManager, diskInfo[i].StorageExternalId)
+					storage, err := db.FetchByExternalIdAndManagerId(models.StorageManager, diskInfo[i].StorageExternalId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+						host := guest.GetHost()
+						if host != nil {
+							return q.Equals("manager_id", host.ManagerId)
+						}
+						return q
+					})
 					if err != nil {
 						log.Warningf("failed to found storage by externalId %s error: %v", diskInfo[i].StorageExternalId, err)
 					} else if disk.StorageId != storage.GetId() {
diff --git a/pkg/compute/models/cloudproviderregions.go b/pkg/compute/models/cloudproviderregions.go
index c165372084..b27880dc92 100644
--- a/pkg/compute/models/cloudproviderregions.go
+++ b/pkg/compute/models/cloudproviderregions.go
@@ -122,7 +122,7 @@ func (self *SCloudproviderregion) GetAccount() *SCloudaccount {
 func (self *SCloudproviderregion) GetRegion() *SCloudregion {
 	regionObj, err := CloudregionManager.FetchById(self.CloudregionId)
 	if err != nil {
-		log.Errorf("CloudproviderManager.FetchById fail %s", err)
+		log.Errorf("CloudregionManager.FetchById(%s) fail %s", self.CloudregionId, err)
 		return nil
 	}
 	return regionObj.(*SCloudregion)
diff --git a/pkg/compute/models/cloudregions.go b/pkg/compute/models/cloudregions.go
index 28f8c59d00..4537d62909 100644
--- a/pkg/compute/models/cloudregions.go
+++ b/pkg/compute/models/cloudregions.go
@@ -226,15 +226,28 @@ func (self *SCloudregion) getGuestCountInternal(increment bool) (int, error) {
 	return query.CountWithError()
 }
 
-func (self *SCloudregion) GetVpcCount() (int, error) {
+func (self *SCloudregion) GetVpcQuery() *sqlchemy.SQuery {
 	vpcs := VpcManager.Query()
 	if self.Id == api.DEFAULT_REGION_ID {
 		return vpcs.Filter(sqlchemy.OR(sqlchemy.IsNull(vpcs.Field("cloudregion_id")),
 			sqlchemy.IsEmpty(vpcs.Field("cloudregion_id")),
-			sqlchemy.Equals(vpcs.Field("cloudregion_id"), self.Id))).CountWithError()
-	} else {
-		return vpcs.Equals("cloudregion_id", self.Id).CountWithError()
+			sqlchemy.Equals(vpcs.Field("cloudregion_id"), self.Id)))
 	}
+	return vpcs.Equals("cloudregion_id", self.Id)
+}
+
+func (self *SCloudregion) GetVpcCount() (int, error) {
+	return self.GetVpcQuery().CountWithError()
+}
+
+func (self *SCloudregion) GetVpcs() ([]SVpc, error) {
+	vpcs := []SVpc{}
+	q := self.GetVpcQuery()
+	err := db.FetchModelObjects(VpcManager, q, &vpcs)
+	if err != nil {
+		return nil, errors.Wrap(err, "db.FetchModelObjects")
+	}
+	return vpcs, nil
 }
 
 func (self *SCloudregion) GetDriver() IRegionDriver {
@@ -497,7 +510,7 @@ func (self *SCloudregion) AllowPerformDefaultVpc(ctx context.Context, userCred m
 }
 
 func (self *SCloudregion) PerformDefaultVpc(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, data jsonutils.JSONObject) (jsonutils.JSONObject, error) {
-	vpcs, err := VpcManager.getVpcsByRegion(self, nil)
+	vpcs, err := self.GetVpcs()
 	if err != nil {
 		return nil, err
 	}
diff --git a/pkg/compute/models/dbinstance_backups.go b/pkg/compute/models/dbinstance_backups.go
index bb17a5f699..ebb79a1797 100644
--- a/pkg/compute/models/dbinstance_backups.go
+++ b/pkg/compute/models/dbinstance_backups.go
@@ -437,7 +437,9 @@ func (self *SDBInstanceBackup) SyncWithCloudDBInstanceBackup(
 
 		if dbinstanceId := extBackup.GetDBInstanceId(); len(dbinstanceId) > 0 {
 			//有可能云上删除了实例，未删除备份
-			_instance, err := db.FetchByExternalId(DBInstanceManager, dbinstanceId)
+			_instance, err := db.FetchByExternalIdAndManagerId(DBInstanceManager, dbinstanceId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", provider.Id)
+			})
 			if err == sql.ErrNoRows {
 				self.DBInstanceId = ""
 			}
@@ -493,7 +495,9 @@ func (manager *SDBInstanceBackupManager) newFromCloudDBInstanceBackup(
 	backup.ExternalId = extBackup.GetGlobalId()
 
 	if dbinstanceId := extBackup.GetDBInstanceId(); len(dbinstanceId) > 0 {
-		_dbinstance, err := db.FetchByExternalId(DBInstanceManager, dbinstanceId)
+		_dbinstance, err := db.FetchByExternalIdAndManagerId(DBInstanceManager, dbinstanceId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			return q.Equals("manager_id", provider.Id)
+		})
 		if err != nil {
 			log.Warningf("failed to found dbinstance for backup %s by externalId: %s error: %v", backup.Name, dbinstanceId, err)
 		} else {
diff --git a/pkg/compute/models/dbinstancenetworks.go b/pkg/compute/models/dbinstancenetworks.go
index 649c4b8436..62061868f1 100644
--- a/pkg/compute/models/dbinstancenetworks.go
+++ b/pkg/compute/models/dbinstancenetworks.go
@@ -23,6 +23,7 @@ import (
 	"yunion.io/x/pkg/errors"
 	"yunion.io/x/pkg/util/compare"
 	"yunion.io/x/pkg/util/netutils"
+	"yunion.io/x/sqlchemy"
 
 	api "yunion.io/x/onecloud/pkg/apis/compute"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
@@ -162,9 +163,15 @@ func (manager *SDBInstanceNetworkManager) SyncDBInstanceNetwork(ctx context.Cont
 
 func (self *SDBInstanceNetwork) syncWithCloudDBNetwork(ctx context.Context, userCred mcclient.TokenCredential, dbinstance *SDBInstance, network *cloudprovider.SDBInstanceNetwork) error {
 	_, err := db.UpdateWithLock(ctx, self, func() error {
-		_localnetwork, err := db.FetchByExternalId(NetworkManager, network.NetworkId)
+		_localnetwork, err := db.FetchByExternalIdAndManagerId(NetworkManager, network.NetworkId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			wire := WireManager.Query().SubQuery()
+			vpc := VpcManager.Query().SubQuery()
+			return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
+				Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
+				Filter(sqlchemy.Equals(vpc.Field("manager_id"), dbinstance.ManagerId))
+		})
 		if err != nil {
-			return errors.Wrapf(err, "FetchByExternalId")
+			return errors.Wrapf(err, "FetchByExternalIdAndManagerId")
 		}
 		localnetwork := _localnetwork.(*SNetwork)
 		self.NetworkId = localnetwork.Id
@@ -194,9 +201,15 @@ func (manager *SDBInstanceNetworkManager) newFromCloudDBNetwork(ctx context.Cont
 	dbNetwork.SetModelManager(manager, &dbNetwork)
 
 	dbNetwork.DBInstanceId = dbinstance.Id
-	_localnetwork, err := db.FetchByExternalId(NetworkManager, network.NetworkId)
+	_localnetwork, err := db.FetchByExternalIdAndManagerId(NetworkManager, network.NetworkId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		wire := WireManager.Query().SubQuery()
+		vpc := VpcManager.Query().SubQuery()
+		return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
+			Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
+			Filter(sqlchemy.Equals(vpc.Field("manager_id"), dbinstance.ManagerId))
+	})
 	if err != nil {
-		return errors.Wrapf(err, "newFromCloudDBNetwork.FetchByExternalId")
+		return errors.Wrapf(err, "newFromCloudDBNetwork.FetchByExternalIdAndManagerId")
 	}
 
 	localnetwork := _localnetwork.(*SNetwork)
diff --git a/pkg/compute/models/dbinstances.go b/pkg/compute/models/dbinstances.go
index 7a28f6ac7d..7f48c86cfc 100644
--- a/pkg/compute/models/dbinstances.go
+++ b/pkg/compute/models/dbinstances.go
@@ -1236,12 +1236,16 @@ func (manager *SDBInstanceManager) SyncDBInstanceMasterId(ctx context.Context, u
 	for _, instance := range cloudDBInstances {
 		masterId := instance.GetMasterInstanceId()
 		if len(masterId) > 0 {
-			master, err := db.FetchByExternalId(manager, masterId)
+			master, err := db.FetchByExternalIdAndManagerId(manager, masterId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", provider.Id)
+			})
 			if err != nil {
 				log.Errorf("failed to found master dbinstance by externalId: %s error: %v", masterId, err)
 				continue
 			}
-			slave, err := db.FetchByExternalId(manager, instance.GetGlobalId())
+			slave, err := db.FetchByExternalIdAndManagerId(manager, instance.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", provider.Id)
+			})
 			if err != nil {
 				log.Errorf("failed to found local dbinstance by externalId %s error: %v", instance.GetGlobalId(), err)
 				continue
@@ -1495,7 +1499,9 @@ func (self *SDBInstance) SyncWithCloudDBInstance(ctx context.Context, userCred m
 
 		if len(self.VpcId) == 0 {
 			if vpcId := extInstance.GetIVpcId(); len(vpcId) > 0 {
-				vpc, err := db.FetchByExternalId(VpcManager, vpcId)
+				vpc, err := db.FetchByExternalIdAndManagerId(VpcManager, vpcId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+					return q.Equals("manager_id", provider.Id)
+				})
 				if err != nil {
 					return errors.Wrapf(err, "SyncWithCloudDBInstance.FetchVpcId")
 				}
@@ -1580,7 +1586,9 @@ func (manager *SDBInstanceManager) newFromCloudDBInstance(ctx context.Context, u
 	}
 
 	if vpcId := extInstance.GetIVpcId(); len(vpcId) > 0 {
-		vpc, err := db.FetchByExternalId(VpcManager, vpcId)
+		vpc, err := db.FetchByExternalIdAndManagerId(VpcManager, vpcId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			return q.Equals("manager_id", provider.Id)
+		})
 		if err != nil {
 			return nil, errors.Wrapf(err, "newFromCloudDBInstance.FetchVpcId")
 		}
diff --git a/pkg/compute/models/disks.go b/pkg/compute/models/disks.go
index 90eaf72ed1..da89b76c63 100644
--- a/pkg/compute/models/disks.go
+++ b/pkg/compute/models/disks.go
@@ -1217,13 +1217,16 @@ func (manager *SDiskManager) getDisksByStorage(storage *SStorage) ([]SDisk, erro
 	return disks, nil
 }
 
-func (manager *SDiskManager) syncCloudDisk(ctx context.Context, userCred mcclient.TokenCredential, provider cloudprovider.ICloudProvider, vdisk cloudprovider.ICloudDisk, index int, syncOwnerId mcclient.IIdentityProvider) (*SDisk, error) {
+func (manager *SDiskManager) syncCloudDisk(ctx context.Context, userCred mcclient.TokenCredential, provider cloudprovider.ICloudProvider, vdisk cloudprovider.ICloudDisk, index int, syncOwnerId mcclient.IIdentityProvider, managerId string) (*SDisk, error) {
 	// ownerProjId := projectId
 
 	lockman.LockClass(ctx, manager, db.GetLockClassKey(manager, syncOwnerId))
 	defer lockman.ReleaseClass(ctx, manager, db.GetLockClassKey(manager, syncOwnerId))
 
-	diskObj, err := db.FetchByExternalId(manager, vdisk.GetGlobalId())
+	diskObj, err := db.FetchByExternalIdAndManagerId(manager, vdisk.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		sq := StorageManager.Query().SubQuery()
+		return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("storage_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), managerId))
+	})
 	if err != nil {
 		if err == sql.ErrNoRows {
 			vstorage, err := vdisk.GetIStorage()
@@ -1231,7 +1234,9 @@ func (manager *SDiskManager) syncCloudDisk(ctx context.Context, userCred mcclien
 				return nil, errors.Wrapf(err, "unable to GetIStorage of vdisk %q", vdisk.GetName())
 			}
 
-			storageObj, err := db.FetchByExternalId(StorageManager, vstorage.GetGlobalId())
+			storageObj, err := db.FetchByExternalIdAndManagerId(StorageManager, vstorage.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", managerId)
+			})
 			if err != nil {
 				log.Errorf("cannot find storage of vdisk %s", err)
 				return nil, err
@@ -1243,7 +1248,7 @@ func (manager *SDiskManager) syncCloudDisk(ctx context.Context, userCred mcclien
 		}
 	} else {
 		disk := diskObj.(*SDisk)
-		err = disk.syncWithCloudDisk(ctx, userCred, provider, vdisk, index, syncOwnerId)
+		err = disk.syncWithCloudDisk(ctx, userCred, provider, vdisk, index, syncOwnerId, managerId)
 		if err != nil {
 			return nil, err
 		}
@@ -1288,7 +1293,7 @@ func (manager *SDiskManager) SyncDisks(ctx context.Context, userCred mcclient.To
 	}
 
 	for i := 0; i < len(commondb); i += 1 {
-		err = commondb[i].syncWithCloudDisk(ctx, userCred, provider, commonext[i], -1, syncOwnerId)
+		err = commondb[i].syncWithCloudDisk(ctx, userCred, provider, commonext[i], -1, syncOwnerId, storage.ManagerId)
 		if err != nil {
 			syncResult.UpdateError(err)
 		} else {
@@ -1301,7 +1306,10 @@ func (manager *SDiskManager) SyncDisks(ctx context.Context, userCred mcclient.To
 
 	for i := 0; i < len(added); i += 1 {
 		extId := added[i].GetGlobalId()
-		_disk, err := db.FetchByExternalId(manager, extId)
+		_disk, err := db.FetchByExternalIdAndManagerId(manager, extId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			sq := StorageManager.Query().SubQuery()
+			return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("storage_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), storage.ManagerId))
+		})
 		if err != nil && err != sql.ErrNoRows {
 			//主要是显示duplicate err及 general err,方便排错
 			msg := fmt.Errorf("failed to found disk by external Id %s error: %v", extId, err)
@@ -1310,7 +1318,7 @@ func (manager *SDiskManager) SyncDisks(ctx context.Context, userCred mcclient.To
 		}
 		if _disk != nil {
 			disk := _disk.(*SDisk)
-			err = disk.syncDiskStorage(ctx, userCred, added[i])
+			err = disk.syncDiskStorage(ctx, userCred, added[i], storage.ManagerId)
 			if err != nil {
 				syncResult.UpdateError(err)
 			} else {
@@ -1332,7 +1340,7 @@ func (manager *SDiskManager) SyncDisks(ctx context.Context, userCred mcclient.To
 	return localDisks, remoteDisks, syncResult
 }
 
-func (self *SDisk) syncDiskStorage(ctx context.Context, userCred mcclient.TokenCredential, idisk cloudprovider.ICloudDisk) error {
+func (self *SDisk) syncDiskStorage(ctx context.Context, userCred mcclient.TokenCredential, idisk cloudprovider.ICloudDisk, managerId string) error {
 	extId := idisk.GetGlobalId()
 	istorage, err := idisk.GetIStorage()
 	if err != nil {
@@ -1340,7 +1348,9 @@ func (self *SDisk) syncDiskStorage(ctx context.Context, userCred mcclient.TokenC
 		return err
 	}
 	storageExtId := istorage.GetGlobalId()
-	storage, err := db.FetchByExternalId(StorageManager, storageExtId)
+	storage, err := db.FetchByExternalIdAndManagerId(StorageManager, storageExtId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		return q.Equals("manager_id", managerId)
+	})
 	if err != nil {
 		log.Errorf("failed to found storage by istorage %s error: %v", storageExtId, err)
 		return err
@@ -1392,7 +1402,12 @@ func (self *SDisk) syncRemoveCloudDisk(ctx context.Context, userCred mcclient.To
 	iDisk, err := iregion.GetIDiskById(self.ExternalId)
 	if err == nil {
 		if storageId := iDisk.GetIStorageId(); len(storageId) > 0 {
-			storage, err := db.FetchByExternalId(StorageManager, storageId)
+			storage, err := db.FetchByExternalIdAndManagerId(StorageManager, storageId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				if s := self.GetStorage(); s != nil {
+					return q.Equals("manager_id", s.ManagerId)
+				}
+				return q
+			})
 			if err == nil {
 				_, err = db.Update(self, func() error {
 					self.StorageId = storage.GetId()
@@ -1418,7 +1433,7 @@ func (self *SDisk) syncRemoveCloudDisk(ctx context.Context, userCred mcclient.To
 	return self.RealDelete(ctx, userCred)
 }
 
-func (self *SDisk) syncWithCloudDisk(ctx context.Context, userCred mcclient.TokenCredential, provider cloudprovider.ICloudProvider, extDisk cloudprovider.ICloudDisk, index int, syncOwnerId mcclient.IIdentityProvider) error {
+func (self *SDisk) syncWithCloudDisk(ctx context.Context, userCred mcclient.TokenCredential, provider cloudprovider.ICloudProvider, extDisk cloudprovider.ICloudDisk, index int, syncOwnerId mcclient.IIdentityProvider, managerId string) error {
 	recycle := false
 	guests := self.GetGuests()
 	if provider.GetFactory().IsSupportPrepaidResources() && len(guests) == 1 && guests[0].IsPrepaidRecycle() {
diff --git a/pkg/compute/models/elasticcache_instances.go b/pkg/compute/models/elasticcache_instances.go
index 57410e0a84..19c3d40edf 100644
--- a/pkg/compute/models/elasticcache_instances.go
+++ b/pkg/compute/models/elasticcache_instances.go
@@ -582,7 +582,9 @@ func (manager *SElasticcacheManager) newFromCloudElasticcache(ctx context.Contex
 	}
 
 	if vpcId := extInstance.GetVpcId(); len(vpcId) > 0 {
-		vpc, err := db.FetchByExternalId(VpcManager, vpcId)
+		vpc, err := db.FetchByExternalIdAndManagerId(VpcManager, vpcId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			return q.Equals("manager_id", provider.Id)
+		})
 		if err != nil {
 			return nil, errors.Wrapf(err, "newFromCloudElasticcache.FetchVpcId")
 		}
@@ -590,7 +592,13 @@ func (manager *SElasticcacheManager) newFromCloudElasticcache(ctx context.Contex
 	}
 
 	if networkId := extInstance.GetNetworkId(); len(networkId) > 0 {
-		network, err := db.FetchByExternalId(NetworkManager, networkId)
+		network, err := db.FetchByExternalIdAndManagerId(NetworkManager, networkId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			wire := WireManager.Query().SubQuery()
+			vpc := VpcManager.Query().SubQuery()
+			return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
+				Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
+				Filter(sqlchemy.Equals(vpc.Field("manager_id"), provider.Id))
+		})
 		if err != nil {
 			return nil, errors.Wrapf(err, "newFromCloudElasticcache.FetchNetworkId")
 		}
diff --git a/pkg/compute/models/elasticips.go b/pkg/compute/models/elasticips.go
index d72abe9e65..e3c8cf8032 100644
--- a/pkg/compute/models/elasticips.go
+++ b/pkg/compute/models/elasticips.go
@@ -414,7 +414,16 @@ func (self *SElasticip) SyncInstanceWithCloudEip(ctx context.Context, userCred m
 			return errors.Error("unsupported association type")
 		}
 
-		extRes, err := db.FetchByExternalId(manager, vmExtId)
+		extRes, err := db.FetchByExternalIdAndManagerId(manager, vmExtId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			switch ext.GetAssociationType() {
+			case api.EIP_ASSOCIATE_TYPE_SERVER:
+				sq := HostManager.Query().SubQuery()
+				return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("host_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), self.ManagerId))
+			case api.EIP_ASSOCIATE_TYPE_NAT_GATEWAY, api.EIP_ASSOCIATE_TYPE_LOADBALANCER:
+				return q.Equals("manager_id", self.ManagerId)
+			}
+			return q
+		})
 		if err != nil {
 			log.Errorf("fail to find vm by external ID %s", vmExtId)
 			return err
@@ -501,7 +510,13 @@ func (manager *SElasticipManager) newFromCloudEip(ctx context.Context, userCred
 	eip.CloudregionId = region.Id
 	eip.ChargeType = extEip.GetInternetChargeType()
 	if networkId := extEip.GetINetworkId(); len(networkId) > 0 {
-		network, err := db.FetchByExternalId(NetworkManager, networkId)
+		network, err := db.FetchByExternalIdAndManagerId(NetworkManager, networkId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			wire := WireManager.Query().SubQuery()
+			vpc := VpcManager.Query().SubQuery()
+			return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
+				Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
+				Filter(sqlchemy.Equals(vpc.Field("manager_id"), provider.Id))
+		})
 		if err != nil {
 			msg := fmt.Sprintf("failed to found network by externalId %s error: %v", networkId, err)
 			log.Errorf(msg)
@@ -759,7 +774,9 @@ func (self *SElasticip) AssociateNatGateway(ctx context.Context, userCred mcclie
 }
 
 func (manager *SElasticipManager) getEipByExtEip(ctx context.Context, userCred mcclient.TokenCredential, extEip cloudprovider.ICloudEIP, provider *SCloudprovider, region *SCloudregion, syncOwnerId mcclient.IIdentityProvider) (*SElasticip, error) {
-	eipObj, err := db.FetchByExternalId(manager, extEip.GetGlobalId())
+	eipObj, err := db.FetchByExternalIdAndManagerId(manager, extEip.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		return q.Equals("manager_id", provider.Id)
+	})
 	if err == nil {
 		return eipObj.(*SElasticip), nil
 	}
diff --git a/pkg/compute/models/guests.go b/pkg/compute/models/guests.go
index 979c7f7710..ad7770e8ae 100644
--- a/pkg/compute/models/guests.go
+++ b/pkg/compute/models/guests.go
@@ -2292,7 +2292,13 @@ func (self *SGuest) syncRemoveCloudVM(ctx context.Context, userCred mcclient.Tok
 	iVM, err := iregion.GetIVMById(self.ExternalId)
 	if err == nil { //漂移归位
 		if hostId := iVM.GetIHostId(); len(hostId) > 0 {
-			host, err := db.FetchByExternalId(HostManager, hostId)
+			host, err := db.FetchByExternalIdAndManagerId(HostManager, hostId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				host := self.GetHost()
+				if host != nil {
+					return q.Equals("manager_id", host.ManagerId)
+				}
+				return q
+			})
 			if err == nil {
 				_, err = db.Update(self, func() error {
 					self.HostId = host.GetId()
@@ -2723,7 +2729,13 @@ func getCloudNicNetwork(vnic cloudprovider.ICloudNic, host *SHost, ipList []stri
 		// find network by IP
 		return host.getNetworkOfIPOnHost(ip)
 	}
-	localNetObj, err := db.FetchByExternalId(NetworkManager, vnet.GetGlobalId())
+	localNetObj, err := db.FetchByExternalIdAndManagerId(NetworkManager, vnet.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		vpc := VpcManager.Query().SubQuery()
+		wire := WireManager.Query().SubQuery()
+		return q.Join(wire, sqlchemy.Equals(q.Field("wire_id"), wire.Field("id"))).
+			Join(vpc, sqlchemy.Equals(wire.Field("vpc_id"), vpc.Field("id"))).
+			Filter(sqlchemy.Equals(vpc.Field("manager_id"), host.ManagerId))
+	})
 	if err != nil {
 		return nil, fmt.Errorf("Cannot find network of external_id %s: %v", vnet.GetGlobalId(), err)
 	}
@@ -2923,7 +2935,7 @@ func (self *SGuest) SyncVMDisks(ctx context.Context, userCred mcclient.TokenCred
 		if len(vdisks[i].GetGlobalId()) == 0 {
 			continue
 		}
-		disk, err := DiskManager.syncCloudDisk(ctx, userCred, provider, vdisks[i], i, syncOwnerId)
+		disk, err := DiskManager.syncCloudDisk(ctx, userCred, provider, vdisks[i], i, syncOwnerId, host.ManagerId)
 		if err != nil {
 			log.Errorf("syncCloudDisk error: %v", err)
 			result.Error(err)
diff --git a/pkg/compute/models/host_recycle.go b/pkg/compute/models/host_recycle.go
index 92c8a1355e..7d86dd2d99 100644
--- a/pkg/compute/models/host_recycle.go
+++ b/pkg/compute/models/host_recycle.go
@@ -686,7 +686,7 @@ func (host *SHost) RebuildRecycledGuest(ctx context.Context, userCred mcclient.T
 			log.Errorf("disk.SetExternalId fail %s", err)
 			return err
 		}
-		err = disk.syncWithCloudDisk(ctx, userCred, iprovider, idisks[i], i, guest.GetOwnerId())
+		err = disk.syncWithCloudDisk(ctx, userCred, iprovider, idisks[i], i, guest.GetOwnerId(), host.ManagerId)
 		if err != nil {
 			log.Errorf("disk.syncWithCloudDisk fail %s", err)
 			return err
diff --git a/pkg/compute/models/hosts.go b/pkg/compute/models/hosts.go
index b12ebe39ea..6b8b1016ad 100644
--- a/pkg/compute/models/hosts.go
+++ b/pkg/compute/models/hosts.go
@@ -1893,7 +1893,9 @@ func (self *SHost) Attach2Storage(ctx context.Context, userCred mcclient.TokenCr
 }
 
 func (self *SHost) newCloudHostStorage(ctx context.Context, userCred mcclient.TokenCredential, extStorage cloudprovider.ICloudStorage, provider *SCloudprovider) (*SStorage, error) {
-	storageObj, err := db.FetchByExternalId(StorageManager, extStorage.GetGlobalId())
+	storageObj, err := db.FetchByExternalIdAndManagerId(StorageManager, extStorage.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		return q.Equals("manager_id", provider.Id)
+	})
 	if err != nil {
 		if err == sql.ErrNoRows {
 			// no cloud storage found, this may happen for on-premise host
@@ -2008,7 +2010,10 @@ func (self *SHost) Attach2Wire(ctx context.Context, userCred mcclient.TokenCrede
 }
 
 func (self *SHost) newCloudHostWire(ctx context.Context, userCred mcclient.TokenCredential, extWire cloudprovider.ICloudWire) error {
-	wireObj, err := db.FetchByExternalId(WireManager, extWire.GetGlobalId())
+	wireObj, err := db.FetchByExternalIdAndManagerId(WireManager, extWire.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		sq := VpcManager.Query().SubQuery()
+		return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("vpc_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), self.ManagerId))
+	})
 	if err != nil {
 		log.Errorf("%s", err)
 		return nil
@@ -2076,7 +2081,10 @@ func (self *SHost) SyncHostVMs(ctx context.Context, userCred mcclient.TokenCrede
 	}
 
 	for i := 0; i < len(added); i += 1 {
-		vm, err := db.FetchByExternalId(GuestManager, added[i].GetGlobalId())
+		vm, err := db.FetchByExternalIdAndManagerId(GuestManager, added[i].GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			sq := HostManager.Query().SubQuery()
+			return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("host_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), self.ManagerId))
+		})
 		if err != nil && err != sql.ErrNoRows {
 			log.Errorf("failed to found guest by externalId %s error: %v", added[i].GetGlobalId(), err)
 			continue
@@ -2088,7 +2096,9 @@ func (self *SHost) SyncHostVMs(ctx context.Context, userCred mcclient.TokenCrede
 				log.Errorf("failed to found ihost from vm %s", added[i].GetGlobalId())
 				continue
 			}
-			_host, err := db.FetchByExternalId(HostManager, ihost.GetGlobalId())
+			_host, err := db.FetchByExternalIdAndManagerId(HostManager, ihost.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", self.ManagerId)
+			})
 			if err != nil {
 				log.Errorf("failed to found host by externalId %s", ihost.GetGlobalId())
 				continue
diff --git a/pkg/compute/models/loadbalancerawscachedlbb.go b/pkg/compute/models/loadbalancerawscachedlbb.go
index 702e29f96e..642ad4f190 100644
--- a/pkg/compute/models/loadbalancerawscachedlbb.go
+++ b/pkg/compute/models/loadbalancerawscachedlbb.go
@@ -20,6 +20,7 @@ import (
 
 	"yunion.io/x/pkg/errors"
 	"yunion.io/x/pkg/util/compare"
+	"yunion.io/x/sqlchemy"
 
 	api "yunion.io/x/onecloud/pkg/apis/compute"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
@@ -194,7 +195,10 @@ func (lbb *SAwsCachedLb) syncRemoveCloudLoadbalancerBackend(ctx context.Context,
 func (lbb *SAwsCachedLb) constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend cloudprovider.ICloudLoadbalancerBackend) error {
 	lbb.Status = extLoadbalancerBackend.GetStatus()
 
-	instance, err := db.FetchByExternalId(GuestManager, extLoadbalancerBackend.GetBackendId())
+	instance, err := db.FetchByExternalIdAndManagerId(GuestManager, extLoadbalancerBackend.GetBackendId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		sq := HostManager.Query().SubQuery()
+		return q.Join(sq, sqlchemy.Equals(q.Field("host_id"), sq.Field("id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), lbb.ManagerId))
+	})
 	if err != nil {
 		return err
 	}
diff --git a/pkg/compute/models/loadbalancerawscachedlbbg.go b/pkg/compute/models/loadbalancerawscachedlbbg.go
index 653379bd28..a40a2b8a66 100644
--- a/pkg/compute/models/loadbalancerawscachedlbbg.go
+++ b/pkg/compute/models/loadbalancerawscachedlbbg.go
@@ -232,7 +232,9 @@ func (man *SAwsCachedLbbgManager) SyncLoadbalancerBackendgroups(ctx context.Cont
 		var elb *SLoadbalancer
 		elbId := commonext[i].GetLoadbalancerId()
 		if len(elbId) > 0 {
-			ielb, err := db.FetchByExternalId(LoadbalancerManager, elbId)
+			ielb, err := db.FetchByExternalIdAndManagerId(LoadbalancerManager, elbId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", provider.Id)
+			})
 			if err == nil {
 				elb = ielb.(*SLoadbalancer)
 			}
diff --git a/pkg/compute/models/loadbalancerbackends.go b/pkg/compute/models/loadbalancerbackends.go
index 29c5387b32..ebb86ebe9e 100644
--- a/pkg/compute/models/loadbalancerbackends.go
+++ b/pkg/compute/models/loadbalancerbackends.go
@@ -522,7 +522,7 @@ func (man *SLoadbalancerBackendManager) SyncLoadbalancerBackends(ctx context.Con
 	return syncResult
 }
 
-func (lbb *SLoadbalancerBackend) constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend cloudprovider.ICloudLoadbalancerBackend) error {
+func (lbb *SLoadbalancerBackend) constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend cloudprovider.ICloudLoadbalancerBackend, managerId string) error {
 	// lbb.Name = extLoadbalancerBackend.GetName()
 	lbb.Status = extLoadbalancerBackend.GetStatus()
 
@@ -532,7 +532,10 @@ func (lbb *SLoadbalancerBackend) constructFieldsFromCloudLoadbalancerBackend(ext
 	lbb.BackendType = extLoadbalancerBackend.GetBackendType()
 	lbb.BackendRole = extLoadbalancerBackend.GetBackendRole()
 
-	instance, err := db.FetchByExternalId(GuestManager, extLoadbalancerBackend.GetBackendId())
+	instance, err := db.FetchByExternalIdAndManagerId(GuestManager, extLoadbalancerBackend.GetBackendId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		sq := HostManager.Query().SubQuery()
+		return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("host_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), managerId))
+	})
 	if err != nil {
 		return err
 	}
@@ -563,7 +566,7 @@ func (lbb *SLoadbalancerBackend) syncRemoveCloudLoadbalancerBackend(ctx context.
 
 func (lbb *SLoadbalancerBackend) SyncWithCloudLoadbalancerBackend(ctx context.Context, userCred mcclient.TokenCredential, extLoadbalancerBackend cloudprovider.ICloudLoadbalancerBackend, syncOwnerId mcclient.IIdentityProvider, provider *SCloudprovider) error {
 	diff, err := db.UpdateWithLock(ctx, lbb, func() error {
-		return lbb.constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend)
+		return lbb.constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend, provider.Id)
 	})
 	if err != nil {
 		return err
@@ -613,7 +616,7 @@ func (man *SLoadbalancerBackendManager) newFromCloudLoadbalancerBackend(ctx cont
 	}
 	lbb.Name = newName
 
-	if err := lbb.constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend); err != nil {
+	if err := lbb.constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend, provider.Id); err != nil {
 		return nil, err
 	}
 
diff --git a/pkg/compute/models/loadbalancercachedacls.go b/pkg/compute/models/loadbalancercachedacls.go
index cc757a31f7..b31d61f15f 100644
--- a/pkg/compute/models/loadbalancercachedacls.go
+++ b/pkg/compute/models/loadbalancercachedacls.go
@@ -324,7 +324,10 @@ func (acl *SCachedLoadbalancerAcl) SyncWithCloudLoadbalancerAcl(ctx context.Cont
 		} else {
 			ext_listener_id := extAcl.GetAclListenerID()
 			if len(ext_listener_id) > 0 {
-				ilistener, err := db.FetchByExternalId(LoadbalancerListenerManager, ext_listener_id)
+				ilistener, err := db.FetchByExternalIdAndManagerId(LoadbalancerListenerManager, ext_listener_id, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+					sq := LoadbalancerManager.Query().SubQuery()
+					return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("loadbalancer_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), acl.ManagerId))
+				})
 				if err != nil {
 					return errors.Wrap(err, "cacheLoadbalancerAcl.sync.FetchByExternalId")
 				}
diff --git a/pkg/compute/models/loadbalancerhuaweicachedlbb.go b/pkg/compute/models/loadbalancerhuaweicachedlbb.go
index 711d78a85e..ba2ae3d219 100644
--- a/pkg/compute/models/loadbalancerhuaweicachedlbb.go
+++ b/pkg/compute/models/loadbalancerhuaweicachedlbb.go
@@ -22,6 +22,7 @@ import (
 	"yunion.io/x/log"
 	"yunion.io/x/pkg/errors"
 	"yunion.io/x/pkg/util/compare"
+	"yunion.io/x/sqlchemy"
 
 	api "yunion.io/x/onecloud/pkg/apis/compute"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
@@ -197,7 +198,10 @@ func (lbb *SHuaweiCachedLb) syncRemoveCloudLoadbalancerBackend(ctx context.Conte
 func (lbb *SHuaweiCachedLb) constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend cloudprovider.ICloudLoadbalancerBackend) error {
 	lbb.Status = extLoadbalancerBackend.GetStatus()
 
-	instance, err := db.FetchByExternalId(GuestManager, extLoadbalancerBackend.GetBackendId())
+	instance, err := db.FetchByExternalIdAndManagerId(GuestManager, extLoadbalancerBackend.GetBackendId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		sq := HostManager.Query().SubQuery()
+		return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("host_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), lbb.ManagerId))
+	})
 	if err != nil {
 		return err
 	}
@@ -286,17 +290,6 @@ func (man *SHuaweiCachedLbManager) newFromCloudLoadbalancerBackend(ctx context.C
 }
 
 func newLocalBackendFromCloudLoadbalancerBackend(ctx context.Context, userCred mcclient.TokenCredential, loadbalancerBackendgroup *SLoadbalancerBackendGroup, extLoadbalancerBackend cloudprovider.ICloudLoadbalancerBackend, syncOwnerId mcclient.IIdentityProvider) (*SLoadbalancerBackend, error) {
-	instance, err := db.FetchByExternalId(GuestManager, extLoadbalancerBackend.GetBackendId())
-	if err != nil {
-		return nil, err
-	}
-
-	guest := instance.(*SGuest)
-	//address, err := LoadbalancerBackendManager.GetGuestAddress(guest)
-	//if err != nil {
-	//	return nil, err
-	//}
-
 	lbbgRegion := loadbalancerBackendgroup.GetRegion()
 	if lbbgRegion == nil {
 		return nil, errors.Wrap(httperrors.ErrInvalidStatus, "loadbalancerBackendgroup is not attached to any region")
@@ -306,6 +299,17 @@ func newLocalBackendFromCloudLoadbalancerBackend(ctx context.Context, userCred m
 		return nil, errors.Wrap(httperrors.ErrInvalidStatus, "loadbalancerBackendgroup is not attached to any cloudprovider")
 	}
 
+	instance, err := db.FetchByExternalIdAndManagerId(GuestManager, extLoadbalancerBackend.GetBackendId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		sq := HostManager.Query().SubQuery()
+		return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("host_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), lbbgProvider.Id))
+	})
+
+	guest := instance.(*SGuest)
+	//address, err := LoadbalancerBackendManager.GetGuestAddress(guest)
+	//if err != nil {
+	//	return nil, err
+	//}
+
 	man := LoadbalancerBackendManager
 	q := man.Query().IsFalse("pending_deleted")
 	q = q.Equals("weight", extLoadbalancerBackend.GetWeight()).Equals("port", extLoadbalancerBackend.GetPort())
@@ -350,7 +354,7 @@ func newLocalBackendFromCloudLoadbalancerBackend(ctx context.Context, userCred m
 		}
 		lbb.Name = newName
 
-		if err := lbb.constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend); err != nil {
+		if err := lbb.constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend, lbbgProvider.Id); err != nil {
 			return nil, err
 		}
 
diff --git a/pkg/compute/models/loadbalancerlisteners.go b/pkg/compute/models/loadbalancerlisteners.go
index 2f3c42466e..a9bd36be34 100644
--- a/pkg/compute/models/loadbalancerlisteners.go
+++ b/pkg/compute/models/loadbalancerlisteners.go
@@ -955,7 +955,9 @@ func (lblis *SLoadbalancerListener) constructFieldsFromCloudListener(userCred mc
 
 	lblis.AclType = extListener.GetAclType()
 	if aclID := extListener.GetAclId(); len(aclID) > 0 {
-		if _acl, err := db.FetchByExternalId(CachedLoadbalancerAclManager, aclID); err == nil {
+		if _acl, err := db.FetchByExternalIdAndManagerId(CachedLoadbalancerAclManager, aclID, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			return q.Equals("manager_id", lb.ManagerId)
+		}); err == nil {
 			acl := _acl.(*SCachedLoadbalancerAcl)
 			lblis.CachedAclId = acl.GetId()
 			lblis.AclId = acl.AclId
@@ -991,7 +993,9 @@ func (lblis *SLoadbalancerListener) constructFieldsFromCloudListener(userCred mc
 		lblis.TLSCipherPolicy = extListener.GetTLSCipherPolicy()
 		lblis.EnableHttp2 = extListener.HTTP2Enabled()
 		if certificateId := extListener.GetCertificateId(); len(certificateId) > 0 {
-			if _cert, err := db.FetchByExternalId(CachedLoadbalancerCertificateManager, certificateId); err == nil {
+			if _cert, err := db.FetchByExternalIdAndManagerId(CachedLoadbalancerCertificateManager, certificateId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", lb.ManagerId)
+			}); err == nil {
 				cert := _cert.(*SCachedLoadbalancerCertificate)
 				lblis.CachedCertificateId = cert.GetId()
 				lblis.CertificateId = cert.CertificateId
@@ -1025,7 +1029,9 @@ func (lblis *SLoadbalancerListener) constructFieldsFromCloudListener(userCred mc
 	switch lblis.GetProviderName() {
 	case api.CLOUD_PROVIDER_HUAWEI:
 		if len(groupId) > 0 {
-			group, err := db.FetchByExternalId(HuaweiCachedLbbgManager, groupId)
+			group, err := db.FetchByExternalIdAndManagerId(HuaweiCachedLbbgManager, groupId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", lb.ManagerId)
+			})
 			if err != nil {
 				if err == sql.ErrNoRows {
 					lblis.BackendGroupId = ""
@@ -1037,7 +1043,9 @@ func (lblis *SLoadbalancerListener) constructFieldsFromCloudListener(userCred mc
 		}
 	case api.CLOUD_PROVIDER_AWS:
 		if len(groupId) > 0 {
-			group, err := db.FetchByExternalId(AwsCachedLbbgManager, groupId)
+			group, err := db.FetchByExternalIdAndManagerId(AwsCachedLbbgManager, groupId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", lb.ManagerId)
+			})
 			if err != nil {
 				log.Errorf("Fetch aws loadbalancer backendgroup by external id %s failed: %s", groupId, err)
 			} else {
@@ -1060,7 +1068,9 @@ func (lblis *SLoadbalancerListener) constructFieldsFromCloudListener(userCred mc
 			lb := lblis.GetLoadbalancer()
 			if forward, _ := lb.LBInfo.Int("Forward"); forward == 1 {
 				// 应用型负载均衡
-				group, err := db.FetchByExternalId(QcloudCachedLbbgManager, groupId)
+				group, err := db.FetchByExternalIdAndManagerId(QcloudCachedLbbgManager, groupId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+					return q.Equals("manager_id", lb.ManagerId)
+				})
 				if err != nil {
 					log.Errorf("Fetch qcloud loadbalancer backendgroup by external id %s failed: %s", groupId, err)
 				} else {
@@ -1068,7 +1078,10 @@ func (lblis *SLoadbalancerListener) constructFieldsFromCloudListener(userCred mc
 				}
 			} else {
 				// 传统型负载均衡
-				if group, err := db.FetchByExternalId(LoadbalancerBackendGroupManager, groupId); err == nil {
+				if group, err := db.FetchByExternalIdAndManagerId(LoadbalancerBackendGroupManager, groupId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+					sq := LoadbalancerManager.Query().SubQuery()
+					return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("loadbalancer_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), lb.ManagerId))
+				}); err == nil {
 					lblis.BackendGroupId = group.GetId()
 				}
 			}
@@ -1076,13 +1089,16 @@ func (lblis *SLoadbalancerListener) constructFieldsFromCloudListener(userCred mc
 	default:
 		if len(lblis.BackendGroupId) == 0 && len(groupId) == 0 {
 			lblis.BackendGroupId = lb.BackendGroupId
-		} else if group, err := db.FetchByExternalId(LoadbalancerBackendGroupManager, groupId); err == nil {
+		} else if group, err := db.FetchByExternalIdAndManagerId(LoadbalancerBackendGroupManager, groupId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			sq := LoadbalancerManager.Query().SubQuery()
+			return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("loadbalancer_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), lb.ManagerId))
+		}); err == nil {
 			lblis.BackendGroupId = group.GetId()
 		}
 	}
 }
 
-func (lblis *SLoadbalancerListener) updateCachedLoadbalancerBackendGroupAssociate(ctx context.Context, extListener cloudprovider.ICloudLoadbalancerListener) error {
+func (lblis *SLoadbalancerListener) updateCachedLoadbalancerBackendGroupAssociate(ctx context.Context, extListener cloudprovider.ICloudLoadbalancerListener, managerId string) error {
 	exteralLbbgId := extListener.GetBackendGroupId()
 	if len(exteralLbbgId) == 0 {
 		return nil
@@ -1090,7 +1106,9 @@ func (lblis *SLoadbalancerListener) updateCachedLoadbalancerBackendGroupAssociat
 
 	switch lblis.GetProviderName() {
 	case api.CLOUD_PROVIDER_HUAWEI:
-		_group, err := db.FetchByExternalId(HuaweiCachedLbbgManager, exteralLbbgId)
+		_group, err := db.FetchByExternalIdAndManagerId(HuaweiCachedLbbgManager, exteralLbbgId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			return q.Equals("manager_id", managerId)
+		})
 		if err != nil {
 			if err == sql.ErrNoRows {
 				lblis.BackendGroupId = ""
@@ -1115,7 +1133,9 @@ func (lblis *SLoadbalancerListener) updateCachedLoadbalancerBackendGroupAssociat
 	case api.CLOUD_PROVIDER_QCLOUD:
 		lb := lblis.GetLoadbalancer()
 		if forward, _ := lb.LBInfo.Int("Forward"); forward == 1 {
-			_group, err := db.FetchByExternalId(QcloudCachedLbbgManager, exteralLbbgId)
+			_group, err := db.FetchByExternalIdAndManagerId(QcloudCachedLbbgManager, exteralLbbgId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", managerId)
+			})
 			if err != nil {
 				if err == sql.ErrNoRows {
 					lblis.BackendGroupId = ""
@@ -1167,7 +1187,7 @@ func (lblis *SLoadbalancerListener) SyncWithCloudLoadbalancerListener(ctx contex
 		return err
 	}
 
-	err = lblis.updateCachedLoadbalancerBackendGroupAssociate(ctx, extListener)
+	err = lblis.updateCachedLoadbalancerBackendGroupAssociate(ctx, extListener, lb.ManagerId)
 	if err != nil {
 		return errors.Wrap(err, "LoadbalancerListener.SyncWithCloudLoadbalancerListener")
 	}
@@ -1199,7 +1219,7 @@ func (man *SLoadbalancerListenerManager) newFromCloudLoadbalancerListener(ctx co
 		return nil, err
 	}
 
-	err = lblis.updateCachedLoadbalancerBackendGroupAssociate(ctx, extListener)
+	err = lblis.updateCachedLoadbalancerBackendGroupAssociate(ctx, extListener, lb.ManagerId)
 	if err != nil {
 		return nil, errors.Wrap(err, "LoadbalancerListener.newFromCloudLoadbalancerListener")
 	}
diff --git a/pkg/compute/models/loadbalancerqcloudcachedlbb.go b/pkg/compute/models/loadbalancerqcloudcachedlbb.go
index 2efbea1f7c..d4e2d7674e 100644
--- a/pkg/compute/models/loadbalancerqcloudcachedlbb.go
+++ b/pkg/compute/models/loadbalancerqcloudcachedlbb.go
@@ -21,6 +21,7 @@ import (
 	"yunion.io/x/jsonutils"
 	"yunion.io/x/pkg/errors"
 	"yunion.io/x/pkg/util/compare"
+	"yunion.io/x/sqlchemy"
 
 	api "yunion.io/x/onecloud/pkg/apis/compute"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
@@ -94,7 +95,10 @@ func (lbb *SQcloudCachedLb) syncRemoveCloudLoadbalancerBackend(ctx context.Conte
 func (lbb *SQcloudCachedLb) constructFieldsFromCloudLoadbalancerBackend(extLoadbalancerBackend cloudprovider.ICloudLoadbalancerBackend) error {
 	lbb.Status = extLoadbalancerBackend.GetStatus()
 
-	instance, err := db.FetchByExternalId(GuestManager, extLoadbalancerBackend.GetBackendId())
+	instance, err := db.FetchByExternalIdAndManagerId(GuestManager, extLoadbalancerBackend.GetBackendId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		sq := HostManager.Query().SubQuery()
+		return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("host_id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), lbb.ManagerId))
+	})
 	if err != nil {
 		return err
 	}
diff --git a/pkg/compute/models/loadbalancers.go b/pkg/compute/models/loadbalancers.go
index e9dfc5e0b7..62d9fe1bf8 100644
--- a/pkg/compute/models/loadbalancers.go
+++ b/pkg/compute/models/loadbalancers.go
@@ -750,11 +750,18 @@ func (man *SLoadbalancerManager) SyncLoadbalancers(ctx context.Context, userCred
 	return localLbs, remoteLbs, syncResult
 }
 
-func getExtLbNetworkIds(extLb cloudprovider.ICloudLoadbalancer) []string {
+func getExtLbNetworkIds(extLb cloudprovider.ICloudLoadbalancer, managerId string) []string {
 	extNetworkIds := extLb.GetNetworkIds()
 	lbNetworkIds := []string{}
 	for _, networkId := range extNetworkIds {
-		if network, err := db.FetchByExternalId(NetworkManager, networkId); err == nil && network != nil {
+		network, err := db.FetchByExternalIdAndManagerId(NetworkManager, networkId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			wire := WireManager.Query().SubQuery()
+			vpc := VpcManager.Query().SubQuery()
+			return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
+				Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
+				Filter(sqlchemy.Equals(vpc.Field("manager_id"), managerId))
+		})
+		if err == nil && network != nil {
 			lbNetworkIds = append(lbNetworkIds, network.GetId())
 		}
 	}
@@ -782,11 +789,13 @@ func (man *SLoadbalancerManager) newFromCloudLoadbalancer(ctx context.Context, u
 	lb.ChargeType = extLb.GetChargeType()
 	lb.EgressMbps = extLb.GetEgressMbps()
 	lb.ExternalId = extLb.GetGlobalId()
-	lbNetworkIds := getExtLbNetworkIds(extLb)
+	lbNetworkIds := getExtLbNetworkIds(extLb, lb.ManagerId)
 	lb.NetworkId = strings.Join(lbNetworkIds, ",")
 
 	if vpcId := extLb.GetVpcId(); len(vpcId) > 0 {
-		if vpc, err := db.FetchByExternalId(VpcManager, vpcId); err == nil && vpc != nil {
+		if vpc, err := db.FetchByExternalIdAndManagerId(VpcManager, vpcId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			return q.Equals("manager_id", provider.Id)
+		}); err == nil && vpc != nil {
 			lb.VpcId = vpc.GetId()
 		}
 	}
@@ -958,14 +967,16 @@ func (lb *SLoadbalancer) SyncWithCloudLoadbalancer(ctx context.Context, userCred
 		lb.EgressMbps = extLb.GetEgressMbps()
 		lb.ChargeType = extLb.GetChargeType()
 		lb.ManagerId = provider.Id
-		lbNetworkIds := getExtLbNetworkIds(extLb)
+		lbNetworkIds := getExtLbNetworkIds(extLb, lb.ManagerId)
 		lb.NetworkId = strings.Join(lbNetworkIds, ",")
 		if extLb.GetMetadata() != nil {
 			lb.LBInfo = extLb.GetMetadata()
 		}
 
 		if vpcId := extLb.GetVpcId(); len(vpcId) > 0 {
-			if vpc, err := db.FetchByExternalId(VpcManager, vpcId); err == nil && vpc != nil {
+			if vpc, err := db.FetchByExternalIdAndManagerId(VpcManager, vpcId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				return q.Equals("manager_id", provider.Id)
+			}); err == nil && vpc != nil {
 				lb.VpcId = vpc.GetId()
 			}
 		}
@@ -975,7 +986,7 @@ func (lb *SLoadbalancer) SyncWithCloudLoadbalancer(ctx context.Context, userCred
 
 	db.OpsLog.LogSyncUpdate(lb, diff, userCred)
 
-	networkIds := getExtLbNetworkIds(extLb)
+	networkIds := getExtLbNetworkIds(extLb, lb.ManagerId)
 	SyncCloudProject(userCred, lb, syncOwnerId, extLb, provider.Id)
 	lb.syncLoadbalancerNetwork(ctx, userCred, networkIds)
 
diff --git a/pkg/compute/models/natstable.go b/pkg/compute/models/natstable.go
index 0ad34d9825..b9327196c1 100644
--- a/pkg/compute/models/natstable.go
+++ b/pkg/compute/models/natstable.go
@@ -261,7 +261,7 @@ func (manager *SNatSEntryManager) SyncNatSTable(ctx context.Context, userCred mc
 	}
 
 	for i := 0; i < len(commondb); i += 1 {
-		err := commondb[i].SyncWithCloudNatSTable(ctx, userCred, commonext[i], syncOwnerId)
+		err := commondb[i].SyncWithCloudNatSTable(ctx, userCred, commonext[i], syncOwnerId, provider.Id)
 		if err != nil {
 			result.UpdateError(err)
 			continue
@@ -271,7 +271,7 @@ func (manager *SNatSEntryManager) SyncNatSTable(ctx context.Context, userCred mc
 	}
 
 	for i := 0; i < len(added); i += 1 {
-		routeTableNew, err := manager.newFromCloudNatSTable(ctx, userCred, syncOwnerId, nat, added[i])
+		routeTableNew, err := manager.newFromCloudNatSTable(ctx, userCred, syncOwnerId, nat, added[i], provider.Id)
 		if err != nil {
 			result.AddError(err)
 			continue
@@ -293,13 +293,19 @@ func (self *SNatSEntry) syncRemoveCloudNatSTable(ctx context.Context, userCred m
 	return self.RealDelete(ctx, userCred)
 }
 
-func (self *SNatSEntry) SyncWithCloudNatSTable(ctx context.Context, userCred mcclient.TokenCredential, extEntry cloudprovider.ICloudNatSEntry, syncOwnerId mcclient.IIdentityProvider) error {
+func (self *SNatSEntry) SyncWithCloudNatSTable(ctx context.Context, userCred mcclient.TokenCredential, extEntry cloudprovider.ICloudNatSEntry, syncOwnerId mcclient.IIdentityProvider, managerId string) error {
 	diff, err := db.UpdateWithLock(ctx, self, func() error {
 		self.Status = extEntry.GetStatus()
 		self.IP = extEntry.GetIP()
 		self.SourceCIDR = extEntry.GetSourceCIDR()
 		if extNetworkId := extEntry.GetNetworkId(); len(extNetworkId) > 0 {
-			network, err := db.FetchByExternalId(NetworkManager, extNetworkId)
+			network, err := db.FetchByExternalIdAndManagerId(NetworkManager, extNetworkId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+				wire := WireManager.Query().SubQuery()
+				vpc := VpcManager.Query().SubQuery()
+				return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
+					Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
+					Filter(sqlchemy.Equals(vpc.Field("manager_id"), managerId))
+			})
 			if err != nil {
 				return err
 			}
@@ -317,7 +323,7 @@ func (self *SNatSEntry) SyncWithCloudNatSTable(ctx context.Context, userCred mcc
 	return nil
 }
 
-func (manager *SNatSEntryManager) newFromCloudNatSTable(ctx context.Context, userCred mcclient.TokenCredential, ownerId mcclient.IIdentityProvider, nat *SNatGateway, extEntry cloudprovider.ICloudNatSEntry) (*SNatSEntry, error) {
+func (manager *SNatSEntryManager) newFromCloudNatSTable(ctx context.Context, userCred mcclient.TokenCredential, ownerId mcclient.IIdentityProvider, nat *SNatGateway, extEntry cloudprovider.ICloudNatSEntry, managerId string) (*SNatSEntry, error) {
 	table := SNatSEntry{}
 	table.SetModelManager(manager, &table)
 
@@ -330,7 +336,13 @@ func (manager *SNatSEntryManager) newFromCloudNatSTable(ctx context.Context, use
 	table.IP = extEntry.GetIP()
 	table.SourceCIDR = extEntry.GetSourceCIDR()
 	if extNetworkId := extEntry.GetNetworkId(); len(extNetworkId) > 0 {
-		network, err := db.FetchByExternalId(NetworkManager, extNetworkId)
+		network, err := db.FetchByExternalIdAndManagerId(NetworkManager, extNetworkId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			wire := WireManager.Query().SubQuery()
+			vpc := VpcManager.Query().SubQuery()
+			return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
+				Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
+				Filter(sqlchemy.Equals(vpc.Field("manager_id"), managerId))
+		})
 		if err != nil {
 			return nil, err
 		}
diff --git a/pkg/compute/models/networkinterfacenetwork.go b/pkg/compute/models/networkinterfacenetwork.go
index 65b96a0e4b..760d51a10b 100644
--- a/pkg/compute/models/networkinterfacenetwork.go
+++ b/pkg/compute/models/networkinterfacenetwork.go
@@ -22,6 +22,7 @@ import (
 	"yunion.io/x/pkg/errors"
 	"yunion.io/x/pkg/util/compare"
 	"yunion.io/x/pkg/util/netutils"
+	"yunion.io/x/sqlchemy"
 
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/lockman"
@@ -182,7 +183,13 @@ func (manager *SNetworkinterfacenetworkManager) newFromCloudInterfaceAddress(ctx
 	address.SetModelManager(manager, &address)
 
 	networkId := ext.GetINetworkId()
-	_network, err := db.FetchByExternalId(NetworkManager, networkId)
+	_network, err := db.FetchByExternalIdAndManagerId(NetworkManager, networkId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		wire := WireManager.Query().SubQuery()
+		vpc := VpcManager.Query().SubQuery()
+		return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
+			Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
+			Filter(sqlchemy.Equals(vpc.Field("manager_id"), networkinterface.ManagerId))
+	})
 	if err != nil {
 		return errors.Wrapf(err, "newFromCloudInterfaceAddress.FetchByExternalId(%s)", networkId)
 	}
diff --git a/pkg/compute/models/networkinterfaces.go b/pkg/compute/models/networkinterfaces.go
index 7926a9e1c3..c03453ed67 100644
--- a/pkg/compute/models/networkinterfaces.go
+++ b/pkg/compute/models/networkinterfaces.go
@@ -313,7 +313,10 @@ func (self *SNetworkInterface) SyncWithCloudNetworkInterface(ctx context.Context
 func (self *SNetworkInterface) Associate(associateId string) error {
 	switch self.AssociateType {
 	case api.NETWORK_INTERFACE_ASSOCIATE_TYPE_SERVER:
-		guest, err := db.FetchByExternalId(GuestManager, associateId)
+		guest, err := db.FetchByExternalIdAndManagerId(GuestManager, associateId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			sq := HostManager.Query().SubQuery()
+			return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("host_id"))).Filter(sqlchemy.Equals(q.Field("manager_id"), self.ManagerId))
+		})
 		if err != nil {
 			return errors.Wrapf(err, "failed to get guest for networkinterface %s associateId %s", self.Name, associateId)
 		}
diff --git a/pkg/compute/models/networks.go b/pkg/compute/models/networks.go
index 8c0c89c482..c12f821292 100644
--- a/pkg/compute/models/networks.go
+++ b/pkg/compute/models/networks.go
@@ -309,7 +309,17 @@ func (self *SNetwork) GetNetworkInterfacesCount() (int, error) {
 }
 
 func (manager *SNetworkManager) GetOrCreateClassicNetwork(wire *SWire) (*SNetwork, error) {
-	_network, err := db.FetchByExternalId(manager, wire.Id)
+	_network, err := db.FetchByExternalIdAndManagerId(manager, wire.Id, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		v := wire.GetVpc()
+		if v != nil {
+			wire := WireManager.Query().SubQuery()
+			vpc := VpcManager.Query().SubQuery()
+			return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
+				Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
+				Filter(sqlchemy.Equals(vpc.Field("manager_id"), v.ManagerId))
+		}
+		return q
+	})
 	if err == nil {
 		return _network.(*SNetwork), nil
 	}
diff --git a/pkg/compute/models/snapshots.go b/pkg/compute/models/snapshots.go
index d2ed35a76f..89a7cbdbce 100644
--- a/pkg/compute/models/snapshots.go
+++ b/pkg/compute/models/snapshots.go
@@ -877,7 +877,10 @@ func (manager *SSnapshotManager) newFromCloudSnapshot(ctx context.Context, userC
 	snapshot.ExternalId = extSnapshot.GetGlobalId()
 	var localDisk *SDisk
 	if len(extSnapshot.GetDiskId()) > 0 {
-		disk, err := db.FetchByExternalId(DiskManager, extSnapshot.GetDiskId())
+		disk, err := db.FetchByExternalIdAndManagerId(DiskManager, extSnapshot.GetDiskId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+			sq := StorageManager.Query().SubQuery()
+			return q.Join(sq, sqlchemy.Equals(q.Field("storage_id"), sq.Field("id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), provider.Id))
+		})
 		if err != nil {
 			log.Errorf("snapshot %s missing disk?", snapshot.Name)
 		} else {
diff --git a/pkg/compute/models/storagecaches.go b/pkg/compute/models/storagecaches.go
index 9e12ba8aa0..7fa02981fc 100644
--- a/pkg/compute/models/storagecaches.go
+++ b/pkg/compute/models/storagecaches.go
@@ -173,7 +173,9 @@ func (manager *SStoragecacheManager) SyncWithCloudStoragecache(ctx context.Conte
 	lockman.LockClass(ctx, manager, db.GetLockClassKey(manager, userCred))
 	defer lockman.ReleaseClass(ctx, manager, db.GetLockClassKey(manager, userCred))
 
-	localCacheObj, err := db.FetchByExternalId(manager, cloudCache.GetGlobalId())
+	localCacheObj, err := db.FetchByExternalIdAndManagerId(manager, cloudCache.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		return q.Equals("manager_id", provider.Id)
+	})
 	if err != nil {
 		if err == sql.ErrNoRows {
 			localCache, err := manager.newFromCloudStoragecache(ctx, userCred, cloudCache, provider)
diff --git a/pkg/compute/models/vpcs.go b/pkg/compute/models/vpcs.go
index 69de08b3b6..fbc3774a90 100644
--- a/pkg/compute/models/vpcs.go
+++ b/pkg/compute/models/vpcs.go
@@ -183,7 +183,9 @@ func (manager *SVpcManager) GetOrCreateVpcForClassicNetwork(host *SHost) (*SVpc,
 	region := host.GetRegion()
 	cloudprovider := host.GetCloudprovider()
 	externalId := manager.getVpcExternalIdForClassicNetwork(region.Id, cloudprovider.Id)
-	_vpc, err := db.FetchByExternalId(manager, externalId)
+	_vpc, err := db.FetchByExternalIdAndManagerId(manager, externalId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		return q.Equals("manager_id", host.ManagerId)
+	})
 	if err == nil {
 		return _vpc.(*SVpc), nil
 	}
@@ -310,19 +312,6 @@ func (manager *SVpcManager) FetchCustomizeColumns(
 	return rows
 }
 
-func (manager *SVpcManager) getVpcsByRegion(region *SCloudregion, provider *SCloudprovider) ([]SVpc, error) {
-	vpcs := make([]SVpc, 0)
-	q := manager.Query().Equals("cloudregion_id", region.Id)
-	if provider != nil {
-		q = q.Equals("manager_id", provider.Id)
-	}
-	err := db.FetchModelObjects(manager, q, &vpcs)
-	if err != nil {
-		return nil, err
-	}
-	return vpcs, nil
-}
-
 func (self *SVpc) setDefault(def bool) error {
 	var err error
 	if self.IsDefault != def {
@@ -342,7 +331,7 @@ func (manager *SVpcManager) SyncVPCs(ctx context.Context, userCred mcclient.Toke
 	remoteVPCs := make([]cloudprovider.ICloudVpc, 0)
 	syncResult := compare.SyncResult{}
 
-	dbVPCs, err := manager.getVpcsByRegion(region, provider)
+	dbVPCs, err := region.GetVpcs()
 	if err != nil {
 		syncResult.Error(err)
 		return nil, nil, syncResult
diff --git a/pkg/compute/models/wires.go b/pkg/compute/models/wires.go
index eeb4860c38..0a8252feeb 100644
--- a/pkg/compute/models/wires.go
+++ b/pkg/compute/models/wires.go
@@ -196,7 +196,10 @@ func (manager *SWireManager) GetOrCreateWireForClassicNetwork(vpc *SVpc, zone *S
 	} else {
 		name = fmt.Sprintf("emulate for zone %s vpc %s classic network", zone.Name, vpc.Id)
 	}
-	_wire, err := db.FetchByExternalId(manager, externalId)
+	_wire, err := db.FetchByExternalIdAndManagerId(manager, externalId, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+		sq := VpcManager.Query().SubQuery()
+		return q.Join(sq, sqlchemy.Equals(sq.Field("id"), q.Field("id"))).Filter(sqlchemy.Equals(sq.Field("manager_id"), vpc.ManagerId))
+	})
 	if err == nil {
 		return _wire.(*SWire), nil
 	}
diff --git a/pkg/compute/models/zones.go b/pkg/compute/models/zones.go
index 1ffcb3040d..c9a4b105a3 100644
--- a/pkg/compute/models/zones.go
+++ b/pkg/compute/models/zones.go
@@ -183,16 +183,6 @@ func (zone *SZone) GetCloudRegionId() string {
 	}
 }
 
-func (manager *SZoneManager) GetZonesByRegion(region *SCloudregion) ([]SZone, error) {
-	zones := make([]SZone, 0)
-	q := manager.Query().Equals("cloudregion_id", region.Id)
-	err := db.FetchModelObjects(manager, q, &zones)
-	if err != nil {
-		return nil, err
-	}
-	return zones, nil
-}
-
 func (manager *SZoneManager) SyncZones(ctx context.Context, userCred mcclient.TokenCredential, region *SCloudregion, zones []cloudprovider.ICloudZone) ([]SZone, []cloudprovider.ICloudZone, compare.SyncResult) {
 	lockman.LockClass(ctx, manager, db.GetLockClassKey(manager, userCred))
 	defer lockman.ReleaseClass(ctx, manager, db.GetLockClassKey(manager, userCred))
@@ -201,7 +191,7 @@ func (manager *SZoneManager) SyncZones(ctx context.Context, userCred mcclient.To
 	remoteZones := make([]cloudprovider.ICloudZone, 0)
 	syncResult := compare.SyncResult{}
 
-	dbZones, err := manager.GetZonesByRegion(region)
+	dbZones, err := region.GetZones()
 	if err != nil {
 		syncResult.Error(err)
 		return nil, nil, syncResult
diff --git a/pkg/compute/regiondrivers/huawei.go b/pkg/compute/regiondrivers/huawei.go
index 9595df2e47..9f15a74597 100644
--- a/pkg/compute/regiondrivers/huawei.go
+++ b/pkg/compute/regiondrivers/huawei.go
@@ -27,6 +27,7 @@ import (
 	"yunion.io/x/pkg/errors"
 	"yunion.io/x/pkg/util/secrules"
 	"yunion.io/x/pkg/utils"
+	"yunion.io/x/sqlchemy"
 
 	billing_api "yunion.io/x/onecloud/pkg/apis/billing"
 	api "yunion.io/x/onecloud/pkg/apis/compute"
@@ -1908,7 +1909,9 @@ func (self *SHuaWeiRegionDriver) RequestCreateLoadbalancer(ctx context.Context,
 					return nil, errors.Wrap(err, "Huawei.RequestCreateLoadbalancer.Associate")
 				}
 
-				eip, err := db.FetchByExternalId(models.ElasticipManager, ieip.GetGlobalId())
+				eip, err := db.FetchByExternalIdAndManagerId(models.ElasticipManager, ieip.GetGlobalId(), func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
+					return q.Equals("manager_id", lb.MarkUnDelete)
+				})
 				if err != nil {
 					return nil, errors.Wrap(err, "Huawei.RequestCreateLoadbalancer.FetchByExternalId")
 				}