diff --git a/Cargo.toml b/Cargo.toml
index bdb2b40..a47b5fb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dragonfly-api"
-version = "2.0.45"
+version = "2.0.46"
 authors = ["Gaius <gaius.qi@gmail.com>"]
 edition = "2021"
 license = "Apache-2.0"
diff --git a/pkg/apis/scheduler/v2/scheduler.pb.go b/pkg/apis/scheduler/v2/scheduler.pb.go
index aa8a3f5..9e86733 100644
--- a/pkg/apis/scheduler/v2/scheduler.pb.go
+++ b/pkg/apis/scheduler/v2/scheduler.pb.go
@@ -184,7 +184,7 @@ type DownloadPeerBackToSourceStartedRequest struct {
 	unknownFields protoimpl.UnknownFields
 
 	// The description of the back-to-source reason.
-	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
+	Description *string `protobuf:"bytes,1,opt,name=description,proto3,oneof" json:"description,omitempty"`
 }
 
 func (x *DownloadPeerBackToSourceStartedRequest) Reset() {
@@ -220,8 +220,57 @@ func (*DownloadPeerBackToSourceStartedRequest) Descriptor() ([]byte, []int) {
 }
 
 func (x *DownloadPeerBackToSourceStartedRequest) GetDescription() string {
-	if x != nil {
-		return x.Description
+	if x != nil && x.Description != nil {
+		return *x.Description
+	}
+	return ""
+}
+
+// RescheduleRequest represents reschedule request of AnnouncePeerRequest.
+type RescheduleRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// The description of the reschedule reason.
+	Description *string `protobuf:"bytes,1,opt,name=description,proto3,oneof" json:"description,omitempty"`
+}
+
+func (x *RescheduleRequest) Reset() {
+	*x = RescheduleRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RescheduleRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RescheduleRequest) ProtoMessage() {}
+
+func (x *RescheduleRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RescheduleRequest.ProtoReflect.Descriptor instead.
+func (*RescheduleRequest) Descriptor() ([]byte, []int) {
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *RescheduleRequest) GetDescription() string {
+	if x != nil && x.Description != nil {
+		return *x.Description
 	}
 	return ""
 }
@@ -241,7 +290,7 @@ type DownloadPeerFinishedRequest struct {
 func (x *DownloadPeerFinishedRequest) Reset() {
 	*x = DownloadPeerFinishedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[4]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -254,7 +303,7 @@ func (x *DownloadPeerFinishedRequest) String() string {
 func (*DownloadPeerFinishedRequest) ProtoMessage() {}
 
 func (x *DownloadPeerFinishedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[4]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -267,7 +316,7 @@ func (x *DownloadPeerFinishedRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DownloadPeerFinishedRequest.ProtoReflect.Descriptor instead.
 func (*DownloadPeerFinishedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{4}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *DownloadPeerFinishedRequest) GetContentLength() int64 {
@@ -299,7 +348,7 @@ type DownloadPeerBackToSourceFinishedRequest struct {
 func (x *DownloadPeerBackToSourceFinishedRequest) Reset() {
 	*x = DownloadPeerBackToSourceFinishedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[5]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -312,7 +361,7 @@ func (x *DownloadPeerBackToSourceFinishedRequest) String() string {
 func (*DownloadPeerBackToSourceFinishedRequest) ProtoMessage() {}
 
 func (x *DownloadPeerBackToSourceFinishedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[5]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -325,7 +374,7 @@ func (x *DownloadPeerBackToSourceFinishedRequest) ProtoReflect() protoreflect.Me
 
 // Deprecated: Use DownloadPeerBackToSourceFinishedRequest.ProtoReflect.Descriptor instead.
 func (*DownloadPeerBackToSourceFinishedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{5}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *DownloadPeerBackToSourceFinishedRequest) GetContentLength() int64 {
@@ -349,13 +398,13 @@ type DownloadPeerFailedRequest struct {
 	unknownFields protoimpl.UnknownFields
 
 	// The description of the download failed.
-	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
+	Description *string `protobuf:"bytes,1,opt,name=description,proto3,oneof" json:"description,omitempty"`
 }
 
 func (x *DownloadPeerFailedRequest) Reset() {
 	*x = DownloadPeerFailedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[6]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -368,7 +417,7 @@ func (x *DownloadPeerFailedRequest) String() string {
 func (*DownloadPeerFailedRequest) ProtoMessage() {}
 
 func (x *DownloadPeerFailedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[6]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -381,12 +430,12 @@ func (x *DownloadPeerFailedRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DownloadPeerFailedRequest.ProtoReflect.Descriptor instead.
 func (*DownloadPeerFailedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{6}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *DownloadPeerFailedRequest) GetDescription() string {
-	if x != nil {
-		return x.Description
+	if x != nil && x.Description != nil {
+		return *x.Description
 	}
 	return ""
 }
@@ -398,13 +447,13 @@ type DownloadPeerBackToSourceFailedRequest struct {
 	unknownFields protoimpl.UnknownFields
 
 	// The description of the download back-to-source failed.
-	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
+	Description *string `protobuf:"bytes,1,opt,name=description,proto3,oneof" json:"description,omitempty"`
 }
 
 func (x *DownloadPeerBackToSourceFailedRequest) Reset() {
 	*x = DownloadPeerBackToSourceFailedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[7]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -417,7 +466,7 @@ func (x *DownloadPeerBackToSourceFailedRequest) String() string {
 func (*DownloadPeerBackToSourceFailedRequest) ProtoMessage() {}
 
 func (x *DownloadPeerBackToSourceFailedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[7]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -430,12 +479,12 @@ func (x *DownloadPeerBackToSourceFailedRequest) ProtoReflect() protoreflect.Mess
 
 // Deprecated: Use DownloadPeerBackToSourceFailedRequest.ProtoReflect.Descriptor instead.
 func (*DownloadPeerBackToSourceFailedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{7}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *DownloadPeerBackToSourceFailedRequest) GetDescription() string {
-	if x != nil {
-		return x.Description
+	if x != nil && x.Description != nil {
+		return *x.Description
 	}
 	return ""
 }
@@ -453,7 +502,7 @@ type DownloadPieceFinishedRequest struct {
 func (x *DownloadPieceFinishedRequest) Reset() {
 	*x = DownloadPieceFinishedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[8]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -466,7 +515,7 @@ func (x *DownloadPieceFinishedRequest) String() string {
 func (*DownloadPieceFinishedRequest) ProtoMessage() {}
 
 func (x *DownloadPieceFinishedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[8]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -479,7 +528,7 @@ func (x *DownloadPieceFinishedRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DownloadPieceFinishedRequest.ProtoReflect.Descriptor instead.
 func (*DownloadPieceFinishedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{8}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *DownloadPieceFinishedRequest) GetPiece() *v2.Piece {
@@ -502,7 +551,7 @@ type DownloadPieceBackToSourceFinishedRequest struct {
 func (x *DownloadPieceBackToSourceFinishedRequest) Reset() {
 	*x = DownloadPieceBackToSourceFinishedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[9]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -515,7 +564,7 @@ func (x *DownloadPieceBackToSourceFinishedRequest) String() string {
 func (*DownloadPieceBackToSourceFinishedRequest) ProtoMessage() {}
 
 func (x *DownloadPieceBackToSourceFinishedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[9]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[10]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -528,7 +577,7 @@ func (x *DownloadPieceBackToSourceFinishedRequest) ProtoReflect() protoreflect.M
 
 // Deprecated: Use DownloadPieceBackToSourceFinishedRequest.ProtoReflect.Descriptor instead.
 func (*DownloadPieceBackToSourceFinishedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{9}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{10}
 }
 
 func (x *DownloadPieceBackToSourceFinishedRequest) GetPiece() *v2.Piece {
@@ -553,7 +602,7 @@ type DownloadPieceFailedRequest struct {
 func (x *DownloadPieceFailedRequest) Reset() {
 	*x = DownloadPieceFailedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[10]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[11]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -566,7 +615,7 @@ func (x *DownloadPieceFailedRequest) String() string {
 func (*DownloadPieceFailedRequest) ProtoMessage() {}
 
 func (x *DownloadPieceFailedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[10]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[11]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -579,7 +628,7 @@ func (x *DownloadPieceFailedRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DownloadPieceFailedRequest.ProtoReflect.Descriptor instead.
 func (*DownloadPieceFailedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{10}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{11}
 }
 
 func (x *DownloadPieceFailedRequest) GetPiece() *v2.Piece {
@@ -613,7 +662,7 @@ type HTTPResponse struct {
 func (x *HTTPResponse) Reset() {
 	*x = HTTPResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[11]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[12]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -626,7 +675,7 @@ func (x *HTTPResponse) String() string {
 func (*HTTPResponse) ProtoMessage() {}
 
 func (x *HTTPResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[11]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[12]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -639,7 +688,7 @@ func (x *HTTPResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use HTTPResponse.ProtoReflect.Descriptor instead.
 func (*HTTPResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{11}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{12}
 }
 
 func (x *HTTPResponse) GetHeader() map[string]string {
@@ -673,7 +722,7 @@ type HDFSResponse struct {
 func (x *HDFSResponse) Reset() {
 	*x = HDFSResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[12]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[13]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -686,7 +735,7 @@ func (x *HDFSResponse) String() string {
 func (*HDFSResponse) ProtoMessage() {}
 
 func (x *HDFSResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[12]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[13]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -699,7 +748,7 @@ func (x *HDFSResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use HDFSResponse.ProtoReflect.Descriptor instead.
 func (*HDFSResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{12}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{13}
 }
 
 // S3Response represents s3 protocol response of DownloadPieceBackToSourceFailedRequest.
@@ -712,7 +761,7 @@ type S3Response struct {
 func (x *S3Response) Reset() {
 	*x = S3Response{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[13]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[14]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -725,7 +774,7 @@ func (x *S3Response) String() string {
 func (*S3Response) ProtoMessage() {}
 
 func (x *S3Response) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[13]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[14]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -738,7 +787,7 @@ func (x *S3Response) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use S3Response.ProtoReflect.Descriptor instead.
 func (*S3Response) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{13}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{14}
 }
 
 // OSSResponse represents oss protocol response of DownloadPieceBackToSourceFailedRequest.
@@ -751,7 +800,7 @@ type OSSResponse struct {
 func (x *OSSResponse) Reset() {
 	*x = OSSResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[14]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[15]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -764,7 +813,7 @@ func (x *OSSResponse) String() string {
 func (*OSSResponse) ProtoMessage() {}
 
 func (x *OSSResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[14]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[15]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -777,7 +826,7 @@ func (x *OSSResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use OSSResponse.ProtoReflect.Descriptor instead.
 func (*OSSResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{14}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{15}
 }
 
 // DownloadPieceBackToSourceFailedRequest downloads piece back-to-source failed request of AnnouncePeerRequest.
@@ -800,7 +849,7 @@ type DownloadPieceBackToSourceFailedRequest struct {
 func (x *DownloadPieceBackToSourceFailedRequest) Reset() {
 	*x = DownloadPieceBackToSourceFailedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[15]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[16]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -813,7 +862,7 @@ func (x *DownloadPieceBackToSourceFailedRequest) String() string {
 func (*DownloadPieceBackToSourceFailedRequest) ProtoMessage() {}
 
 func (x *DownloadPieceBackToSourceFailedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[15]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[16]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -826,7 +875,7 @@ func (x *DownloadPieceBackToSourceFailedRequest) ProtoReflect() protoreflect.Mes
 
 // Deprecated: Use DownloadPieceBackToSourceFailedRequest.ProtoReflect.Descriptor instead.
 func (*DownloadPieceBackToSourceFailedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{15}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{16}
 }
 
 func (x *DownloadPieceBackToSourceFailedRequest) GetPiece() *v2.Piece {
@@ -912,13 +961,13 @@ type SyncPiecesFailedRequest struct {
 	// Parent peer id.
 	ParentId string `protobuf:"bytes,1,opt,name=parent_id,json=parentId,proto3" json:"parent_id,omitempty"`
 	// The description of the error.
-	Description string `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"`
+	Description *string `protobuf:"bytes,2,opt,name=description,proto3,oneof" json:"description,omitempty"`
 }
 
 func (x *SyncPiecesFailedRequest) Reset() {
 	*x = SyncPiecesFailedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[16]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[17]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -931,7 +980,7 @@ func (x *SyncPiecesFailedRequest) String() string {
 func (*SyncPiecesFailedRequest) ProtoMessage() {}
 
 func (x *SyncPiecesFailedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[16]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[17]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -944,7 +993,7 @@ func (x *SyncPiecesFailedRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SyncPiecesFailedRequest.ProtoReflect.Descriptor instead.
 func (*SyncPiecesFailedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{16}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{17}
 }
 
 func (x *SyncPiecesFailedRequest) GetParentId() string {
@@ -955,8 +1004,8 @@ func (x *SyncPiecesFailedRequest) GetParentId() string {
 }
 
 func (x *SyncPiecesFailedRequest) GetDescription() string {
-	if x != nil {
-		return x.Description
+	if x != nil && x.Description != nil {
+		return *x.Description
 	}
 	return ""
 }
@@ -979,6 +1028,7 @@ type AnnouncePeerRequest struct {
 	//	*AnnouncePeerRequest_RegisterSeedPeerRequest
 	//	*AnnouncePeerRequest_DownloadPeerStartedRequest
 	//	*AnnouncePeerRequest_DownloadPeerBackToSourceStartedRequest
+	//	*AnnouncePeerRequest_RescheduleRequest
 	//	*AnnouncePeerRequest_DownloadPeerFinishedRequest
 	//	*AnnouncePeerRequest_DownloadPeerBackToSourceFinishedRequest
 	//	*AnnouncePeerRequest_DownloadPeerFailedRequest
@@ -994,7 +1044,7 @@ type AnnouncePeerRequest struct {
 func (x *AnnouncePeerRequest) Reset() {
 	*x = AnnouncePeerRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[17]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[18]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1007,7 +1057,7 @@ func (x *AnnouncePeerRequest) String() string {
 func (*AnnouncePeerRequest) ProtoMessage() {}
 
 func (x *AnnouncePeerRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[17]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[18]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1020,7 +1070,7 @@ func (x *AnnouncePeerRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AnnouncePeerRequest.ProtoReflect.Descriptor instead.
 func (*AnnouncePeerRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{17}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{18}
 }
 
 func (x *AnnouncePeerRequest) GetHostId() string {
@@ -1079,6 +1129,13 @@ func (x *AnnouncePeerRequest) GetDownloadPeerBackToSourceStartedRequest() *Downl
 	return nil
 }
 
+func (x *AnnouncePeerRequest) GetRescheduleRequest() *RescheduleRequest {
+	if x, ok := x.GetRequest().(*AnnouncePeerRequest_RescheduleRequest); ok {
+		return x.RescheduleRequest
+	}
+	return nil
+}
+
 func (x *AnnouncePeerRequest) GetDownloadPeerFinishedRequest() *DownloadPeerFinishedRequest {
 	if x, ok := x.GetRequest().(*AnnouncePeerRequest_DownloadPeerFinishedRequest); ok {
 		return x.DownloadPeerFinishedRequest
@@ -1162,40 +1219,44 @@ type AnnouncePeerRequest_DownloadPeerBackToSourceStartedRequest struct {
 	DownloadPeerBackToSourceStartedRequest *DownloadPeerBackToSourceStartedRequest `protobuf:"bytes,7,opt,name=download_peer_back_to_source_started_request,json=downloadPeerBackToSourceStartedRequest,proto3,oneof"`
 }
 
+type AnnouncePeerRequest_RescheduleRequest struct {
+	RescheduleRequest *RescheduleRequest `protobuf:"bytes,8,opt,name=reschedule_request,json=rescheduleRequest,proto3,oneof"`
+}
+
 type AnnouncePeerRequest_DownloadPeerFinishedRequest struct {
-	DownloadPeerFinishedRequest *DownloadPeerFinishedRequest `protobuf:"bytes,8,opt,name=download_peer_finished_request,json=downloadPeerFinishedRequest,proto3,oneof"`
+	DownloadPeerFinishedRequest *DownloadPeerFinishedRequest `protobuf:"bytes,9,opt,name=download_peer_finished_request,json=downloadPeerFinishedRequest,proto3,oneof"`
 }
 
 type AnnouncePeerRequest_DownloadPeerBackToSourceFinishedRequest struct {
-	DownloadPeerBackToSourceFinishedRequest *DownloadPeerBackToSourceFinishedRequest `protobuf:"bytes,9,opt,name=download_peer_back_to_source_finished_request,json=downloadPeerBackToSourceFinishedRequest,proto3,oneof"`
+	DownloadPeerBackToSourceFinishedRequest *DownloadPeerBackToSourceFinishedRequest `protobuf:"bytes,10,opt,name=download_peer_back_to_source_finished_request,json=downloadPeerBackToSourceFinishedRequest,proto3,oneof"`
 }
 
 type AnnouncePeerRequest_DownloadPeerFailedRequest struct {
-	DownloadPeerFailedRequest *DownloadPeerFailedRequest `protobuf:"bytes,10,opt,name=download_peer_failed_request,json=downloadPeerFailedRequest,proto3,oneof"`
+	DownloadPeerFailedRequest *DownloadPeerFailedRequest `protobuf:"bytes,11,opt,name=download_peer_failed_request,json=downloadPeerFailedRequest,proto3,oneof"`
 }
 
 type AnnouncePeerRequest_DownloadPeerBackToSourceFailedRequest struct {
-	DownloadPeerBackToSourceFailedRequest *DownloadPeerBackToSourceFailedRequest `protobuf:"bytes,11,opt,name=download_peer_back_to_source_failed_request,json=downloadPeerBackToSourceFailedRequest,proto3,oneof"`
+	DownloadPeerBackToSourceFailedRequest *DownloadPeerBackToSourceFailedRequest `protobuf:"bytes,12,opt,name=download_peer_back_to_source_failed_request,json=downloadPeerBackToSourceFailedRequest,proto3,oneof"`
 }
 
 type AnnouncePeerRequest_DownloadPieceFinishedRequest struct {
-	DownloadPieceFinishedRequest *DownloadPieceFinishedRequest `protobuf:"bytes,12,opt,name=download_piece_finished_request,json=downloadPieceFinishedRequest,proto3,oneof"`
+	DownloadPieceFinishedRequest *DownloadPieceFinishedRequest `protobuf:"bytes,13,opt,name=download_piece_finished_request,json=downloadPieceFinishedRequest,proto3,oneof"`
 }
 
 type AnnouncePeerRequest_DownloadPieceBackToSourceFinishedRequest struct {
-	DownloadPieceBackToSourceFinishedRequest *DownloadPieceBackToSourceFinishedRequest `protobuf:"bytes,13,opt,name=download_piece_back_to_source_finished_request,json=downloadPieceBackToSourceFinishedRequest,proto3,oneof"`
+	DownloadPieceBackToSourceFinishedRequest *DownloadPieceBackToSourceFinishedRequest `protobuf:"bytes,14,opt,name=download_piece_back_to_source_finished_request,json=downloadPieceBackToSourceFinishedRequest,proto3,oneof"`
 }
 
 type AnnouncePeerRequest_DownloadPieceFailedRequest struct {
-	DownloadPieceFailedRequest *DownloadPieceFailedRequest `protobuf:"bytes,14,opt,name=download_piece_failed_request,json=downloadPieceFailedRequest,proto3,oneof"`
+	DownloadPieceFailedRequest *DownloadPieceFailedRequest `protobuf:"bytes,15,opt,name=download_piece_failed_request,json=downloadPieceFailedRequest,proto3,oneof"`
 }
 
 type AnnouncePeerRequest_DownloadPieceBackToSourceFailedRequest struct {
-	DownloadPieceBackToSourceFailedRequest *DownloadPieceBackToSourceFailedRequest `protobuf:"bytes,15,opt,name=download_piece_back_to_source_failed_request,json=downloadPieceBackToSourceFailedRequest,proto3,oneof"`
+	DownloadPieceBackToSourceFailedRequest *DownloadPieceBackToSourceFailedRequest `protobuf:"bytes,16,opt,name=download_piece_back_to_source_failed_request,json=downloadPieceBackToSourceFailedRequest,proto3,oneof"`
 }
 
 type AnnouncePeerRequest_SyncPiecesFailedRequest struct {
-	SyncPiecesFailedRequest *SyncPiecesFailedRequest `protobuf:"bytes,16,opt,name=sync_pieces_failed_request,json=syncPiecesFailedRequest,proto3,oneof"`
+	SyncPiecesFailedRequest *SyncPiecesFailedRequest `protobuf:"bytes,17,opt,name=sync_pieces_failed_request,json=syncPiecesFailedRequest,proto3,oneof"`
 }
 
 func (*AnnouncePeerRequest_RegisterPeerRequest) isAnnouncePeerRequest_Request() {}
@@ -1206,6 +1267,8 @@ func (*AnnouncePeerRequest_DownloadPeerStartedRequest) isAnnouncePeerRequest_Req
 
 func (*AnnouncePeerRequest_DownloadPeerBackToSourceStartedRequest) isAnnouncePeerRequest_Request() {}
 
+func (*AnnouncePeerRequest_RescheduleRequest) isAnnouncePeerRequest_Request() {}
+
 func (*AnnouncePeerRequest_DownloadPeerFinishedRequest) isAnnouncePeerRequest_Request() {}
 
 func (*AnnouncePeerRequest_DownloadPeerBackToSourceFinishedRequest) isAnnouncePeerRequest_Request() {}
@@ -1235,7 +1298,7 @@ type EmptyTaskResponse struct {
 func (x *EmptyTaskResponse) Reset() {
 	*x = EmptyTaskResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[18]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[19]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1248,7 +1311,7 @@ func (x *EmptyTaskResponse) String() string {
 func (*EmptyTaskResponse) ProtoMessage() {}
 
 func (x *EmptyTaskResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[18]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[19]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1261,7 +1324,7 @@ func (x *EmptyTaskResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use EmptyTaskResponse.ProtoReflect.Descriptor instead.
 func (*EmptyTaskResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{18}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{19}
 }
 
 // NormalTaskResponse represents normal task response of AnnouncePeerResponse.
@@ -1279,7 +1342,7 @@ type NormalTaskResponse struct {
 func (x *NormalTaskResponse) Reset() {
 	*x = NormalTaskResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[19]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[20]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1292,7 +1355,7 @@ func (x *NormalTaskResponse) String() string {
 func (*NormalTaskResponse) ProtoMessage() {}
 
 func (x *NormalTaskResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[19]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[20]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1305,7 +1368,7 @@ func (x *NormalTaskResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use NormalTaskResponse.ProtoReflect.Descriptor instead.
 func (*NormalTaskResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{19}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{20}
 }
 
 func (x *NormalTaskResponse) GetCandidateParents() []*v2.Peer {
@@ -1329,13 +1392,13 @@ type NeedBackToSourceResponse struct {
 	unknownFields protoimpl.UnknownFields
 
 	// The description of the back-to-source reason.
-	Description string `protobuf:"bytes,1,opt,name=description,proto3" json:"description,omitempty"`
+	Description *string `protobuf:"bytes,1,opt,name=description,proto3,oneof" json:"description,omitempty"`
 }
 
 func (x *NeedBackToSourceResponse) Reset() {
 	*x = NeedBackToSourceResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[20]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[21]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1348,7 +1411,7 @@ func (x *NeedBackToSourceResponse) String() string {
 func (*NeedBackToSourceResponse) ProtoMessage() {}
 
 func (x *NeedBackToSourceResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[20]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[21]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1361,12 +1424,12 @@ func (x *NeedBackToSourceResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use NeedBackToSourceResponse.ProtoReflect.Descriptor instead.
 func (*NeedBackToSourceResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{20}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{21}
 }
 
 func (x *NeedBackToSourceResponse) GetDescription() string {
-	if x != nil {
-		return x.Description
+	if x != nil && x.Description != nil {
+		return *x.Description
 	}
 	return ""
 }
@@ -1388,7 +1451,7 @@ type AnnouncePeerResponse struct {
 func (x *AnnouncePeerResponse) Reset() {
 	*x = AnnouncePeerResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[21]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[22]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1401,7 +1464,7 @@ func (x *AnnouncePeerResponse) String() string {
 func (*AnnouncePeerResponse) ProtoMessage() {}
 
 func (x *AnnouncePeerResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[21]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[22]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1414,7 +1477,7 @@ func (x *AnnouncePeerResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AnnouncePeerResponse.ProtoReflect.Descriptor instead.
 func (*AnnouncePeerResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{21}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{22}
 }
 
 func (m *AnnouncePeerResponse) GetResponse() isAnnouncePeerResponse_Response {
@@ -1484,7 +1547,7 @@ type StatPeerRequest struct {
 func (x *StatPeerRequest) Reset() {
 	*x = StatPeerRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[22]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[23]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1497,7 +1560,7 @@ func (x *StatPeerRequest) String() string {
 func (*StatPeerRequest) ProtoMessage() {}
 
 func (x *StatPeerRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[22]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[23]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1510,7 +1573,7 @@ func (x *StatPeerRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use StatPeerRequest.ProtoReflect.Descriptor instead.
 func (*StatPeerRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{22}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{23}
 }
 
 func (x *StatPeerRequest) GetHostId() string {
@@ -1552,7 +1615,7 @@ type ExchangePeerRequest struct {
 func (x *ExchangePeerRequest) Reset() {
 	*x = ExchangePeerRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[23]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[24]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1565,7 +1628,7 @@ func (x *ExchangePeerRequest) String() string {
 func (*ExchangePeerRequest) ProtoMessage() {}
 
 func (x *ExchangePeerRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[23]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[24]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1578,7 +1641,7 @@ func (x *ExchangePeerRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ExchangePeerRequest.ProtoReflect.Descriptor instead.
 func (*ExchangePeerRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{23}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{24}
 }
 
 func (x *ExchangePeerRequest) GetHostId() string {
@@ -1613,7 +1676,7 @@ type ExchangePeerResponse struct {
 func (x *ExchangePeerResponse) Reset() {
 	*x = ExchangePeerResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[24]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[25]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1626,7 +1689,7 @@ func (x *ExchangePeerResponse) String() string {
 func (*ExchangePeerResponse) ProtoMessage() {}
 
 func (x *ExchangePeerResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[24]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[25]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1639,7 +1702,7 @@ func (x *ExchangePeerResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ExchangePeerResponse.ProtoReflect.Descriptor instead.
 func (*ExchangePeerResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{24}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{25}
 }
 
 // LeavePeerRequest represents request of LeavePeer.
@@ -1659,7 +1722,7 @@ type LeavePeerRequest struct {
 func (x *LeavePeerRequest) Reset() {
 	*x = LeavePeerRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[25]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[26]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1672,7 +1735,7 @@ func (x *LeavePeerRequest) String() string {
 func (*LeavePeerRequest) ProtoMessage() {}
 
 func (x *LeavePeerRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[25]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[26]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1685,7 +1748,7 @@ func (x *LeavePeerRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use LeavePeerRequest.ProtoReflect.Descriptor instead.
 func (*LeavePeerRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{25}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{26}
 }
 
 func (x *LeavePeerRequest) GetHostId() string {
@@ -1722,7 +1785,7 @@ type StatTaskRequest struct {
 func (x *StatTaskRequest) Reset() {
 	*x = StatTaskRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[26]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[27]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1735,7 +1798,7 @@ func (x *StatTaskRequest) String() string {
 func (*StatTaskRequest) ProtoMessage() {}
 
 func (x *StatTaskRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[26]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[27]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1748,7 +1811,7 @@ func (x *StatTaskRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use StatTaskRequest.ProtoReflect.Descriptor instead.
 func (*StatTaskRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{26}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{27}
 }
 
 func (x *StatTaskRequest) GetId() string {
@@ -1771,7 +1834,7 @@ type AnnounceHostRequest struct {
 func (x *AnnounceHostRequest) Reset() {
 	*x = AnnounceHostRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[27]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[28]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1784,7 +1847,7 @@ func (x *AnnounceHostRequest) String() string {
 func (*AnnounceHostRequest) ProtoMessage() {}
 
 func (x *AnnounceHostRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[27]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[28]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1797,7 +1860,7 @@ func (x *AnnounceHostRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AnnounceHostRequest.ProtoReflect.Descriptor instead.
 func (*AnnounceHostRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{27}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{28}
 }
 
 func (x *AnnounceHostRequest) GetHost() *v2.Host {
@@ -1820,7 +1883,7 @@ type LeaveHostRequest struct {
 func (x *LeaveHostRequest) Reset() {
 	*x = LeaveHostRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[28]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[29]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1833,7 +1896,7 @@ func (x *LeaveHostRequest) String() string {
 func (*LeaveHostRequest) ProtoMessage() {}
 
 func (x *LeaveHostRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[28]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[29]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1846,7 +1909,7 @@ func (x *LeaveHostRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use LeaveHostRequest.ProtoReflect.Descriptor instead.
 func (*LeaveHostRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{28}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{29}
 }
 
 func (x *LeaveHostRequest) GetId() string {
@@ -1866,7 +1929,7 @@ type ProbeStartedRequest struct {
 func (x *ProbeStartedRequest) Reset() {
 	*x = ProbeStartedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[29]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[30]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1879,7 +1942,7 @@ func (x *ProbeStartedRequest) String() string {
 func (*ProbeStartedRequest) ProtoMessage() {}
 
 func (x *ProbeStartedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[29]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[30]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1892,7 +1955,7 @@ func (x *ProbeStartedRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ProbeStartedRequest.ProtoReflect.Descriptor instead.
 func (*ProbeStartedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{29}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{30}
 }
 
 // Probe information.
@@ -1912,7 +1975,7 @@ type Probe struct {
 func (x *Probe) Reset() {
 	*x = Probe{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[30]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[31]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1925,7 +1988,7 @@ func (x *Probe) String() string {
 func (*Probe) ProtoMessage() {}
 
 func (x *Probe) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[30]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[31]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1938,7 +2001,7 @@ func (x *Probe) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Probe.ProtoReflect.Descriptor instead.
 func (*Probe) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{30}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{31}
 }
 
 func (x *Probe) GetHost() *v2.Host {
@@ -1975,7 +2038,7 @@ type ProbeFinishedRequest struct {
 func (x *ProbeFinishedRequest) Reset() {
 	*x = ProbeFinishedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[31]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[32]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1988,7 +2051,7 @@ func (x *ProbeFinishedRequest) String() string {
 func (*ProbeFinishedRequest) ProtoMessage() {}
 
 func (x *ProbeFinishedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[31]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[32]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2001,7 +2064,7 @@ func (x *ProbeFinishedRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ProbeFinishedRequest.ProtoReflect.Descriptor instead.
 func (*ProbeFinishedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{31}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{32}
 }
 
 func (x *ProbeFinishedRequest) GetProbes() []*Probe {
@@ -2020,13 +2083,13 @@ type FailedProbe struct {
 	// Destination host metadata.
 	Host *v2.Host `protobuf:"bytes,1,opt,name=host,proto3" json:"host,omitempty"`
 	// The description of probing failed.
-	Description string `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"`
+	Description *string `protobuf:"bytes,2,opt,name=description,proto3,oneof" json:"description,omitempty"`
 }
 
 func (x *FailedProbe) Reset() {
 	*x = FailedProbe{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[32]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[33]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2039,7 +2102,7 @@ func (x *FailedProbe) String() string {
 func (*FailedProbe) ProtoMessage() {}
 
 func (x *FailedProbe) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[32]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[33]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2052,7 +2115,7 @@ func (x *FailedProbe) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use FailedProbe.ProtoReflect.Descriptor instead.
 func (*FailedProbe) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{32}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{33}
 }
 
 func (x *FailedProbe) GetHost() *v2.Host {
@@ -2063,8 +2126,8 @@ func (x *FailedProbe) GetHost() *v2.Host {
 }
 
 func (x *FailedProbe) GetDescription() string {
-	if x != nil {
-		return x.Description
+	if x != nil && x.Description != nil {
+		return *x.Description
 	}
 	return ""
 }
@@ -2082,7 +2145,7 @@ type ProbeFailedRequest struct {
 func (x *ProbeFailedRequest) Reset() {
 	*x = ProbeFailedRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[33]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[34]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2095,7 +2158,7 @@ func (x *ProbeFailedRequest) String() string {
 func (*ProbeFailedRequest) ProtoMessage() {}
 
 func (x *ProbeFailedRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[33]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[34]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2108,7 +2171,7 @@ func (x *ProbeFailedRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ProbeFailedRequest.ProtoReflect.Descriptor instead.
 func (*ProbeFailedRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{33}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{34}
 }
 
 func (x *ProbeFailedRequest) GetProbes() []*FailedProbe {
@@ -2137,7 +2200,7 @@ type SyncProbesRequest struct {
 func (x *SyncProbesRequest) Reset() {
 	*x = SyncProbesRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[34]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[35]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2150,7 +2213,7 @@ func (x *SyncProbesRequest) String() string {
 func (*SyncProbesRequest) ProtoMessage() {}
 
 func (x *SyncProbesRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[34]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[35]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2163,7 +2226,7 @@ func (x *SyncProbesRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SyncProbesRequest.ProtoReflect.Descriptor instead.
 func (*SyncProbesRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{34}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{35}
 }
 
 func (x *SyncProbesRequest) GetHost() *v2.Host {
@@ -2236,7 +2299,7 @@ type SyncProbesResponse struct {
 func (x *SyncProbesResponse) Reset() {
 	*x = SyncProbesResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[35]
+		mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[36]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2249,7 +2312,7 @@ func (x *SyncProbesResponse) String() string {
 func (*SyncProbesResponse) ProtoMessage() {}
 
 func (x *SyncProbesResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[35]
+	mi := &file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[36]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2262,7 +2325,7 @@ func (x *SyncProbesResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SyncProbesResponse.ProtoReflect.Descriptor instead.
 func (*SyncProbesResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{35}
+	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP(), []int{36}
 }
 
 func (x *SyncProbesResponse) GetHosts() []*v2.Host {
@@ -2300,379 +2363,397 @@ var file_pkg_apis_scheduler_v2_scheduler_proto_rawDesc = []byte{
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+	0x53, 0x79, 0x6e, 0x63, 0x50, 0x72, 0x6f, 0x62, 0x65, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
+	0x74, 0x1a, 0x20, 0x2e, 0x73, 0x63, 0x68, 0x65, 0x64, 0x75, 0x6c, 0x65, 0x72, 0x2e, 0x76, 0x32,
+	0x2e, 0x53, 0x79, 0x6e, 0x63, 0x50, 0x72, 0x6f, 0x62, 0x65, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f,
+	0x6e, 0x73, 0x65, 0x28, 0x01, 0x30, 0x01, 0x42, 0x2f, 0x5a, 0x2d, 0x64, 0x37, 0x79, 0x2e, 0x69,
+	0x6f, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x76, 0x32, 0x2f, 0x70, 0x6b, 0x67, 0x2f, 0x61, 0x70, 0x69,
+	0x73, 0x2f, 0x73, 0x63, 0x68, 0x65, 0x64, 0x75, 0x6c, 0x65, 0x72, 0x2f, 0x76, 0x32, 0x3b, 0x73,
+	0x63, 0x68, 0x65, 0x64, 0x75, 0x6c, 0x65, 0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -2687,116 +2768,118 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_rawDescGZIP() []byte {
 	return file_pkg_apis_scheduler_v2_scheduler_proto_rawDescData
 }
 
-var file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes = make([]protoimpl.MessageInfo, 37)
+var file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes = make([]protoimpl.MessageInfo, 38)
 var file_pkg_apis_scheduler_v2_scheduler_proto_goTypes = []interface{}{
 	(*RegisterPeerRequest)(nil),                      // 0: scheduler.v2.RegisterPeerRequest
 	(*RegisterSeedPeerRequest)(nil),                  // 1: scheduler.v2.RegisterSeedPeerRequest
 	(*DownloadPeerStartedRequest)(nil),               // 2: scheduler.v2.DownloadPeerStartedRequest
 	(*DownloadPeerBackToSourceStartedRequest)(nil),   // 3: scheduler.v2.DownloadPeerBackToSourceStartedRequest
-	(*DownloadPeerFinishedRequest)(nil),              // 4: scheduler.v2.DownloadPeerFinishedRequest
-	(*DownloadPeerBackToSourceFinishedRequest)(nil),  // 5: scheduler.v2.DownloadPeerBackToSourceFinishedRequest
-	(*DownloadPeerFailedRequest)(nil),                // 6: scheduler.v2.DownloadPeerFailedRequest
-	(*DownloadPeerBackToSourceFailedRequest)(nil),    // 7: scheduler.v2.DownloadPeerBackToSourceFailedRequest
-	(*DownloadPieceFinishedRequest)(nil),             // 8: scheduler.v2.DownloadPieceFinishedRequest
-	(*DownloadPieceBackToSourceFinishedRequest)(nil), // 9: scheduler.v2.DownloadPieceBackToSourceFinishedRequest
-	(*DownloadPieceFailedRequest)(nil),               // 10: scheduler.v2.DownloadPieceFailedRequest
-	(*HTTPResponse)(nil),                             // 11: scheduler.v2.HTTPResponse
-	(*HDFSResponse)(nil),                             // 12: scheduler.v2.HDFSResponse
-	(*S3Response)(nil),                               // 13: scheduler.v2.S3Response
-	(*OSSResponse)(nil),                              // 14: scheduler.v2.OSSResponse
-	(*DownloadPieceBackToSourceFailedRequest)(nil),   // 15: scheduler.v2.DownloadPieceBackToSourceFailedRequest
-	(*SyncPiecesFailedRequest)(nil),                  // 16: scheduler.v2.SyncPiecesFailedRequest
-	(*AnnouncePeerRequest)(nil),                      // 17: scheduler.v2.AnnouncePeerRequest
-	(*EmptyTaskResponse)(nil),                        // 18: scheduler.v2.EmptyTaskResponse
-	(*NormalTaskResponse)(nil),                       // 19: scheduler.v2.NormalTaskResponse
-	(*NeedBackToSourceResponse)(nil),                 // 20: scheduler.v2.NeedBackToSourceResponse
-	(*AnnouncePeerResponse)(nil),                     // 21: scheduler.v2.AnnouncePeerResponse
-	(*StatPeerRequest)(nil),                          // 22: scheduler.v2.StatPeerRequest
-	(*ExchangePeerRequest)(nil),                      // 23: scheduler.v2.ExchangePeerRequest
-	(*ExchangePeerResponse)(nil),                     // 24: scheduler.v2.ExchangePeerResponse
-	(*LeavePeerRequest)(nil),                         // 25: scheduler.v2.LeavePeerRequest
-	(*StatTaskRequest)(nil),                          // 26: scheduler.v2.StatTaskRequest
-	(*AnnounceHostRequest)(nil),                      // 27: scheduler.v2.AnnounceHostRequest
-	(*LeaveHostRequest)(nil),                         // 28: scheduler.v2.LeaveHostRequest
-	(*ProbeStartedRequest)(nil),                      // 29: scheduler.v2.ProbeStartedRequest
-	(*Probe)(nil),                                    // 30: scheduler.v2.Probe
-	(*ProbeFinishedRequest)(nil),                     // 31: scheduler.v2.ProbeFinishedRequest
-	(*FailedProbe)(nil),                              // 32: scheduler.v2.FailedProbe
-	(*ProbeFailedRequest)(nil),                       // 33: scheduler.v2.ProbeFailedRequest
-	(*SyncProbesRequest)(nil),                        // 34: scheduler.v2.SyncProbesRequest
-	(*SyncProbesResponse)(nil),                       // 35: scheduler.v2.SyncProbesResponse
-	nil,                                              // 36: scheduler.v2.HTTPResponse.HeaderEntry
-	(*v2.Download)(nil),                              // 37: common.v2.Download
-	(*v2.Piece)(nil),                                 // 38: common.v2.Piece
-	(*v2.Peer)(nil),                                  // 39: common.v2.Peer
-	(*v2.Host)(nil),                                  // 40: common.v2.Host
-	(*durationpb.Duration)(nil),                      // 41: google.protobuf.Duration
-	(*timestamppb.Timestamp)(nil),                    // 42: google.protobuf.Timestamp
-	(*emptypb.Empty)(nil),                            // 43: google.protobuf.Empty
-	(*v2.Task)(nil),                                  // 44: common.v2.Task
+	(*RescheduleRequest)(nil),                        // 4: scheduler.v2.RescheduleRequest
+	(*DownloadPeerFinishedRequest)(nil),              // 5: scheduler.v2.DownloadPeerFinishedRequest
+	(*DownloadPeerBackToSourceFinishedRequest)(nil),  // 6: scheduler.v2.DownloadPeerBackToSourceFinishedRequest
+	(*DownloadPeerFailedRequest)(nil),                // 7: scheduler.v2.DownloadPeerFailedRequest
+	(*DownloadPeerBackToSourceFailedRequest)(nil),    // 8: scheduler.v2.DownloadPeerBackToSourceFailedRequest
+	(*DownloadPieceFinishedRequest)(nil),             // 9: scheduler.v2.DownloadPieceFinishedRequest
+	(*DownloadPieceBackToSourceFinishedRequest)(nil), // 10: scheduler.v2.DownloadPieceBackToSourceFinishedRequest
+	(*DownloadPieceFailedRequest)(nil),               // 11: scheduler.v2.DownloadPieceFailedRequest
+	(*HTTPResponse)(nil),                             // 12: scheduler.v2.HTTPResponse
+	(*HDFSResponse)(nil),                             // 13: scheduler.v2.HDFSResponse
+	(*S3Response)(nil),                               // 14: scheduler.v2.S3Response
+	(*OSSResponse)(nil),                              // 15: scheduler.v2.OSSResponse
+	(*DownloadPieceBackToSourceFailedRequest)(nil),   // 16: scheduler.v2.DownloadPieceBackToSourceFailedRequest
+	(*SyncPiecesFailedRequest)(nil),                  // 17: scheduler.v2.SyncPiecesFailedRequest
+	(*AnnouncePeerRequest)(nil),                      // 18: scheduler.v2.AnnouncePeerRequest
+	(*EmptyTaskResponse)(nil),                        // 19: scheduler.v2.EmptyTaskResponse
+	(*NormalTaskResponse)(nil),                       // 20: scheduler.v2.NormalTaskResponse
+	(*NeedBackToSourceResponse)(nil),                 // 21: scheduler.v2.NeedBackToSourceResponse
+	(*AnnouncePeerResponse)(nil),                     // 22: scheduler.v2.AnnouncePeerResponse
+	(*StatPeerRequest)(nil),                          // 23: scheduler.v2.StatPeerRequest
+	(*ExchangePeerRequest)(nil),                      // 24: scheduler.v2.ExchangePeerRequest
+	(*ExchangePeerResponse)(nil),                     // 25: scheduler.v2.ExchangePeerResponse
+	(*LeavePeerRequest)(nil),                         // 26: scheduler.v2.LeavePeerRequest
+	(*StatTaskRequest)(nil),                          // 27: scheduler.v2.StatTaskRequest
+	(*AnnounceHostRequest)(nil),                      // 28: scheduler.v2.AnnounceHostRequest
+	(*LeaveHostRequest)(nil),                         // 29: scheduler.v2.LeaveHostRequest
+	(*ProbeStartedRequest)(nil),                      // 30: scheduler.v2.ProbeStartedRequest
+	(*Probe)(nil),                                    // 31: scheduler.v2.Probe
+	(*ProbeFinishedRequest)(nil),                     // 32: scheduler.v2.ProbeFinishedRequest
+	(*FailedProbe)(nil),                              // 33: scheduler.v2.FailedProbe
+	(*ProbeFailedRequest)(nil),                       // 34: scheduler.v2.ProbeFailedRequest
+	(*SyncProbesRequest)(nil),                        // 35: scheduler.v2.SyncProbesRequest
+	(*SyncProbesResponse)(nil),                       // 36: scheduler.v2.SyncProbesResponse
+	nil,                                              // 37: scheduler.v2.HTTPResponse.HeaderEntry
+	(*v2.Download)(nil),                              // 38: common.v2.Download
+	(*v2.Piece)(nil),                                 // 39: common.v2.Piece
+	(*v2.Peer)(nil),                                  // 40: common.v2.Peer
+	(*v2.Host)(nil),                                  // 41: common.v2.Host
+	(*durationpb.Duration)(nil),                      // 42: google.protobuf.Duration
+	(*timestamppb.Timestamp)(nil),                    // 43: google.protobuf.Timestamp
+	(*emptypb.Empty)(nil),                            // 44: google.protobuf.Empty
+	(*v2.Task)(nil),                                  // 45: common.v2.Task
 }
 var file_pkg_apis_scheduler_v2_scheduler_proto_depIdxs = []int32{
-	37, // 0: scheduler.v2.RegisterPeerRequest.download:type_name -> common.v2.Download
-	37, // 1: scheduler.v2.RegisterSeedPeerRequest.download:type_name -> common.v2.Download
-	38, // 2: scheduler.v2.DownloadPieceFinishedRequest.piece:type_name -> common.v2.Piece
-	38, // 3: scheduler.v2.DownloadPieceBackToSourceFinishedRequest.piece:type_name -> common.v2.Piece
-	38, // 4: scheduler.v2.DownloadPieceFailedRequest.piece:type_name -> common.v2.Piece
-	36, // 5: scheduler.v2.HTTPResponse.header:type_name -> scheduler.v2.HTTPResponse.HeaderEntry
-	38, // 6: scheduler.v2.DownloadPieceBackToSourceFailedRequest.piece:type_name -> common.v2.Piece
-	11, // 7: scheduler.v2.DownloadPieceBackToSourceFailedRequest.http_response:type_name -> scheduler.v2.HTTPResponse
-	12, // 8: scheduler.v2.DownloadPieceBackToSourceFailedRequest.hdfs_response:type_name -> scheduler.v2.HDFSResponse
-	13, // 9: scheduler.v2.DownloadPieceBackToSourceFailedRequest.s3_response:type_name -> scheduler.v2.S3Response
-	14, // 10: scheduler.v2.DownloadPieceBackToSourceFailedRequest.oss_response:type_name -> scheduler.v2.OSSResponse
+	38, // 0: scheduler.v2.RegisterPeerRequest.download:type_name -> common.v2.Download
+	38, // 1: scheduler.v2.RegisterSeedPeerRequest.download:type_name -> common.v2.Download
+	39, // 2: scheduler.v2.DownloadPieceFinishedRequest.piece:type_name -> common.v2.Piece
+	39, // 3: scheduler.v2.DownloadPieceBackToSourceFinishedRequest.piece:type_name -> common.v2.Piece
+	39, // 4: scheduler.v2.DownloadPieceFailedRequest.piece:type_name -> common.v2.Piece
+	37, // 5: scheduler.v2.HTTPResponse.header:type_name -> scheduler.v2.HTTPResponse.HeaderEntry
+	39, // 6: scheduler.v2.DownloadPieceBackToSourceFailedRequest.piece:type_name -> common.v2.Piece
+	12, // 7: scheduler.v2.DownloadPieceBackToSourceFailedRequest.http_response:type_name -> scheduler.v2.HTTPResponse
+	13, // 8: scheduler.v2.DownloadPieceBackToSourceFailedRequest.hdfs_response:type_name -> scheduler.v2.HDFSResponse
+	14, // 9: scheduler.v2.DownloadPieceBackToSourceFailedRequest.s3_response:type_name -> scheduler.v2.S3Response
+	15, // 10: scheduler.v2.DownloadPieceBackToSourceFailedRequest.oss_response:type_name -> scheduler.v2.OSSResponse
 	0,  // 11: scheduler.v2.AnnouncePeerRequest.register_peer_request:type_name -> scheduler.v2.RegisterPeerRequest
 	1,  // 12: scheduler.v2.AnnouncePeerRequest.register_seed_peer_request:type_name -> scheduler.v2.RegisterSeedPeerRequest
 	2,  // 13: scheduler.v2.AnnouncePeerRequest.download_peer_started_request:type_name -> scheduler.v2.DownloadPeerStartedRequest
 	3,  // 14: scheduler.v2.AnnouncePeerRequest.download_peer_back_to_source_started_request:type_name -> scheduler.v2.DownloadPeerBackToSourceStartedRequest
-	4,  // 15: scheduler.v2.AnnouncePeerRequest.download_peer_finished_request:type_name -> scheduler.v2.DownloadPeerFinishedRequest
-	5,  // 16: scheduler.v2.AnnouncePeerRequest.download_peer_back_to_source_finished_request:type_name -> scheduler.v2.DownloadPeerBackToSourceFinishedRequest
-	6,  // 17: scheduler.v2.AnnouncePeerRequest.download_peer_failed_request:type_name -> scheduler.v2.DownloadPeerFailedRequest
-	7,  // 18: scheduler.v2.AnnouncePeerRequest.download_peer_back_to_source_failed_request:type_name -> scheduler.v2.DownloadPeerBackToSourceFailedRequest
-	8,  // 19: scheduler.v2.AnnouncePeerRequest.download_piece_finished_request:type_name -> scheduler.v2.DownloadPieceFinishedRequest
-	9,  // 20: scheduler.v2.AnnouncePeerRequest.download_piece_back_to_source_finished_request:type_name -> scheduler.v2.DownloadPieceBackToSourceFinishedRequest
-	10, // 21: scheduler.v2.AnnouncePeerRequest.download_piece_failed_request:type_name -> scheduler.v2.DownloadPieceFailedRequest
-	15, // 22: scheduler.v2.AnnouncePeerRequest.download_piece_back_to_source_failed_request:type_name -> scheduler.v2.DownloadPieceBackToSourceFailedRequest
-	16, // 23: scheduler.v2.AnnouncePeerRequest.sync_pieces_failed_request:type_name -> scheduler.v2.SyncPiecesFailedRequest
-	39, // 24: scheduler.v2.NormalTaskResponse.candidate_parents:type_name -> common.v2.Peer
-	18, // 25: scheduler.v2.AnnouncePeerResponse.empty_task_response:type_name -> scheduler.v2.EmptyTaskResponse
-	19, // 26: scheduler.v2.AnnouncePeerResponse.normal_task_response:type_name -> scheduler.v2.NormalTaskResponse
-	20, // 27: scheduler.v2.AnnouncePeerResponse.need_back_to_source_response:type_name -> scheduler.v2.NeedBackToSourceResponse
-	40, // 28: scheduler.v2.AnnounceHostRequest.host:type_name -> common.v2.Host
-	40, // 29: scheduler.v2.Probe.host:type_name -> common.v2.Host
-	41, // 30: scheduler.v2.Probe.rtt:type_name -> google.protobuf.Duration
-	42, // 31: scheduler.v2.Probe.created_at:type_name -> google.protobuf.Timestamp
-	30, // 32: scheduler.v2.ProbeFinishedRequest.probes:type_name -> scheduler.v2.Probe
-	40, // 33: scheduler.v2.FailedProbe.host:type_name -> common.v2.Host
-	32, // 34: scheduler.v2.ProbeFailedRequest.probes:type_name -> scheduler.v2.FailedProbe
-	40, // 35: scheduler.v2.SyncProbesRequest.host:type_name -> common.v2.Host
-	29, // 36: scheduler.v2.SyncProbesRequest.probe_started_request:type_name -> scheduler.v2.ProbeStartedRequest
-	31, // 37: scheduler.v2.SyncProbesRequest.probe_finished_request:type_name -> scheduler.v2.ProbeFinishedRequest
-	33, // 38: scheduler.v2.SyncProbesRequest.probe_failed_request:type_name -> scheduler.v2.ProbeFailedRequest
-	40, // 39: scheduler.v2.SyncProbesResponse.hosts:type_name -> common.v2.Host
-	17, // 40: scheduler.v2.Scheduler.AnnouncePeer:input_type -> scheduler.v2.AnnouncePeerRequest
-	22, // 41: scheduler.v2.Scheduler.StatPeer:input_type -> scheduler.v2.StatPeerRequest
-	25, // 42: scheduler.v2.Scheduler.LeavePeer:input_type -> scheduler.v2.LeavePeerRequest
-	23, // 43: scheduler.v2.Scheduler.ExchangePeer:input_type -> scheduler.v2.ExchangePeerRequest
-	26, // 44: scheduler.v2.Scheduler.StatTask:input_type -> scheduler.v2.StatTaskRequest
-	27, // 45: scheduler.v2.Scheduler.AnnounceHost:input_type -> scheduler.v2.AnnounceHostRequest
-	28, // 46: scheduler.v2.Scheduler.LeaveHost:input_type -> scheduler.v2.LeaveHostRequest
-	34, // 47: scheduler.v2.Scheduler.SyncProbes:input_type -> scheduler.v2.SyncProbesRequest
-	21, // 48: scheduler.v2.Scheduler.AnnouncePeer:output_type -> scheduler.v2.AnnouncePeerResponse
-	39, // 49: scheduler.v2.Scheduler.StatPeer:output_type -> common.v2.Peer
-	43, // 50: scheduler.v2.Scheduler.LeavePeer:output_type -> google.protobuf.Empty
-	24, // 51: scheduler.v2.Scheduler.ExchangePeer:output_type -> scheduler.v2.ExchangePeerResponse
-	44, // 52: scheduler.v2.Scheduler.StatTask:output_type -> common.v2.Task
-	43, // 53: scheduler.v2.Scheduler.AnnounceHost:output_type -> google.protobuf.Empty
-	43, // 54: scheduler.v2.Scheduler.LeaveHost:output_type -> google.protobuf.Empty
-	35, // 55: scheduler.v2.Scheduler.SyncProbes:output_type -> scheduler.v2.SyncProbesResponse
-	48, // [48:56] is the sub-list for method output_type
-	40, // [40:48] is the sub-list for method input_type
-	40, // [40:40] is the sub-list for extension type_name
-	40, // [40:40] is the sub-list for extension extendee
-	0,  // [0:40] is the sub-list for field type_name
+	4,  // 15: scheduler.v2.AnnouncePeerRequest.reschedule_request:type_name -> scheduler.v2.RescheduleRequest
+	5,  // 16: scheduler.v2.AnnouncePeerRequest.download_peer_finished_request:type_name -> scheduler.v2.DownloadPeerFinishedRequest
+	6,  // 17: scheduler.v2.AnnouncePeerRequest.download_peer_back_to_source_finished_request:type_name -> scheduler.v2.DownloadPeerBackToSourceFinishedRequest
+	7,  // 18: scheduler.v2.AnnouncePeerRequest.download_peer_failed_request:type_name -> scheduler.v2.DownloadPeerFailedRequest
+	8,  // 19: scheduler.v2.AnnouncePeerRequest.download_peer_back_to_source_failed_request:type_name -> scheduler.v2.DownloadPeerBackToSourceFailedRequest
+	9,  // 20: scheduler.v2.AnnouncePeerRequest.download_piece_finished_request:type_name -> scheduler.v2.DownloadPieceFinishedRequest
+	10, // 21: scheduler.v2.AnnouncePeerRequest.download_piece_back_to_source_finished_request:type_name -> scheduler.v2.DownloadPieceBackToSourceFinishedRequest
+	11, // 22: scheduler.v2.AnnouncePeerRequest.download_piece_failed_request:type_name -> scheduler.v2.DownloadPieceFailedRequest
+	16, // 23: scheduler.v2.AnnouncePeerRequest.download_piece_back_to_source_failed_request:type_name -> scheduler.v2.DownloadPieceBackToSourceFailedRequest
+	17, // 24: scheduler.v2.AnnouncePeerRequest.sync_pieces_failed_request:type_name -> scheduler.v2.SyncPiecesFailedRequest
+	40, // 25: scheduler.v2.NormalTaskResponse.candidate_parents:type_name -> common.v2.Peer
+	19, // 26: scheduler.v2.AnnouncePeerResponse.empty_task_response:type_name -> scheduler.v2.EmptyTaskResponse
+	20, // 27: scheduler.v2.AnnouncePeerResponse.normal_task_response:type_name -> scheduler.v2.NormalTaskResponse
+	21, // 28: scheduler.v2.AnnouncePeerResponse.need_back_to_source_response:type_name -> scheduler.v2.NeedBackToSourceResponse
+	41, // 29: scheduler.v2.AnnounceHostRequest.host:type_name -> common.v2.Host
+	41, // 30: scheduler.v2.Probe.host:type_name -> common.v2.Host
+	42, // 31: scheduler.v2.Probe.rtt:type_name -> google.protobuf.Duration
+	43, // 32: scheduler.v2.Probe.created_at:type_name -> google.protobuf.Timestamp
+	31, // 33: scheduler.v2.ProbeFinishedRequest.probes:type_name -> scheduler.v2.Probe
+	41, // 34: scheduler.v2.FailedProbe.host:type_name -> common.v2.Host
+	33, // 35: scheduler.v2.ProbeFailedRequest.probes:type_name -> scheduler.v2.FailedProbe
+	41, // 36: scheduler.v2.SyncProbesRequest.host:type_name -> common.v2.Host
+	30, // 37: scheduler.v2.SyncProbesRequest.probe_started_request:type_name -> scheduler.v2.ProbeStartedRequest
+	32, // 38: scheduler.v2.SyncProbesRequest.probe_finished_request:type_name -> scheduler.v2.ProbeFinishedRequest
+	34, // 39: scheduler.v2.SyncProbesRequest.probe_failed_request:type_name -> scheduler.v2.ProbeFailedRequest
+	41, // 40: scheduler.v2.SyncProbesResponse.hosts:type_name -> common.v2.Host
+	18, // 41: scheduler.v2.Scheduler.AnnouncePeer:input_type -> scheduler.v2.AnnouncePeerRequest
+	23, // 42: scheduler.v2.Scheduler.StatPeer:input_type -> scheduler.v2.StatPeerRequest
+	26, // 43: scheduler.v2.Scheduler.LeavePeer:input_type -> scheduler.v2.LeavePeerRequest
+	24, // 44: scheduler.v2.Scheduler.ExchangePeer:input_type -> scheduler.v2.ExchangePeerRequest
+	27, // 45: scheduler.v2.Scheduler.StatTask:input_type -> scheduler.v2.StatTaskRequest
+	28, // 46: scheduler.v2.Scheduler.AnnounceHost:input_type -> scheduler.v2.AnnounceHostRequest
+	29, // 47: scheduler.v2.Scheduler.LeaveHost:input_type -> scheduler.v2.LeaveHostRequest
+	35, // 48: scheduler.v2.Scheduler.SyncProbes:input_type -> scheduler.v2.SyncProbesRequest
+	22, // 49: scheduler.v2.Scheduler.AnnouncePeer:output_type -> scheduler.v2.AnnouncePeerResponse
+	40, // 50: scheduler.v2.Scheduler.StatPeer:output_type -> common.v2.Peer
+	44, // 51: scheduler.v2.Scheduler.LeavePeer:output_type -> google.protobuf.Empty
+	25, // 52: scheduler.v2.Scheduler.ExchangePeer:output_type -> scheduler.v2.ExchangePeerResponse
+	45, // 53: scheduler.v2.Scheduler.StatTask:output_type -> common.v2.Task
+	44, // 54: scheduler.v2.Scheduler.AnnounceHost:output_type -> google.protobuf.Empty
+	44, // 55: scheduler.v2.Scheduler.LeaveHost:output_type -> google.protobuf.Empty
+	36, // 56: scheduler.v2.Scheduler.SyncProbes:output_type -> scheduler.v2.SyncProbesResponse
+	49, // [49:57] is the sub-list for method output_type
+	41, // [41:49] is the sub-list for method input_type
+	41, // [41:41] is the sub-list for extension type_name
+	41, // [41:41] is the sub-list for extension extendee
+	0,  // [0:41] is the sub-list for field type_name
 }
 
 func init() { file_pkg_apis_scheduler_v2_scheduler_proto_init() }
@@ -2854,7 +2937,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DownloadPeerFinishedRequest); i {
+			switch v := v.(*RescheduleRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2866,7 +2949,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DownloadPeerBackToSourceFinishedRequest); i {
+			switch v := v.(*DownloadPeerFinishedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2878,7 +2961,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DownloadPeerFailedRequest); i {
+			switch v := v.(*DownloadPeerBackToSourceFinishedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2890,7 +2973,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DownloadPeerBackToSourceFailedRequest); i {
+			switch v := v.(*DownloadPeerFailedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2902,7 +2985,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DownloadPieceFinishedRequest); i {
+			switch v := v.(*DownloadPeerBackToSourceFailedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2914,7 +2997,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DownloadPieceBackToSourceFinishedRequest); i {
+			switch v := v.(*DownloadPieceFinishedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2926,7 +3009,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DownloadPieceFailedRequest); i {
+			switch v := v.(*DownloadPieceBackToSourceFinishedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2938,7 +3021,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*HTTPResponse); i {
+			switch v := v.(*DownloadPieceFailedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2950,7 +3033,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*HDFSResponse); i {
+			switch v := v.(*HTTPResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2962,7 +3045,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*S3Response); i {
+			switch v := v.(*HDFSResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2974,7 +3057,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*OSSResponse); i {
+			switch v := v.(*S3Response); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2986,7 +3069,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DownloadPieceBackToSourceFailedRequest); i {
+			switch v := v.(*OSSResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -2998,7 +3081,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[16].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SyncPiecesFailedRequest); i {
+			switch v := v.(*DownloadPieceBackToSourceFailedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3010,7 +3093,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[17].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*AnnouncePeerRequest); i {
+			switch v := v.(*SyncPiecesFailedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3022,7 +3105,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[18].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*EmptyTaskResponse); i {
+			switch v := v.(*AnnouncePeerRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3034,7 +3117,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[19].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*NormalTaskResponse); i {
+			switch v := v.(*EmptyTaskResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3046,7 +3129,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[20].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*NeedBackToSourceResponse); i {
+			switch v := v.(*NormalTaskResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3058,7 +3141,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[21].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*AnnouncePeerResponse); i {
+			switch v := v.(*NeedBackToSourceResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3070,7 +3153,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[22].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*StatPeerRequest); i {
+			switch v := v.(*AnnouncePeerResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3082,7 +3165,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[23].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ExchangePeerRequest); i {
+			switch v := v.(*StatPeerRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3094,7 +3177,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[24].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ExchangePeerResponse); i {
+			switch v := v.(*ExchangePeerRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3106,7 +3189,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[25].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LeavePeerRequest); i {
+			switch v := v.(*ExchangePeerResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3118,7 +3201,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[26].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*StatTaskRequest); i {
+			switch v := v.(*LeavePeerRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3130,7 +3213,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[27].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*AnnounceHostRequest); i {
+			switch v := v.(*StatTaskRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3142,7 +3225,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[28].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LeaveHostRequest); i {
+			switch v := v.(*AnnounceHostRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3154,7 +3237,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[29].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ProbeStartedRequest); i {
+			switch v := v.(*LeaveHostRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3166,7 +3249,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[30].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Probe); i {
+			switch v := v.(*ProbeStartedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3178,7 +3261,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[31].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ProbeFinishedRequest); i {
+			switch v := v.(*Probe); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3190,7 +3273,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[32].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FailedProbe); i {
+			switch v := v.(*ProbeFinishedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3202,7 +3285,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[33].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ProbeFailedRequest); i {
+			switch v := v.(*FailedProbe); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3214,7 +3297,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[34].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SyncProbesRequest); i {
+			switch v := v.(*ProbeFailedRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3226,6 +3309,18 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[35].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SyncProbesRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[36].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*SyncProbesResponse); i {
 			case 0:
 				return &v.state
@@ -3238,17 +3333,23 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			}
 		}
 	}
-	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[15].OneofWrappers = []interface{}{
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[3].OneofWrappers = []interface{}{}
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[4].OneofWrappers = []interface{}{}
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[7].OneofWrappers = []interface{}{}
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[8].OneofWrappers = []interface{}{}
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[16].OneofWrappers = []interface{}{
 		(*DownloadPieceBackToSourceFailedRequest_HttpResponse)(nil),
 		(*DownloadPieceBackToSourceFailedRequest_HdfsResponse)(nil),
 		(*DownloadPieceBackToSourceFailedRequest_S3Response)(nil),
 		(*DownloadPieceBackToSourceFailedRequest_OssResponse)(nil),
 	}
-	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[17].OneofWrappers = []interface{}{
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[17].OneofWrappers = []interface{}{}
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[18].OneofWrappers = []interface{}{
 		(*AnnouncePeerRequest_RegisterPeerRequest)(nil),
 		(*AnnouncePeerRequest_RegisterSeedPeerRequest)(nil),
 		(*AnnouncePeerRequest_DownloadPeerStartedRequest)(nil),
 		(*AnnouncePeerRequest_DownloadPeerBackToSourceStartedRequest)(nil),
+		(*AnnouncePeerRequest_RescheduleRequest)(nil),
 		(*AnnouncePeerRequest_DownloadPeerFinishedRequest)(nil),
 		(*AnnouncePeerRequest_DownloadPeerBackToSourceFinishedRequest)(nil),
 		(*AnnouncePeerRequest_DownloadPeerFailedRequest)(nil),
@@ -3259,12 +3360,14 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 		(*AnnouncePeerRequest_DownloadPieceBackToSourceFailedRequest)(nil),
 		(*AnnouncePeerRequest_SyncPiecesFailedRequest)(nil),
 	}
-	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[21].OneofWrappers = []interface{}{
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[21].OneofWrappers = []interface{}{}
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[22].OneofWrappers = []interface{}{
 		(*AnnouncePeerResponse_EmptyTaskResponse)(nil),
 		(*AnnouncePeerResponse_NormalTaskResponse)(nil),
 		(*AnnouncePeerResponse_NeedBackToSourceResponse)(nil),
 	}
-	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[34].OneofWrappers = []interface{}{
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[33].OneofWrappers = []interface{}{}
+	file_pkg_apis_scheduler_v2_scheduler_proto_msgTypes[35].OneofWrappers = []interface{}{
 		(*SyncProbesRequest_ProbeStartedRequest)(nil),
 		(*SyncProbesRequest_ProbeFinishedRequest)(nil),
 		(*SyncProbesRequest_ProbeFailedRequest)(nil),
@@ -3275,7 +3378,7 @@ func file_pkg_apis_scheduler_v2_scheduler_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_pkg_apis_scheduler_v2_scheduler_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   37,
+			NumMessages:   38,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
diff --git a/pkg/apis/scheduler/v2/scheduler.pb.validate.go b/pkg/apis/scheduler/v2/scheduler.pb.validate.go
index f4770fc..658c5ca 100644
--- a/pkg/apis/scheduler/v2/scheduler.pb.validate.go
+++ b/pkg/apis/scheduler/v2/scheduler.pb.validate.go
@@ -445,15 +445,19 @@ func (m *DownloadPeerBackToSourceStartedRequest) validate(all bool) error {
 
 	var errors []error
 
-	if utf8.RuneCountInString(m.GetDescription()) < 1 {
-		err := DownloadPeerBackToSourceStartedRequestValidationError{
-			field:  "Description",
-			reason: "value length must be at least 1 runes",
-		}
-		if !all {
-			return err
+	if m.Description != nil {
+
+		if utf8.RuneCountInString(m.GetDescription()) < 1 {
+			err := DownloadPeerBackToSourceStartedRequestValidationError{
+				field:  "Description",
+				reason: "value length must be at least 1 runes",
+			}
+			if !all {
+				return err
+			}
+			errors = append(errors, err)
 		}
-		errors = append(errors, err)
+
 	}
 
 	if len(errors) > 0 {
@@ -538,6 +542,123 @@ var _ interface {
 	ErrorName() string
 } = DownloadPeerBackToSourceStartedRequestValidationError{}
 
+// Validate checks the field values on RescheduleRequest with the rules defined
+// in the proto definition for this message. If any rules are violated, the
+// first error encountered is returned, or nil if there are no violations.
+func (m *RescheduleRequest) Validate() error {
+	return m.validate(false)
+}
+
+// ValidateAll checks the field values on RescheduleRequest with the rules
+// defined in the proto definition for this message. If any rules are
+// violated, the result is a list of violation errors wrapped in
+// RescheduleRequestMultiError, or nil if none found.
+func (m *RescheduleRequest) ValidateAll() error {
+	return m.validate(true)
+}
+
+func (m *RescheduleRequest) validate(all bool) error {
+	if m == nil {
+		return nil
+	}
+
+	var errors []error
+
+	if m.Description != nil {
+
+		if utf8.RuneCountInString(m.GetDescription()) < 1 {
+			err := RescheduleRequestValidationError{
+				field:  "Description",
+				reason: "value length must be at least 1 runes",
+			}
+			if !all {
+				return err
+			}
+			errors = append(errors, err)
+		}
+
+	}
+
+	if len(errors) > 0 {
+		return RescheduleRequestMultiError(errors)
+	}
+
+	return nil
+}
+
+// RescheduleRequestMultiError is an error wrapping multiple validation errors
+// returned by RescheduleRequest.ValidateAll() if the designated constraints
+// aren't met.
+type RescheduleRequestMultiError []error
+
+// Error returns a concatenation of all the error messages it wraps.
+func (m RescheduleRequestMultiError) Error() string {
+	var msgs []string
+	for _, err := range m {
+		msgs = append(msgs, err.Error())
+	}
+	return strings.Join(msgs, "; ")
+}
+
+// AllErrors returns a list of validation violation errors.
+func (m RescheduleRequestMultiError) AllErrors() []error { return m }
+
+// RescheduleRequestValidationError is the validation error returned by
+// RescheduleRequest.Validate if the designated constraints aren't met.
+type RescheduleRequestValidationError struct {
+	field  string
+	reason string
+	cause  error
+	key    bool
+}
+
+// Field function returns field value.
+func (e RescheduleRequestValidationError) Field() string { return e.field }
+
+// Reason function returns reason value.
+func (e RescheduleRequestValidationError) Reason() string { return e.reason }
+
+// Cause function returns cause value.
+func (e RescheduleRequestValidationError) Cause() error { return e.cause }
+
+// Key function returns key value.
+func (e RescheduleRequestValidationError) Key() bool { return e.key }
+
+// ErrorName returns error name.
+func (e RescheduleRequestValidationError) ErrorName() string {
+	return "RescheduleRequestValidationError"
+}
+
+// Error satisfies the builtin error interface
+func (e RescheduleRequestValidationError) Error() string {
+	cause := ""
+	if e.cause != nil {
+		cause = fmt.Sprintf(" | caused by: %v", e.cause)
+	}
+
+	key := ""
+	if e.key {
+		key = "key for "
+	}
+
+	return fmt.Sprintf(
+		"invalid %sRescheduleRequest.%s: %s%s",
+		key,
+		e.field,
+		e.reason,
+		cause)
+}
+
+var _ error = RescheduleRequestValidationError{}
+
+var _ interface {
+	Field() string
+	Reason() string
+	Key() bool
+	Cause() error
+	ErrorName() string
+} = RescheduleRequestValidationError{}
+
 // Validate checks the field values on DownloadPeerFinishedRequest with the
 // rules defined in the proto definition for this message. If any rules are
 // violated, the first error encountered is returned, or nil if there are no violations.
@@ -813,15 +934,19 @@ func (m *DownloadPeerFailedRequest) validate(all bool) error {
 
 	var errors []error
 
-	if utf8.RuneCountInString(m.GetDescription()) < 1 {
-		err := DownloadPeerFailedRequestValidationError{
-			field:  "Description",
-			reason: "value length must be at least 1 runes",
-		}
-		if !all {
-			return err
+	if m.Description != nil {
+
+		if utf8.RuneCountInString(m.GetDescription()) < 1 {
+			err := DownloadPeerFailedRequestValidationError{
+				field:  "Description",
+				reason: "value length must be at least 1 runes",
+			}
+			if !all {
+				return err
+			}
+			errors = append(errors, err)
 		}
-		errors = append(errors, err)
+
 	}
 
 	if len(errors) > 0 {
@@ -927,15 +1052,19 @@ func (m *DownloadPeerBackToSourceFailedRequest) validate(all bool) error {
 
 	var errors []error
 
-	if utf8.RuneCountInString(m.GetDescription()) < 1 {
-		err := DownloadPeerBackToSourceFailedRequestValidationError{
-			field:  "Description",
-			reason: "value length must be at least 1 runes",
-		}
-		if !all {
-			return err
+	if m.Description != nil {
+
+		if utf8.RuneCountInString(m.GetDescription()) < 1 {
+			err := DownloadPeerBackToSourceFailedRequestValidationError{
+				field:  "Description",
+				reason: "value length must be at least 1 runes",
+			}
+			if !all {
+				return err
+			}
+			errors = append(errors, err)
 		}
-		errors = append(errors, err)
+
 	}
 
 	if len(errors) > 0 {
@@ -2236,7 +2365,20 @@ func (m *SyncPiecesFailedRequest) validate(all bool) error {
 		errors = append(errors, err)
 	}
 
-	// no validation rules for Description
+	if m.Description != nil {
+
+		if utf8.RuneCountInString(m.GetDescription()) < 1 {
+			err := SyncPiecesFailedRequestValidationError{
+				field:  "Description",
+				reason: "value length must be at least 1 runes",
+			}
+			if !all {
+				return err
+			}
+			errors = append(errors, err)
+		}
+
+	}
 
 	if len(errors) > 0 {
 		return SyncPiecesFailedRequestMultiError(errors)
@@ -2543,6 +2685,48 @@ func (m *AnnouncePeerRequest) validate(all bool) error {
 			}
 		}
 
+	case *AnnouncePeerRequest_RescheduleRequest:
+		if v == nil {
+			err := AnnouncePeerRequestValidationError{
+				field:  "Request",
+				reason: "oneof value cannot be a typed-nil",
+			}
+			if !all {
+				return err
+			}
+			errors = append(errors, err)
+		}
+		oneofRequestPresent = true
+
+		if all {
+			switch v := interface{}(m.GetRescheduleRequest()).(type) {
+			case interface{ ValidateAll() error }:
+				if err := v.ValidateAll(); err != nil {
+					errors = append(errors, AnnouncePeerRequestValidationError{
+						field:  "RescheduleRequest",
+						reason: "embedded message failed validation",
+						cause:  err,
+					})
+				}
+			case interface{ Validate() error }:
+				if err := v.Validate(); err != nil {
+					errors = append(errors, AnnouncePeerRequestValidationError{
+						field:  "RescheduleRequest",
+						reason: "embedded message failed validation",
+						cause:  err,
+					})
+				}
+			}
+		} else if v, ok := interface{}(m.GetRescheduleRequest()).(interface{ Validate() error }); ok {
+			if err := v.Validate(); err != nil {
+				return AnnouncePeerRequestValidationError{
+					field:  "RescheduleRequest",
+					reason: "embedded message failed validation",
+					cause:  err,
+				}
+			}
+		}
+
 	case *AnnouncePeerRequest_DownloadPeerFinishedRequest:
 		if v == nil {
 			err := AnnouncePeerRequestValidationError{
@@ -3297,15 +3481,19 @@ func (m *NeedBackToSourceResponse) validate(all bool) error {
 
 	var errors []error
 
-	if utf8.RuneCountInString(m.GetDescription()) < 1 {
-		err := NeedBackToSourceResponseValidationError{
-			field:  "Description",
-			reason: "value length must be at least 1 runes",
-		}
-		if !all {
-			return err
+	if m.Description != nil {
+
+		if utf8.RuneCountInString(m.GetDescription()) < 1 {
+			err := NeedBackToSourceResponseValidationError{
+				field:  "Description",
+				reason: "value length must be at least 1 runes",
+			}
+			if !all {
+				return err
+			}
+			errors = append(errors, err)
 		}
-		errors = append(errors, err)
+
 	}
 
 	if len(errors) > 0 {
@@ -4970,15 +5158,19 @@ func (m *FailedProbe) validate(all bool) error {
 		}
 	}
 
-	if utf8.RuneCountInString(m.GetDescription()) < 1 {
-		err := FailedProbeValidationError{
-			field:  "Description",
-			reason: "value length must be at least 1 runes",
-		}
-		if !all {
-			return err
+	if m.Description != nil {
+
+		if utf8.RuneCountInString(m.GetDescription()) < 1 {
+			err := FailedProbeValidationError{
+				field:  "Description",
+				reason: "value length must be at least 1 runes",
+			}
+			if !all {
+				return err
+			}
+			errors = append(errors, err)
 		}
-		errors = append(errors, err)
+
 	}
 
 	if len(errors) > 0 {
diff --git a/pkg/apis/scheduler/v2/scheduler.proto b/pkg/apis/scheduler/v2/scheduler.proto
index a2d7cb7..23ec46b 100644
--- a/pkg/apis/scheduler/v2/scheduler.proto
+++ b/pkg/apis/scheduler/v2/scheduler.proto
@@ -45,7 +45,13 @@ message DownloadPeerStartedRequest {
 // DownloadPeerBackToSourceStartedRequest represents peer download back-to-source started request of AnnouncePeerRequest.
 message DownloadPeerBackToSourceStartedRequest {
   // The description of the back-to-source reason.
-  string description = 1 [(validate.rules).string.min_len = 1];
+  optional string description = 1 [(validate.rules).string.min_len = 1];
+}
+
+// RescheduleRequest represents reschedule request of AnnouncePeerRequest.
+message RescheduleRequest {
+  // The description of the reschedule reason.
+  optional string description = 1 [(validate.rules).string.min_len = 1];
 }
 
 // DownloadPeerFinishedRequest represents peer download finished request of AnnouncePeerRequest.
@@ -67,13 +73,13 @@ message DownloadPeerBackToSourceFinishedRequest {
 // DownloadPeerFailedRequest represents peer download failed request of AnnouncePeerRequest.
 message DownloadPeerFailedRequest {
   // The description of the download failed.
-  string description = 1 [(validate.rules).string.min_len = 1];
+  optional string description = 1 [(validate.rules).string.min_len = 1];
 }
 
 // DownloadPeerBackToSourceFailedRequest represents peer download back-to-source failed request of AnnouncePeerRequest.
 message DownloadPeerBackToSourceFailedRequest {
   // The description of the download back-to-source failed.
-  string description = 1 [(validate.rules).string.min_len = 1];
+  optional string description = 1 [(validate.rules).string.min_len = 1];
 }
 
 // DownloadPieceFinishedRequest represents piece download finished request of AnnouncePeerRequest.
@@ -138,7 +144,7 @@ message SyncPiecesFailedRequest {
 	// Parent peer id.
   string parent_id = 1 [(validate.rules).string.min_len = 1];
   // The description of the error.
-  string description = 2;
+  optional string description = 2 [(validate.rules).string.min_len = 1];
 }
 
 // AnnouncePeerRequest represents request of AnnouncePeer.
@@ -157,15 +163,16 @@ message AnnouncePeerRequest {
     RegisterSeedPeerRequest register_seed_peer_request = 5;
     DownloadPeerStartedRequest download_peer_started_request = 6;
     DownloadPeerBackToSourceStartedRequest download_peer_back_to_source_started_request = 7;
-    DownloadPeerFinishedRequest download_peer_finished_request = 8;
-    DownloadPeerBackToSourceFinishedRequest download_peer_back_to_source_finished_request = 9;
-    DownloadPeerFailedRequest download_peer_failed_request = 10;
-    DownloadPeerBackToSourceFailedRequest download_peer_back_to_source_failed_request = 11;
-    DownloadPieceFinishedRequest download_piece_finished_request = 12;
-    DownloadPieceBackToSourceFinishedRequest download_piece_back_to_source_finished_request = 13;
-    DownloadPieceFailedRequest download_piece_failed_request = 14;
-    DownloadPieceBackToSourceFailedRequest download_piece_back_to_source_failed_request = 15;
-    SyncPiecesFailedRequest sync_pieces_failed_request = 16;
+    RescheduleRequest reschedule_request = 8;
+    DownloadPeerFinishedRequest download_peer_finished_request = 9;
+    DownloadPeerBackToSourceFinishedRequest download_peer_back_to_source_finished_request = 10;
+    DownloadPeerFailedRequest download_peer_failed_request = 11;
+    DownloadPeerBackToSourceFailedRequest download_peer_back_to_source_failed_request = 12;
+    DownloadPieceFinishedRequest download_piece_finished_request = 13;
+    DownloadPieceBackToSourceFinishedRequest download_piece_back_to_source_finished_request = 14;
+    DownloadPieceFailedRequest download_piece_failed_request = 15;
+    DownloadPieceBackToSourceFailedRequest download_piece_back_to_source_failed_request = 16;
+    SyncPiecesFailedRequest sync_pieces_failed_request = 17;
   }
 }
 
@@ -184,7 +191,7 @@ message NormalTaskResponse {
 // NeedBackToSourceResponse represents need back-to-source response of AnnouncePeerResponse.
 message NeedBackToSourceResponse {
   // The description of the back-to-source reason.
-  string description = 1 [(validate.rules).string.min_len = 1];
+  optional string description = 1 [(validate.rules).string.min_len = 1];
 }
 
 // AnnouncePeerResponse represents response of AnnouncePeer.
@@ -277,7 +284,7 @@ message FailedProbe {
   // Destination host metadata.
   common.v2.Host host = 1 [(validate.rules).message.required = true];
   // The description of probing failed.
-  string description = 2 [(validate.rules).string.min_len = 1];
+  optional string description = 2 [(validate.rules).string.min_len = 1];
 }
 
 // ProbeFailedRequest represents failed request of SyncProbesRequest.
diff --git a/proto/scheduler.proto b/proto/scheduler.proto
index 7cc1b0b..0924e9e 100644
--- a/proto/scheduler.proto
+++ b/proto/scheduler.proto
@@ -42,7 +42,13 @@ message DownloadPeerStartedRequest {
 // DownloadPeerBackToSourceStartedRequest represents peer download back-to-source started request of AnnouncePeerRequest.
 message DownloadPeerBackToSourceStartedRequest {
   // The description of the back-to-source reason.
-  string description = 1;
+  optional string description = 1;
+}
+
+// RescheduleRequest represents reschedule request of AnnouncePeerRequest.
+message RescheduleRequest {
+  // The description of the reschedule reason.
+  optional string description = 1;
 }
 
 // DownloadPeerFinishedRequest represents peer download finished request of AnnouncePeerRequest.
@@ -64,13 +70,13 @@ message DownloadPeerBackToSourceFinishedRequest {
 // DownloadPeerFailedRequest represents peer download failed request of AnnouncePeerRequest.
 message DownloadPeerFailedRequest {
   // The description of the download failed.
-  string description = 1;
+  optional string description = 1;
 }
 
 // DownloadPeerBackToSourceFailedRequest represents peer download back-to-source failed request of AnnouncePeerRequest.
 message DownloadPeerBackToSourceFailedRequest {
   // The description of the download back-to-source failed.
-  string description = 1;
+  optional string description = 1;
 }
 
 // DownloadPieceFinishedRequest represents piece download finished request of AnnouncePeerRequest.
@@ -133,7 +139,7 @@ message SyncPiecesFailedRequest {
 	// Parent peer id.
   string parent_id = 1;
   // The description of the error.
-  string description = 2;
+  optional string description = 2;
 }
 
 // AnnouncePeerRequest represents request of AnnouncePeer.
@@ -150,15 +156,16 @@ message AnnouncePeerRequest {
     RegisterSeedPeerRequest register_seed_peer_request = 5;
     DownloadPeerStartedRequest download_peer_started_request = 6;
     DownloadPeerBackToSourceStartedRequest download_peer_back_to_source_started_request = 7;
-    DownloadPeerFinishedRequest download_peer_finished_request = 8;
-    DownloadPeerBackToSourceFinishedRequest download_peer_back_to_source_finished_request = 9;
-    DownloadPeerFailedRequest download_peer_failed_request = 10;
-    DownloadPeerBackToSourceFailedRequest download_peer_back_to_source_failed_request = 11;
-    DownloadPieceFinishedRequest download_piece_finished_request = 12;
-    DownloadPieceBackToSourceFinishedRequest download_piece_back_to_source_finished_request = 13;
-    DownloadPieceFailedRequest download_piece_failed_request = 14;
-    DownloadPieceBackToSourceFailedRequest download_piece_back_to_source_failed_request = 15;
-    SyncPiecesFailedRequest sync_pieces_failed_request = 16;
+    RescheduleRequest reschedule_request = 8;
+    DownloadPeerFinishedRequest download_peer_finished_request = 9;
+    DownloadPeerBackToSourceFinishedRequest download_peer_back_to_source_finished_request = 10;
+    DownloadPeerFailedRequest download_peer_failed_request = 11;
+    DownloadPeerBackToSourceFailedRequest download_peer_back_to_source_failed_request = 12;
+    DownloadPieceFinishedRequest download_piece_finished_request = 13;
+    DownloadPieceBackToSourceFinishedRequest download_piece_back_to_source_finished_request = 14;
+    DownloadPieceFailedRequest download_piece_failed_request = 15;
+    DownloadPieceBackToSourceFailedRequest download_piece_back_to_source_failed_request = 16;
+    SyncPiecesFailedRequest sync_pieces_failed_request = 17;
   }
 }
 
@@ -177,7 +184,7 @@ message NormalTaskResponse {
 // NeedBackToSourceResponse represents need back-to-source response of AnnouncePeerResponse.
 message NeedBackToSourceResponse {
   // The description of the back-to-source reason.
-  string description = 1;
+  optional string description = 1;
 }
 
 // AnnouncePeerResponse represents response of AnnouncePeer.
@@ -268,7 +275,7 @@ message FailedProbe {
   // Destination host metadata.
   common.v2.Host host = 1;
   // The description of probing failed.
-  string description = 2;
+  optional string description = 2;
 }
 
 // ProbeFailedRequest represents failed request of SyncProbesRequest.
diff --git a/src/descriptor.bin b/src/descriptor.bin
index 9960f8f..b00f646 100644
Binary files a/src/descriptor.bin and b/src/descriptor.bin differ
diff --git a/src/scheduler.v2.rs b/src/scheduler.v2.rs
index f27e1a2..3419f49 100644
--- a/src/scheduler.v2.rs
+++ b/src/scheduler.v2.rs
@@ -27,8 +27,17 @@ pub struct DownloadPeerStartedRequest {}
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct DownloadPeerBackToSourceStartedRequest {
     /// The description of the back-to-source reason.
-    #[prost(string, tag = "1")]
-    pub description: ::prost::alloc::string::String,
+    #[prost(string, optional, tag = "1")]
+    pub description: ::core::option::Option<::prost::alloc::string::String>,
+}
+/// RescheduleRequest represents reschedule request of AnnouncePeerRequest.
+#[derive(serde::Serialize, serde::Deserialize)]
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct RescheduleRequest {
+    /// The description of the reschedule reason.
+    #[prost(string, optional, tag = "1")]
+    pub description: ::core::option::Option<::prost::alloc::string::String>,
 }
 /// DownloadPeerFinishedRequest represents peer download finished request of AnnouncePeerRequest.
 #[derive(serde::Serialize, serde::Deserialize)]
@@ -60,8 +69,8 @@ pub struct DownloadPeerBackToSourceFinishedRequest {
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct DownloadPeerFailedRequest {
     /// The description of the download failed.
-    #[prost(string, tag = "1")]
-    pub description: ::prost::alloc::string::String,
+    #[prost(string, optional, tag = "1")]
+    pub description: ::core::option::Option<::prost::alloc::string::String>,
 }
 /// DownloadPeerBackToSourceFailedRequest represents peer download back-to-source failed request of AnnouncePeerRequest.
 #[derive(serde::Serialize, serde::Deserialize)]
@@ -69,8 +78,8 @@ pub struct DownloadPeerFailedRequest {
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct DownloadPeerBackToSourceFailedRequest {
     /// The description of the download back-to-source failed.
-    #[prost(string, tag = "1")]
-    pub description: ::prost::alloc::string::String,
+    #[prost(string, optional, tag = "1")]
+    pub description: ::core::option::Option<::prost::alloc::string::String>,
 }
 /// DownloadPieceFinishedRequest represents piece download finished request of AnnouncePeerRequest.
 #[derive(serde::Serialize, serde::Deserialize)]
@@ -176,8 +185,8 @@ pub struct SyncPiecesFailedRequest {
     #[prost(string, tag = "1")]
     pub parent_id: ::prost::alloc::string::String,
     /// The description of the error.
-    #[prost(string, tag = "2")]
-    pub description: ::prost::alloc::string::String,
+    #[prost(string, optional, tag = "2")]
+    pub description: ::core::option::Option<::prost::alloc::string::String>,
 }
 /// AnnouncePeerRequest represents request of AnnouncePeer.
 #[derive(serde::Serialize, serde::Deserialize)]
@@ -195,7 +204,7 @@ pub struct AnnouncePeerRequest {
     pub peer_id: ::prost::alloc::string::String,
     #[prost(
         oneof = "announce_peer_request::Request",
-        tags = "4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16"
+        tags = "4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17"
     )]
     pub request: ::core::option::Option<announce_peer_request::Request>,
 }
@@ -216,30 +225,32 @@ pub mod announce_peer_request {
             super::DownloadPeerBackToSourceStartedRequest,
         ),
         #[prost(message, tag = "8")]
-        DownloadPeerFinishedRequest(super::DownloadPeerFinishedRequest),
+        RescheduleRequest(super::RescheduleRequest),
         #[prost(message, tag = "9")]
+        DownloadPeerFinishedRequest(super::DownloadPeerFinishedRequest),
+        #[prost(message, tag = "10")]
         DownloadPeerBackToSourceFinishedRequest(
             super::DownloadPeerBackToSourceFinishedRequest,
         ),
-        #[prost(message, tag = "10")]
-        DownloadPeerFailedRequest(super::DownloadPeerFailedRequest),
         #[prost(message, tag = "11")]
+        DownloadPeerFailedRequest(super::DownloadPeerFailedRequest),
+        #[prost(message, tag = "12")]
         DownloadPeerBackToSourceFailedRequest(
             super::DownloadPeerBackToSourceFailedRequest,
         ),
-        #[prost(message, tag = "12")]
-        DownloadPieceFinishedRequest(super::DownloadPieceFinishedRequest),
         #[prost(message, tag = "13")]
+        DownloadPieceFinishedRequest(super::DownloadPieceFinishedRequest),
+        #[prost(message, tag = "14")]
         DownloadPieceBackToSourceFinishedRequest(
             super::DownloadPieceBackToSourceFinishedRequest,
         ),
-        #[prost(message, tag = "14")]
-        DownloadPieceFailedRequest(super::DownloadPieceFailedRequest),
         #[prost(message, tag = "15")]
+        DownloadPieceFailedRequest(super::DownloadPieceFailedRequest),
+        #[prost(message, tag = "16")]
         DownloadPieceBackToSourceFailedRequest(
             super::DownloadPieceBackToSourceFailedRequest,
         ),
-        #[prost(message, tag = "16")]
+        #[prost(message, tag = "17")]
         SyncPiecesFailedRequest(super::SyncPiecesFailedRequest),
     }
 }
@@ -266,8 +277,8 @@ pub struct NormalTaskResponse {
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct NeedBackToSourceResponse {
     /// The description of the back-to-source reason.
-    #[prost(string, tag = "1")]
-    pub description: ::prost::alloc::string::String,
+    #[prost(string, optional, tag = "1")]
+    pub description: ::core::option::Option<::prost::alloc::string::String>,
 }
 /// AnnouncePeerResponse represents response of AnnouncePeer.
 #[derive(serde::Serialize, serde::Deserialize)]
@@ -408,8 +419,8 @@ pub struct FailedProbe {
     #[prost(message, optional, tag = "1")]
     pub host: ::core::option::Option<super::super::common::v2::Host>,
     /// The description of probing failed.
-    #[prost(string, tag = "2")]
-    pub description: ::prost::alloc::string::String,
+    #[prost(string, optional, tag = "2")]
+    pub description: ::core::option::Option<::prost::alloc::string::String>,
 }
 /// ProbeFailedRequest represents failed request of SyncProbesRequest.
 #[derive(serde::Serialize, serde::Deserialize)]