diff --git a/manager/types/scheduler_cluster.go b/manager/types/scheduler_cluster.go
index f21cd2d1c..12dfd3b4c 100644
--- a/manager/types/scheduler_cluster.go
+++ b/manager/types/scheduler_cluster.go
@@ -55,7 +55,7 @@ type GetSchedulerClustersQuery struct {
 
 type SchedulerClusterConfig struct {
 	FilterParentLimit      uint32 `yaml:"filterParentLimit" mapstructure:"filterParentLimit" json:"filter_parent_limit" binding:"omitempty,gte=1,lte=100"`
-	FilterParentRangeLimit uint32 `yaml:"filterParentRangeLimit" mapstructure:"filterParentRangeLimit" json:"filter_parent_range_limit" binding:"omitempty,gte=1,lte=1000"`
+	FilterParentRangeLimit uint32 `yaml:"filterParentRangeLimit" mapstructure:"filterParentRangeLimit" json:"filter_parent_range_limit" binding:"omitempty,gte=10,lte=1000"`
 }
 
 type SchedulerClusterClientConfig struct {
diff --git a/scheduler/rpcserver/rpcserver.go b/scheduler/rpcserver/rpcserver.go
index 267d4805b..d3c15d5c0 100644
--- a/scheduler/rpcserver/rpcserver.go
+++ b/scheduler/rpcserver/rpcserver.go
@@ -44,7 +44,7 @@ func New(service *service.Service, opts ...grpc.ServerOption) *grpc.Server {
 
 // RegisterPeerTask registers peer and triggers seed peer download task.
 func (s *Server) RegisterPeerTask(ctx context.Context, req *schedulerv1.PeerTaskRequest) (*schedulerv1.RegisterResult, error) {
-	// FIXME: Scheudler will not generate task id.
+	// FIXME Scheudler will not generate task id.
 	if req.TaskId == "" {
 		req.TaskId = idgen.TaskID(req.Url, req.UrlMeta)
 	}
diff --git a/scheduler/service/service.go b/scheduler/service/service.go
index f41ec758e..31640c4eb 100644
--- a/scheduler/service/service.go
+++ b/scheduler/service/service.go
@@ -571,7 +571,8 @@ func (s *Service) registerTask(ctx context.Context, req *schedulerv1.PeerTaskReq
 		return task, true, nil
 	}
 
-	// Start trigger seed peer task.
+	// FIXME Need to add the condition that the seed peer grpc client is
+	// available and can be triggered back-to-source.
 	if s.config.SeedPeer.Enable {
 		if task.IsSeedPeerFailed() {
 			return task, true, nil