*: unify the usage of independent service

pkg/utils/apiutil/serverapi/middleware.go

@@ -129,7 +129,7 @@ func (h *redirector) matchMicroServiceRedirectRules(r *http.Request) (bool, stri
 	for _, rule := range h.microserviceRedirectRules {
 		// Now we only support checking the scheduling service whether it is independent
 		if rule.targetServiceName == mcsutils.SchedulingServiceName {
-			if !h.s.IsServiceIndependent(mcsutils.SchedulingServiceName) {
+			if !h.s.GetRaftCluster().IsServiceIndependent(mcsutils.SchedulingServiceName) {
 				continue
 			}
 		}

server/api/admin.go

@@ -61,11 +61,14 @@
 		return
 	}
 	rc.RemoveRegionIfExist(regionID)
-	if h.svr.IsServiceIndependent(utils.SchedulingServiceName) {
+	msg := "The region is removed from server cache."
+	if rc.IsServiceIndependent(utils.SchedulingServiceName) {
 		err = h.deleteRegionCacheInSchedulingServer(regionID)
+		if err != nil {
+			msg = buildMsg(err)
+		}
 	}
-	msg := "The region is removed from server cache."
-	h.rd.JSON(w, http.StatusOK, h.buildMsg(msg, err))
+	h.rd.JSON(w, http.StatusOK, msg)
 }
 
 // @Tags     admin
@@ -101,11 +104,15 @@
 	}
 	// Remove region from cache.
 	rc.RemoveRegionIfExist(regionID)
-	if h.svr.IsServiceIndependent(utils.SchedulingServiceName) {
+	msg := "The region is removed from server cache and region meta storage."
+	if rc.IsServiceIndependent(utils.SchedulingServiceName) {
 		err = h.deleteRegionCacheInSchedulingServer(regionID)
+		if err != nil {
+			msg = buildMsg(err)
+		}
 	}
-	msg := "The region is removed from server cache and region meta storage."
-	h.rd.JSON(w, http.StatusOK, h.buildMsg(msg, err))
+
+	h.rd.JSON(w, http.StatusOK, msg)
 }
 
 // @Tags     admin
@@ -117,11 +124,15 @@
 	var err error
 	rc := getCluster(r)
 	rc.ResetRegionCache()
-	if h.svr.IsServiceIndependent(utils.SchedulingServiceName) {
+	msg := "All regions are removed from server cache."
+	if rc.IsServiceIndependent(utils.SchedulingServiceName) {
 		err = h.deleteRegionCacheInSchedulingServer()
+		if err != nil {
+			msg = buildMsg(err)
+		}
 	}
-	msg := "All regions are removed from server cache."
-	h.rd.JSON(w, http.StatusOK, h.buildMsg(msg, err))
+
+	h.rd.JSON(w, http.StatusOK, msg)
 }
 
 // Intentionally no swagger mark as it is supposed to be only used in
@@ -240,9 +251,6 @@
 	return nil
 }
 
-func (h *adminHandler) buildMsg(msg string, err error) string {
-	if h.svr.IsServiceIndependent(utils.SchedulingServiceName) && err != nil {
-		return fmt.Sprintf("This operation was executed in API server but needs to be re-executed on scheduling server due to the following error: %s", err.Error())
-	}
-	return msg
+func buildMsg(err error) string {
+	return fmt.Sprintf("This operation was executed in API server but needs to be re-executed on scheduling server due to the following error: %s", err.Error())
 }

server/api/config.go

@@ -62,7 +62,7 @@ func newConfHandler(svr *server.Server, rd *render.Render) *confHandler {
 // @Router   /config [get]
 func (h *confHandler) GetConfig(w http.ResponseWriter, r *http.Request) {
 	cfg := h.svr.GetConfig()
-	if h.svr.IsServiceIndependent(utils.SchedulingServiceName) &&
+	if h.svr.GetRaftCluster().IsServiceIndependent(utils.SchedulingServiceName) &&
 		r.Header.Get(apiutil.XForbiddenForwardToMicroServiceHeader) != "true" {
 		schedulingServerConfig, err := h.getSchedulingServerConfig()
 		if err != nil {
@@ -336,7 +336,7 @@ func getConfigMap(cfg map[string]any, key []string, value any) map[string]any {
 // @Success  200  {object}  sc.ScheduleConfig
 // @Router   /config/schedule [get]
 func (h *confHandler) GetScheduleConfig(w http.ResponseWriter, r *http.Request) {
-	if h.svr.IsServiceIndependent(utils.SchedulingServiceName) &&
+	if h.svr.GetRaftCluster().IsServiceIndependent(utils.SchedulingServiceName) &&
 		r.Header.Get(apiutil.XForbiddenForwardToMicroServiceHeader) != "true" {
 		cfg, err := h.getSchedulingServerConfig()
 		if err != nil {
@@ -410,7 +410,7 @@ func (h *confHandler) SetScheduleConfig(w http.ResponseWriter, r *http.Request)
 // @Success  200  {object}  sc.ReplicationConfig
 // @Router   /config/replicate [get]
 func (h *confHandler) GetReplicationConfig(w http.ResponseWriter, r *http.Request) {
-	if h.svr.IsServiceIndependent(utils.SchedulingServiceName) &&
+	if h.svr.GetRaftCluster().IsServiceIndependent(utils.SchedulingServiceName) &&
 		r.Header.Get(apiutil.XForbiddenForwardToMicroServiceHeader) != "true" {
 		cfg, err := h.getSchedulingServerConfig()
 		if err != nil {

server/cluster/cluster.go

@@ -375,18 +375,18 @@
 		servers, err := discovery.Discover(c.etcdClient, strconv.FormatUint(c.clusterID, 10), mcsutils.SchedulingServiceName)
 		if c.opt.GetMicroServiceConfig().IsSchedulingFallbackEnabled() && (err != nil || len(servers) == 0) {
 			c.startSchedulingJobs(c, c.hbstreams)
-			c.independentServices.Delete(mcsutils.SchedulingServiceName)
+			c.UnsetServiceIndependent(mcsutils.SchedulingServiceName)
 		} else {
 			if c.stopSchedulingJobs() || c.coordinator == nil {
 				c.initCoordinator(c.ctx, c, c.hbstreams)
 			}
 			if !c.IsServiceIndependent(mcsutils.SchedulingServiceName) {
-				c.independentServices.Store(mcsutils.SchedulingServiceName, true)
+				c.SetServiceIndependent(mcsutils.SchedulingServiceName)
 			}
 		}
 	} else {
 		c.startSchedulingJobs(c, c.hbstreams)
-		c.independentServices.Delete(mcsutils.SchedulingServiceName)
+		c.UnsetServiceIndependent(mcsutils.SchedulingServiceName)
 	}
 }
 
@@ -2439,9 +2439,25 @@
 
 // IsServiceIndependent returns whether the service is independent.
 func (c *RaftCluster) IsServiceIndependent(name string) bool {
-	independent, exist := c.independentServices.Load(name)
-	if !exist {
+	if c == nil {
 		return false
 	}
-	return independent.(bool)
+	_, exist := c.independentServices.Load(name)
+	return exist
+}
+
+// SetServiceIndependent sets the service to be independent.
+func (c *RaftCluster) SetServiceIndependent(name string) {
+	if c == nil {
+		return
+	}
+	c.independentServices.Store(name, struct{}{})
+}
+
+// UnsetServiceIndependent unsets the service to be independent.
+func (c *RaftCluster) UnsetServiceIndependent(name string) {
+	if c == nil {
+		return
+	}
+	c.independentServices.Delete(name)
 }

server/grpc_service.go

@@ -951,7 +951,7 @@
 
 		s.handleDamagedStore(request.GetStats())
 		storeHeartbeatHandleDuration.WithLabelValues(storeAddress, storeLabel).Observe(time.Since(start).Seconds())
-		if s.IsServiceIndependent(utils.SchedulingServiceName) {
+		if rc.IsServiceIndependent(utils.SchedulingServiceName) {
 			forwardCli, _ := s.updateSchedulingClient(ctx)
 			cli := forwardCli.getClient()
 			if cli != nil {
@@ -1307,7 +1307,7 @@
 		regionHeartbeatHandleDuration.WithLabelValues(storeAddress, storeLabel).Observe(time.Since(start).Seconds())
 		regionHeartbeatCounter.WithLabelValues(storeAddress, storeLabel, "report", "ok").Inc()
 
-		if s.IsServiceIndependent(utils.SchedulingServiceName) {
+		if rc.IsServiceIndependent(utils.SchedulingServiceName) {
 			if forwardErrCh != nil {
 				select {
 				case err, ok := <-forwardErrCh:
@@ -1786,7 +1786,13 @@
 			}, nil
 		}
 	}
-	if s.IsServiceIndependent(utils.SchedulingServiceName) {
+
+	rc := s.GetRaftCluster()
+	if rc == nil {
+		return &pdpb.AskBatchSplitResponse{Header: s.notBootstrappedHeader()}, nil
+	}
+
+	if rc.IsServiceIndependent(utils.SchedulingServiceName) {
 		forwardCli, err := s.updateSchedulingClient(ctx)
 		if err != nil {
 			return &pdpb.AskBatchSplitResponse{
@@ -1821,11 +1827,6 @@
 		return rsp.(*pdpb.AskBatchSplitResponse), err
 	}
 
-	rc := s.GetRaftCluster()
-	if rc == nil {
-		return &pdpb.AskBatchSplitResponse{Header: s.notBootstrappedHeader()}, nil
-	}
-
 	if !versioninfo.IsFeatureSupported(rc.GetOpts().GetClusterVersion(), versioninfo.BatchSplit) {
 		return &pdpb.AskBatchSplitResponse{Header: s.incompatibleVersion("batch_split")}, nil
 	}
@@ -2015,7 +2016,13 @@
 			}, nil
 		}
 	}
-	if s.IsServiceIndependent(utils.SchedulingServiceName) {
+
+	rc := s.GetRaftCluster()
+	if rc == nil {
+		return &pdpb.ScatterRegionResponse{Header: s.notBootstrappedHeader()}, nil
+	}
+
+	if rc.IsServiceIndependent(utils.SchedulingServiceName) {
 		forwardCli, err := s.updateSchedulingClient(ctx)
 		if err != nil {
 			return &pdpb.ScatterRegionResponse{
@@ -2067,11 +2074,6 @@
 		return rsp.(*pdpb.ScatterRegionResponse), err
 	}
 
-	rc := s.GetRaftCluster()
-	if rc == nil {
-		return &pdpb.ScatterRegionResponse{Header: s.notBootstrappedHeader()}, nil
-	}
-
 	if len(request.GetRegionsId()) > 0 {
 		percentage, err := scatterRegions(rc, request.GetRegionsId(), request.GetGroup(), int(request.GetRetryLimit()), request.GetSkipStoreLimit())
 		if err != nil {
@@ -2292,7 +2294,13 @@
 			}, nil
 		}
 	}
-	if s.IsServiceIndependent(utils.SchedulingServiceName) {
+
+	rc := s.GetRaftCluster()
+	if rc == nil {
+		return &pdpb.GetOperatorResponse{Header: s.notBootstrappedHeader()}, nil
+	}
+
+	if rc.IsServiceIndependent(utils.SchedulingServiceName) {
 		forwardCli, err := s.updateSchedulingClient(ctx)
 		if err != nil {
 			return &pdpb.GetOperatorResponse{
@@ -2327,11 +2335,6 @@
 		return rsp.(*pdpb.GetOperatorResponse), err
 	}
 
-	rc := s.GetRaftCluster()
-	if rc == nil {
-		return &pdpb.GetOperatorResponse{Header: s.notBootstrappedHeader()}, nil
-	}
-
 	opController := rc.GetOperatorController()
 	requestID := request.GetRegionId()
 	r := opController.GetOperatorStatus(requestID)
@@ -2611,7 +2614,13 @@
 			}, nil
 		}
 	}
-	if s.IsServiceIndependent(utils.SchedulingServiceName) {
+
+	rc := s.GetRaftCluster()
+	if rc == nil {
+		return &pdpb.SplitRegionsResponse{Header: s.notBootstrappedHeader()}, nil
+	}
+
+	if rc.IsServiceIndependent(utils.SchedulingServiceName) {
 		forwardCli, err := s.updateSchedulingClient(ctx)
 		if err != nil {
 			return &pdpb.SplitRegionsResponse{
@@ -2648,10 +2657,6 @@
 		return rsp.(*pdpb.SplitRegionsResponse), err
 	}
 
-	rc := s.GetRaftCluster()
-	if rc == nil {
-		return &pdpb.SplitRegionsResponse{Header: s.notBootstrappedHeader()}, nil
-	}
 	finishedPercentage, newRegionIDs := rc.GetRegionSplitter().SplitRegions(ctx, request.GetSplitKeys(), int(request.GetRetryLimit()))
 	return &pdpb.SplitRegionsResponse{
 		Header:             s.header(),

server/server.go

@@ -1465,15 +1465,6 @@ func (s *Server) GetRegions() []*core.RegionInfo {
 	return nil
 }
 
-// IsServiceIndependent returns if the service is enabled
-func (s *Server) IsServiceIndependent(name string) bool {
-	rc := s.GetRaftCluster()
-	if rc != nil {
-		return rc.IsServiceIndependent(name)
-	}
-	return false
-}
-
 // GetServiceLabels returns ApiAccessPaths by given service label
 // TODO: this function will be used for updating api rate limit config
 func (s *Server) GetServiceLabels(serviceLabel string) []apiutil.AccessPath {