This is an automated cherry-pick of tikv#8632

close tikv#8619

Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>

pkg/schedule/schedulers/evict_leader.go

@@ -143,7 +143,25 @@ func (conf *evictLeaderSchedulerConfig) removeStore(id uint64) (succ bool, last
 		succ = true
 		last = len(conf.StoreIDWithRanges) == 0
 	}
+<<<<<<< HEAD
 	return succ, last
+=======
+	return false, errs.ErrScheduleConfigNotExist.FastGenByArgs()
+}
+
+func (conf *evictLeaderSchedulerConfig) removeStore(id uint64) {
+	conf.Lock()
+	defer conf.Unlock()
+	// if the store is not existed, no need to resume leader transfer
+	_, _ = conf.removeStoreLocked(id)
+}
+
+func (conf *evictLeaderSchedulerConfig) resetStoreLocked(id uint64, keyRange []core.KeyRange) {
+	if err := conf.cluster.PauseLeaderTransfer(id); err != nil {
+		log.Error("pause leader transfer failed", zap.Uint64("store-id", id), errs.ZapError(err))
+	}
+	conf.StoreIDWithRanges[id] = keyRange
+>>>>>>> 6b927e117 (*: reset config if the input is invalid  (#8632))
 }
 
 func (conf *evictLeaderSchedulerConfig) resetStore(id uint64, keyRange []core.KeyRange) {
@@ -345,6 +363,7 @@ func (handler *evictLeaderHandler) UpdateConfig(w http.ResponseWriter, r *http.R
 	var id uint64
 	idFloat, ok := input["store_id"].(float64)
 	if ok {
+<<<<<<< HEAD
 		id = (uint64)(idFloat)
 		handler.config.mu.RLock()
 		if _, exists = handler.config.StoreIDWithRanges[id]; !exists {
@@ -353,20 +372,46 @@ func (handler *evictLeaderHandler) UpdateConfig(w http.ResponseWriter, r *http.R
 				handler.rd.JSON(w, http.StatusInternalServerError, err.Error())
 				return
 			}
+=======
+		if batchFloat < 1 || batchFloat > 10 {
+			handler.config.removeStore(id)
+			handler.rd.JSON(w, http.StatusBadRequest, "batch is invalid, it should be in [1, 10]")
+			return
+>>>>>>> 6b927e117 (*: reset config if the input is invalid  (#8632))
 		}
 		handler.config.mu.RUnlock()
 		args = append(args, strconv.FormatUint(id, 10))
 	}
 
 	ranges, ok := (input["ranges"]).([]string)
 	if ok {
+<<<<<<< HEAD
 		args = append(args, ranges...)
 	} else if exists {
 		args = append(args, handler.config.getRanges(id)...)
 	}
 
 	handler.config.BuildWithArgs(args)
 	err := handler.config.Persist()
+=======
+		if !inputHasStoreID {
+			handler.config.removeStore(id)
+			handler.rd.JSON(w, http.StatusInternalServerError, errs.ErrSchedulerConfig.FastGenByArgs("id"))
+			return
+		}
+	} else if exist {
+		ranges = handler.config.getRanges(id)
+	}
+
+	newRanges, err = getKeyRanges(ranges)
+	if err != nil {
+		handler.config.removeStore(id)
+		handler.rd.JSON(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	err = handler.config.update(id, newRanges, batch)
+>>>>>>> 6b927e117 (*: reset config if the input is invalid  (#8632))
 	if err != nil {
 		handler.config.removeStore(id)
 		handler.rd.JSON(w, http.StatusInternalServerError, err.Error())

pkg/schedule/schedulers/grant_leader.go

@@ -267,10 +267,20 @@ func (handler *grantLeaderHandler) UpdateConfig(w http.ResponseWriter, r *http.R
 		args = append(args, handler.config.getRanges(id)...)
 	}
 
+<<<<<<< HEAD
 	handler.config.BuildWithArgs(args)
 	err := handler.config.Persist()
+=======
+	err := handler.config.buildWithArgs(args)
 	if err != nil {
-		handler.config.removeStore(id)
+		_, _ = handler.config.removeStore(id)
+		handler.rd.JSON(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	err = handler.config.persist()
+>>>>>>> 6b927e117 (*: reset config if the input is invalid  (#8632))
+	if err != nil {
+		_, _ = handler.config.removeStore(id)
 		handler.rd.JSON(w, http.StatusInternalServerError, err.Error())
 		return
 	}

plugin/scheduler_example/evict_leader.go

@@ -275,9 +275,25 @@ func (handler *evictLeaderHandler) UpdateConfig(w http.ResponseWriter, r *http.R
 		args = append(args, handler.config.getRanges(id)...)
 	}
 
+<<<<<<< HEAD
 	handler.config.BuildWithArgs(args)
 	err := handler.config.Persist()
+=======
+	err := handler.config.BuildWithArgs(args)
 	if err != nil {
+		handler.config.mu.Lock()
+		handler.config.cluster.ResumeLeaderTransfer(id)
+		handler.config.mu.Unlock()
+		handler.rd.JSON(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	err = handler.config.Persist()
+>>>>>>> 6b927e117 (*: reset config if the input is invalid  (#8632))
+	if err != nil {
+		handler.config.mu.Lock()
+		delete(handler.config.StoreIDWitRanges, id)
+		handler.config.cluster.ResumeLeaderTransfer(id)
+		handler.config.mu.Unlock()
 		handler.rd.JSON(w, http.StatusInternalServerError, err.Error())
 	}
 	handler.rd.JSON(w, http.StatusOK, nil)
@@ -298,6 +314,7 @@ func (handler *evictLeaderHandler) DeleteConfig(w http.ResponseWriter, r *http.R
 
 	handler.config.mu.Lock()
 	defer handler.config.mu.Unlock()
+<<<<<<< HEAD
 	_, exists := handler.config.StoreIDWitRanges[id]
 	if exists {
 		delete(handler.config.StoreIDWitRanges, id)
@@ -316,6 +333,27 @@ func (handler *evictLeaderHandler) DeleteConfig(w http.ResponseWriter, r *http.R
 	}
 
 	handler.rd.JSON(w, http.StatusInternalServerError, errors.New("the config does not exist"))
+=======
+	ranges, exists := handler.config.StoreIDWitRanges[id]
+	if !exists {
+		handler.rd.JSON(w, http.StatusInternalServerError, errors.New("the config does not exist"))
+		return
+	}
+	delete(handler.config.StoreIDWitRanges, id)
+	handler.config.cluster.ResumeLeaderTransfer(id)
+
+	if err := handler.config.Persist(); err != nil {
+		handler.config.StoreIDWitRanges[id] = ranges
+		_ = handler.config.cluster.PauseLeaderTransfer(id)
+		handler.rd.JSON(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	var resp any
+	if len(handler.config.StoreIDWitRanges) == 0 {
+		resp = noStoreInSchedulerInfo
+	}
+	handler.rd.JSON(w, http.StatusOK, resp)
+>>>>>>> 6b927e117 (*: reset config if the input is invalid  (#8632))
 }
 
 func newEvictLeaderHandler(config *evictLeaderSchedulerConfig) http.Handler {