simulator: scale-in and scale out test for store-limit-version=v2

server/api/store.go

@@ -305,6 +305,10 @@
 // @Router   /store/{id}/limit [post]
 func (h *storeHandler) SetStoreLimit(w http.ResponseWriter, r *http.Request) {
 	rc := getCluster(r)
+	if version := rc.GetScheduleConfig().StoreLimitVersion; version != storelimit.VersionV1 {
+		h.rd.JSON(w, http.StatusBadRequest, fmt.Sprintf("current store limit version:%s not support set limit", version))
+		return
+	}
 	vars := mux.Vars(r)
 	storeID, errParse := apiutil.ParseUint64VarsField(vars, "id")
 	if errParse != nil {
@@ -405,6 +409,11 @@
 // @Failure  500  {string}  string  "PD server failed to proceed the request."
 // @Router   /stores/limit [post]
 func (h *storesHandler) SetAllStoresLimit(w http.ResponseWriter, r *http.Request) {
+	cfg := h.GetScheduleConfig()
+	if version := cfg.StoreLimitVersion; version != storelimit.VersionV1 {
+		h.rd.JSON(w, http.StatusBadRequest, fmt.Sprintf("current store limit version:%s not support get limit", version))
+		return
+	}
 	var input map[string]any
 	if err := apiutil.ReadJSONRespondError(h.rd, w, r.Body, &input); err != nil {
 		return
@@ -485,7 +494,12 @@
 // @Failure  500  {string}  string  "PD server failed to proceed the request."
 // @Router   /stores/limit [get]
 func (h *storesHandler) GetAllStoresLimit(w http.ResponseWriter, r *http.Request) {
-	limits := h.GetScheduleConfig().StoreLimit
+	cfg := h.GetScheduleConfig()
+	if version := cfg.StoreLimitVersion; version != storelimit.VersionV1 {
+		h.rd.JSON(w, http.StatusBadRequest, fmt.Sprintf("current store limit version:%s not support get limit", version))
+		return
+	}
+	limits := cfg.StoreLimit
 	includeTombstone := false
 	var err error
 	if includeStr := r.URL.Query().Get("include_tombstone"); includeStr != "" {

tools/pd-ctl/tests/store/store_test.go

@@ -38,6 +38,38 @@ import (
 	"go.etcd.io/etcd/pkg/transport"
 )
 
+func TestStoreLimitV2(t *testing.T) {
+	re := require.New(t)
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	cluster, err := pdTests.NewTestCluster(ctx, 1)
+	re.NoError(err)
+	err = cluster.RunInitialServers()
+	re.NoError(err)
+	cluster.WaitLeader()
+	pdAddr := cluster.GetConfig().GetClientURL()
+	cmd := ctl.GetRootCmd()
+
+	leaderServer := cluster.GetLeaderServer()
+	re.NoError(leaderServer.BootstrapCluster())
+	defer cluster.Destroy()
+
+	// store command
+	args := []string{"-u", pdAddr, "config", "set", "store-limit-version", "v2"}
+	_, err = tests.ExecuteCommand(cmd, args...)
+	re.NoError(err)
+
+	args = []string{"-u", pdAddr, "store", "limit"}
+	output, err := tests.ExecuteCommand(cmd, args...)
+	re.NoError(err)
+	re.Contains(string(output), "not support get limit")
+
+	args = []string{"-u", pdAddr, "store", "limit", "1", "10"}
+	output, err = tests.ExecuteCommand(cmd, args...)
+	re.NoError(err)
+	re.Contains(string(output), "not support set limit")
+}
+
 func TestStore(t *testing.T) {
 	re := require.New(t)
 	ctx, cancel := context.WithCancel(context.Background())

tools/pd-simulator/README.md

@@ -43,3 +43,14 @@ Run a specific case with an external PD:
 ```shell
 ./pd-simulator -pd="http://127.0.0.1:2379" -case="casename"
 ```
+
+Run with tiup playgroudn :
+```shell
+tiup playground nightly --host 127.0.0.1 --kv.binpath ./pd-simulator --kv=1 --db=0 --kv.config=./tikv.conf
+```
+tikv conf
+```
+case-name="redundant-balance-region"
+sim-tick-interval="1s"
+store-io-per-second=100
+```

tools/pd-simulator/simulator/cases/cases.go

@@ -89,6 +89,7 @@ var IDAllocator idAllocator
 var CaseMap = map[string]func(*config.SimConfig) *Case{
 	"balance-leader":            newBalanceLeader,
 	"redundant-balance-region":  newRedundantBalanceRegion,
+	"scale-in-out":              newScaleInOut,
 	"region-split":              newRegionSplit,
 	"region-merge":              newRegionMerge,
 	"hot-read":                  newHotRead,

tools/pd-simulator/simulator/cases/scale_tikv.go

@@ -0,0 +1,83 @@
+// Copyright 2024 TiKV Project Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cases
+
+import (
+	"github.com/pingcap/kvproto/pkg/metapb"
+	"github.com/tikv/pd/pkg/core"
+	sc "github.com/tikv/pd/tools/pd-simulator/simulator/config"
+	"github.com/tikv/pd/tools/pd-simulator/simulator/info"
+	"github.com/tikv/pd/tools/pd-simulator/simulator/simutil"
+)
+
+func newScaleInOut(config *sc.SimConfig) *Case {
+	var simCase Case
+
+	totalStore := config.TotalStore
+	totalRegion := config.TotalRegion
+	replica := int(config.ServerConfig.Replication.MaxReplicas)
+	if totalStore == 0 || totalRegion == 0 {
+		totalStore, totalRegion = 6, 4000
+	}
+
+	for i := 0; i < totalStore; i++ {
+		s := &Store{
+			ID:     IDAllocator.nextID(),
+			Status: metapb.StoreState_Up,
+		}
+		if i%2 == 1 {
+			s.HasExtraUsedSpace = true
+		}
+		simCase.Stores = append(simCase.Stores, s)
+	}
+
+	for i := 0; i < totalRegion; i++ {
+		peers := make([]*metapb.Peer, 0, replica)
+		for j := 0; j < replica; j++ {
+			peers = append(peers, &metapb.Peer{
+				Id:      simutil.IDAllocator.NextID(),
+				StoreId: uint64((i+j)%totalStore + 1),
+			})
+		}
+		simCase.Regions = append(simCase.Regions, Region{
+			ID:     IDAllocator.nextID(),
+			Peers:  peers,
+			Leader: peers[0],
+		})
+	}
+
+	scaleInTick := int64(totalRegion * 3 / totalStore)
+	addEvent := &AddNodesDescriptor{}
+	addEvent.Step = func(tick int64) uint64 {
+		if tick == scaleInTick {
+			return uint64(totalStore + 1)
+		}
+		return 0
+	}
+
+	removeEvent := &DeleteNodesDescriptor{}
+	removeEvent.Step = func(tick int64) uint64 {
+		if tick == scaleInTick*2 {
+			return uint64(totalStore + 1)
+		}
+		return 0
+	}
+	simCase.Events = []EventDescriptor{addEvent, removeEvent}
+
+	simCase.Checker = func(_ *core.RegionsInfo, _ []info.StoreStats) bool {
+		return false
+	}
+	return &simCase
+}