diff --git a/server/api/region_test.go b/server/api/region_test.go
index 7fc802541329..816fefcc092e 100644
--- a/server/api/region_test.go
+++ b/server/api/region_test.go
@@ -456,57 +456,57 @@ func (s *testGetRegionSuite) TestScanRegionByKeys(c *C) {
 	mustRegionHeartbeat(c, s.svr, r)
 
 	url := fmt.Sprintf("%s/regions/key?key=%s", s.urlPrefix, "b")
-	regionIds := []uint64{3, 4, 5, 99}
+	regionIDs := []uint64{3, 4, 5, 99}
 	regions := &RegionsInfo{}
 	err := tu.ReadGetJSON(c, testDialClient, url, regions)
 	c.Assert(err, IsNil)
-	c.Assert(regionIds, HasLen, regions.Count)
-	for i, v := range regionIds {
+	c.Assert(regionIDs, HasLen, regions.Count)
+	for i, v := range regionIDs {
 		c.Assert(v, Equals, regions.Regions[i].ID)
 	}
 	url = fmt.Sprintf("%s/regions/key?key=%s", s.urlPrefix, "d")
-	regionIds = []uint64{4, 5, 99}
+	regionIDs = []uint64{4, 5, 99}
 	regions = &RegionsInfo{}
 	err = tu.ReadGetJSON(c, testDialClient, url, regions)
 	c.Assert(err, IsNil)
-	c.Assert(regionIds, HasLen, regions.Count)
-	for i, v := range regionIds {
+	c.Assert(regionIDs, HasLen, regions.Count)
+	for i, v := range regionIDs {
 		c.Assert(v, Equals, regions.Regions[i].ID)
 	}
 	url = fmt.Sprintf("%s/regions/key?key=%s", s.urlPrefix, "g")
-	regionIds = []uint64{5, 99}
+	regionIDs = []uint64{5, 99}
 	regions = &RegionsInfo{}
 	err = tu.ReadGetJSON(c, testDialClient, url, regions)
 	c.Assert(err, IsNil)
-	c.Assert(regionIds, HasLen, regions.Count)
-	for i, v := range regionIds {
+	c.Assert(regionIDs, HasLen, regions.Count)
+	for i, v := range regionIDs {
 		c.Assert(v, Equals, regions.Regions[i].ID)
 	}
 	url = fmt.Sprintf("%s/regions/key?end_key=%s", s.urlPrefix, "e")
-	regionIds = []uint64{2, 3, 4}
+	regionIDs = []uint64{2, 3, 4}
 	regions = &RegionsInfo{}
 	err = tu.ReadGetJSON(c, testDialClient, url, regions)
 	c.Assert(err, IsNil)
-	c.Assert(len(regionIds), Equals, regions.Count)
-	for i, v := range regionIds {
+	c.Assert(len(regionIDs), Equals, regions.Count)
+	for i, v := range regionIDs {
 		c.Assert(v, Equals, regions.Regions[i].ID)
 	}
 	url = fmt.Sprintf("%s/regions/key?key=%s&end_key=%s", s.urlPrefix, "b", "g")
-	regionIds = []uint64{3, 4}
+	regionIDs = []uint64{3, 4}
 	regions = &RegionsInfo{}
 	err = tu.ReadGetJSON(c, testDialClient, url, regions)
 	c.Assert(err, IsNil)
-	c.Assert(len(regionIds), Equals, regions.Count)
-	for i, v := range regionIds {
+	c.Assert(len(regionIDs), Equals, regions.Count)
+	for i, v := range regionIDs {
 		c.Assert(v, Equals, regions.Regions[i].ID)
 	}
 	url = fmt.Sprintf("%s/regions/key?key=%s&end_key=%s", s.urlPrefix, "b", []byte{0xFF, 0xFF, 0xCC})
-	regionIds = []uint64{3, 4, 5, 99}
+	regionIDs = []uint64{3, 4, 5, 99}
 	regions = &RegionsInfo{}
 	err = tu.ReadGetJSON(c, testDialClient, url, regions)
 	c.Assert(err, IsNil)
-	c.Assert(len(regionIds), Equals, regions.Count)
-	for i, v := range regionIds {
+	c.Assert(len(regionIDs), Equals, regions.Count)
+	for i, v := range regionIDs {
 		c.Assert(v, Equals, regions.Regions[i].ID)
 	}
 }
diff --git a/server/core/basic_cluster.go b/server/core/basic_cluster.go
index 9100636d3766..6509857398db 100644
--- a/server/core/basic_cluster.go
+++ b/server/core/basic_cluster.go
@@ -95,7 +95,7 @@ func (bc *BasicCluster) GetRegionStores(region *RegionInfo) []*StoreInfo {
 	bc.RLock()
 	defer bc.RUnlock()
 	var Stores []*StoreInfo
-	for id := range region.GetStoreIds() {
+	for id := range region.GetStoreIDs() {
 		if store := bc.Stores.GetStore(id); store != nil {
 			Stores = append(Stores, store)
 		}
diff --git a/server/core/region.go b/server/core/region.go
index cc688712ad89..8114a0e411db 100644
--- a/server/core/region.go
+++ b/server/core/region.go
@@ -349,8 +349,8 @@ func (r *RegionInfo) GetStoreLearner(storeID uint64) *metapb.Peer {
 	return nil
 }
 
-// GetStoreIds returns a map indicate the region distributed.
-func (r *RegionInfo) GetStoreIds() map[uint64]struct{} {
+// GetStoreIDs returns a map indicate the region distributed.
+func (r *RegionInfo) GetStoreIDs() map[uint64]struct{} {
 	peers := r.meta.GetPeers()
 	stores := make(map[uint64]struct{}, len(peers))
 	for _, peer := range peers {
diff --git a/server/core/region_option.go b/server/core/region_option.go
index b06c784c0f65..c0d2204de2bb 100644
--- a/server/core/region_option.go
+++ b/server/core/region_option.go
@@ -96,14 +96,14 @@ func WithNewRegionID(id uint64) RegionCreateOption {
 	}
 }
 
-// WithNewPeerIds sets new ids for peers.
-func WithNewPeerIds(peerIds ...uint64) RegionCreateOption {
+// WithNewPeerIDs sets new ids for peers.
+func WithNewPeerIDs(peerIDs ...uint64) RegionCreateOption {
 	return func(region *RegionInfo) {
-		if len(peerIds) != len(region.meta.GetPeers()) {
+		if len(peerIDs) != len(region.meta.GetPeers()) {
 			return
 		}
 		for i, p := range region.meta.GetPeers() {
-			p.Id = peerIds[i]
+			p.Id = peerIDs[i]
 		}
 	}
 }
diff --git a/server/core/region_tree_test.go b/server/core/region_tree_test.go
index 0f813717fcb0..7538f04dd744 100644
--- a/server/core/region_tree_test.go
+++ b/server/core/region_tree_test.go
@@ -80,7 +80,7 @@ func TestRegionInfo(t *testing.T) {
 	r = r.Clone(WithEndKey([]byte{1}))
 	re.Regexp(".*EndKey Changed.*", DiffRegionKeyInfo(r, info))
 
-	stores := r.GetStoreIds()
+	stores := r.GetStoreIDs()
 	re.Len(stores, int(n))
 	for i := uint64(0); i < n; i++ {
 		_, ok := stores[i]
diff --git a/server/schedule/checker/merge_checker.go b/server/schedule/checker/merge_checker.go
index e5624d48d2de..fcfc087a3cb5 100644
--- a/server/schedule/checker/merge_checker.go
+++ b/server/schedule/checker/merge_checker.go
@@ -282,7 +282,7 @@ func isTableIDSame(region, adjacent *core.RegionInfo) bool {
 // while the source region has no peer on it. This is to prevent from bringing
 // any other peer into an offline store to slow down the offline process.
 func checkPeerStore(cluster schedule.Cluster, region, adjacent *core.RegionInfo) bool {
-	regionStoreIDs := region.GetStoreIds()
+	regionStoreIDs := region.GetStoreIDs()
 	for _, peer := range adjacent.GetPeers() {
 		storeID := peer.GetStoreId()
 		store := cluster.GetStore(storeID)
diff --git a/server/schedule/checker/replica_strategy.go b/server/schedule/checker/replica_strategy.go
index 5856e3e91cc2..3a8214e420ee 100644
--- a/server/schedule/checker/replica_strategy.go
+++ b/server/schedule/checker/replica_strategy.go
@@ -53,7 +53,7 @@ func (s *ReplicaStrategy) SelectStoreToAdd(coLocationStores []*core.StoreInfo, e
 	// The reason for it is to prevent the non-optimal replica placement due
 	// to the short-term state, resulting in redundant scheduling.
 	filters := []filter.Filter{
-		filter.NewExcludedFilter(s.checkerName, nil, s.region.GetStoreIds()),
+		filter.NewExcludedFilter(s.checkerName, nil, s.region.GetStoreIDs()),
 		filter.NewStorageThresholdFilter(s.checkerName),
 		filter.NewSpecialUseFilter(s.checkerName),
 		&filter.LongTermStateFilter{ActionScope: s.checkerName, MoveRegion: true},
diff --git a/server/schedule/test_util.go b/server/schedule/test_util.go
index b6484042d3bd..67b6f8914742 100644
--- a/server/schedule/test_util.go
+++ b/server/schedule/test_util.go
@@ -79,10 +79,10 @@ func ApplyOperator(mc *mockcluster.Cluster, op *operator.Operator) {
 		region = ApplyOperatorStep(region, op)
 	}
 	mc.PutRegion(region)
-	for id := range region.GetStoreIds() {
+	for id := range region.GetStoreIDs() {
 		mc.UpdateStoreStatus(id)
 	}
-	for id := range origin.GetStoreIds() {
+	for id := range origin.GetStoreIDs() {
 		mc.UpdateStoreStatus(id)
 	}
 }
diff --git a/server/schedulers/balance_region.go b/server/schedulers/balance_region.go
index 97ee764ded49..964fc88da2c4 100644
--- a/server/schedulers/balance_region.go
+++ b/server/schedulers/balance_region.go
@@ -217,7 +217,7 @@ func (s *balanceRegionScheduler) Schedule(cluster schedule.Cluster) []*operator.
 // transferPeer selects the best store to create a new peer to replace the old peer.
 func (s *balanceRegionScheduler) transferPeer(plan *balancePlan) *operator.Operator {
 	filters := []filter.Filter{
-		filter.NewExcludedFilter(s.GetName(), nil, plan.region.GetStoreIds()),
+		filter.NewExcludedFilter(s.GetName(), nil, plan.region.GetStoreIDs()),
 		filter.NewPlacementSafeguard(s.GetName(), plan.GetOpts(), plan.GetBasicCluster(), plan.GetRuleManager(), plan.region, plan.source),
 		filter.NewRegionScoreFilter(s.GetName(), plan.source, plan.GetOpts()),
 		filter.NewSpecialUseFilter(s.GetName()),
diff --git a/server/schedulers/grant_hot_region.go b/server/schedulers/grant_hot_region.go
index ac67f78a5372..9d52a5b0f1fc 100644
--- a/server/schedulers/grant_hot_region.go
+++ b/server/schedulers/grant_hot_region.go
@@ -363,7 +363,7 @@ func (s *grantHotRegionScheduler) transfer(cluster schedule.Cluster, regionID ui
 	} else {
 		filters = append(filters, &filter.LongTermStateFilter{ActionScope: s.GetName(), MoveRegion: true},
 			&filter.TemporaryStateFilter{ActionScope: s.GetName(), MoveRegion: true},
-			filter.NewExcludedFilter(s.GetName(), srcRegion.GetStoreIds(), srcRegion.GetStoreIds()))
+			filter.NewExcludedFilter(s.GetName(), srcRegion.GetStoreIDs(), srcRegion.GetStoreIDs()))
 		candidate = s.conf.StoreIDs
 	}
 	for _, storeID := range candidate {
diff --git a/server/schedulers/hot_region.go b/server/schedulers/hot_region.go
index 31c3b84c28d1..4f561723cff7 100644
--- a/server/schedulers/hot_region.go
+++ b/server/schedulers/hot_region.go
@@ -729,7 +729,7 @@ func (bs *balanceSolver) filterDstStores() map[uint64]*statistics.StoreLoadDetai
 		filters = []filter.Filter{
 			&filter.LongTermStateFilter{ActionScope: bs.sche.GetName(), MoveRegion: true},
 			&filter.TemporaryStateFilter{ActionScope: bs.sche.GetName(), MoveRegion: true},
-			filter.NewExcludedFilter(bs.sche.GetName(), bs.cur.region.GetStoreIds(), bs.cur.region.GetStoreIds()),
+			filter.NewExcludedFilter(bs.sche.GetName(), bs.cur.region.GetStoreIDs(), bs.cur.region.GetStoreIDs()),
 			filter.NewSpecialUseFilter(bs.sche.GetName(), filter.SpecialUseHotRegion),
 			filter.NewPlacementSafeguard(bs.sche.GetName(), bs.GetOpts(), bs.GetBasicCluster(), bs.GetRuleManager(), bs.cur.region, srcStore),
 		}
diff --git a/server/schedulers/shuffle_hot_region.go b/server/schedulers/shuffle_hot_region.go
index 832091fe7552..2301df4754f0 100644
--- a/server/schedulers/shuffle_hot_region.go
+++ b/server/schedulers/shuffle_hot_region.go
@@ -180,7 +180,7 @@ func (s *shuffleHotRegionScheduler) randomSchedule(cluster schedule.Cluster, loa
 		filters := []filter.Filter{
 			&filter.LongTermStateFilter{ActionScope: s.GetName(), MoveRegion: true},
 			&filter.TemporaryStateFilter{ActionScope: s.GetName(), MoveRegion: true},
-			filter.NewExcludedFilter(s.GetName(), srcRegion.GetStoreIds(), srcRegion.GetStoreIds()),
+			filter.NewExcludedFilter(s.GetName(), srcRegion.GetStoreIDs(), srcRegion.GetStoreIDs()),
 			filter.NewPlacementSafeguard(s.GetName(), cluster.GetOpts(), cluster.GetBasicCluster(), cluster.GetRuleManager(), srcRegion, srcStore),
 		}
 		stores := cluster.GetStores()
diff --git a/server/schedulers/shuffle_region.go b/server/schedulers/shuffle_region.go
index e6dbfd2898f9..17a96f77f95c 100644
--- a/server/schedulers/shuffle_region.go
+++ b/server/schedulers/shuffle_region.go
@@ -160,7 +160,7 @@ func (s *shuffleRegionScheduler) scheduleAddPeer(cluster schedule.Cluster, regio
 		return nil
 	}
 	scoreGuard := filter.NewPlacementSafeguard(s.GetName(), cluster.GetOpts(), cluster.GetBasicCluster(), cluster.GetRuleManager(), region, store)
-	excludedFilter := filter.NewExcludedFilter(s.GetName(), nil, region.GetStoreIds())
+	excludedFilter := filter.NewExcludedFilter(s.GetName(), nil, region.GetStoreIDs())
 
 	target := filter.NewCandidates(cluster.GetStores()).
 		FilterTarget(cluster.GetOpts(), s.filters...).
diff --git a/tools/pd-simulator/simulator/event.go b/tools/pd-simulator/simulator/event.go
index 13032e45d20c..f2504de9021f 100644
--- a/tools/pd-simulator/simulator/event.go
+++ b/tools/pd-simulator/simulator/event.go
@@ -187,7 +187,7 @@ func (e *DeleteNodes) Run(raft *RaftEngine, tickCount int64) bool {
 
 	regions := raft.GetRegions()
 	for _, region := range regions {
-		storeIDs := region.GetStoreIds()
+		storeIDs := region.GetStoreIDs()
 		if _, ok := storeIDs[id]; ok {
 			downPeer := &pdpb.PeerStats{
 				Peer:        region.GetStorePeer(id),
diff --git a/tools/pd-simulator/simulator/raft.go b/tools/pd-simulator/simulator/raft.go
index c31940718842..644a86ef7d52 100644
--- a/tools/pd-simulator/simulator/raft.go
+++ b/tools/pd-simulator/simulator/raft.go
@@ -146,7 +146,7 @@ func (r *RaftEngine) stepSplit(region *core.RegionInfo) {
 	}
 	left := region.Clone(
 		core.WithNewRegionID(ids[len(ids)-1]),
-		core.WithNewPeerIds(ids[0:len(ids)-1]...),
+		core.WithNewPeerIDs(ids[0:len(ids)-1]...),
 		core.WithIncVersion(),
 		core.SetApproximateKeys(region.GetApproximateKeys()/2),
 		core.SetApproximateSize(region.GetApproximateSize()/2),
@@ -196,7 +196,7 @@ func (r *RaftEngine) updateRegionStore(region *core.RegionInfo, size int64) {
 		core.SetApproximateSize(region.GetApproximateSize()+size),
 		core.SetWrittenBytes(uint64(size)),
 	)
-	storeIDs := region.GetStoreIds()
+	storeIDs := region.GetStoreIDs()
 	for storeID := range storeIDs {
 		r.conn.Nodes[storeID].incUsedSize(uint64(size))
 	}
@@ -220,7 +220,7 @@ func (r *RaftEngine) electNewLeader(region *core.RegionInfo) *metapb.Peer {
 		unhealthy        int
 		newLeaderStoreID uint64
 	)
-	ids := region.GetStoreIds()
+	ids := region.GetStoreIDs()
 	for id := range ids {
 		if r.conn.nodeHealth(id) {
 			newLeaderStoreID = id