diff --git a/store/copr/mpp_probe.go b/store/copr/mpp_probe.go
index bfceff6d1a333..0a0eba286648e 100644
--- a/store/copr/mpp_probe.go
+++ b/store/copr/mpp_probe.go
@@ -44,16 +44,18 @@ const (
 	MaxObsoletTimeLimit = time.Hour
 )
 
-// MPPSotreState the state for MPPStore.
-type MPPSotreState struct {
+// MPPStoreState the state for MPPStore.
+type MPPStoreState struct {
 	address    string // MPPStore TiFlash address
 	tikvClient tikv.Client
 
-	lock sync.Mutex
+	lock struct {
+		sync.Mutex
 
-	recoveryTime   time.Time
-	lastLookupTime time.Time
-	lastDetectTime time.Time
+		recoveryTime   time.Time
+		lastLookupTime time.Time
+		lastDetectTime time.Time
+	}
 }
 
 // MPPFailedStoreProber use for detecting of failed TiFlash instance
@@ -71,40 +73,40 @@ type MPPFailedStoreProber struct {
 	maxObsoletTimeLimit  time.Duration
 }
 
-func (t *MPPSotreState) detect(ctx context.Context, detectPeriod time.Duration, detectTimeoutLimit time.Duration) {
-	if time.Since(t.lastDetectTime) < detectPeriod {
+func (t *MPPStoreState) detect(ctx context.Context, detectPeriod time.Duration, detectTimeoutLimit time.Duration) {
+	if time.Since(t.lock.lastDetectTime) < detectPeriod {
 		return
 	}
 
-	defer func() { t.lastDetectTime = time.Now() }()
+	defer func() { t.lock.lastDetectTime = time.Now() }()
 	metrics.TiFlashFailedMPPStoreState.WithLabelValues(t.address).Set(0)
 	ok := detectMPPStore(ctx, t.tikvClient, t.address, detectTimeoutLimit)
 	if !ok {
 		metrics.TiFlashFailedMPPStoreState.WithLabelValues(t.address).Set(1)
-		t.recoveryTime = time.Time{} // if detect failed,reset recovery time to zero.
+		t.lock.recoveryTime = time.Time{} // if detect failed,reset recovery time to zero.
 		return
 	}
 
 	// record the time of the first recovery
-	if t.recoveryTime.IsZero() {
-		t.recoveryTime = time.Now()
+	if t.lock.recoveryTime.IsZero() {
+		t.lock.recoveryTime = time.Now()
 	}
 }
 
-func (t *MPPSotreState) isRecovery(ctx context.Context, recoveryTTL time.Duration) bool {
+func (t *MPPStoreState) isRecovery(ctx context.Context, recoveryTTL time.Duration) bool {
 	if !t.lock.TryLock() {
 		return false
 	}
 	defer t.lock.Unlock()
 
-	t.lastLookupTime = time.Now()
-	if !t.recoveryTime.IsZero() && time.Since(t.recoveryTime) > recoveryTTL {
+	t.lock.lastLookupTime = time.Now()
+	if !t.lock.recoveryTime.IsZero() && time.Since(t.lock.recoveryTime) > recoveryTTL {
 		return true
 	}
 	logutil.Logger(ctx).Debug("Cannot detect store's availability "+
 		"because the current time has not recovery or wait mppStoreFailTTL",
 		zap.String("store address", t.address),
-		zap.Time("recovery time", t.recoveryTime),
+		zap.Time("recovery time", t.lock.recoveryTime),
 		zap.Duration("MPPStoreFailTTL", recoveryTTL))
 	return false
 }
@@ -118,9 +120,9 @@ func (t MPPFailedStoreProber) scan(ctx context.Context) {
 
 	do := func(k, v any) {
 		address := fmt.Sprint(k)
-		state, ok := v.(*MPPSotreState)
+		state, ok := v.(*MPPStoreState)
 		if !ok {
-			logutil.BgLogger().Warn("MPPSotreState struct assert failed,will be clean",
+			logutil.BgLogger().Warn("MPPStoreState struct assert failed,will be clean",
 				zap.String("address", address))
 			t.Delete(address)
 			return
@@ -134,10 +136,10 @@ func (t MPPFailedStoreProber) scan(ctx context.Context) {
 		state.detect(ctx, t.detectPeriod, t.detectTimeoutLimit)
 
 		// clean restored store
-		if !state.recoveryTime.IsZero() && time.Since(state.recoveryTime) > t.maxRecoveryTimeLimit {
+		if !state.lock.recoveryTime.IsZero() && time.Since(state.lock.recoveryTime) > t.maxRecoveryTimeLimit {
 			t.Delete(address)
 			// clean store that may be obsolete
-		} else if state.recoveryTime.IsZero() && time.Since(state.lastLookupTime) > t.maxObsoletTimeLimit {
+		} else if state.lock.recoveryTime.IsZero() && time.Since(state.lock.lastLookupTime) > t.maxObsoletTimeLimit {
 			t.Delete(address)
 		}
 	}
@@ -153,11 +155,11 @@ func (t MPPFailedStoreProber) scan(ctx context.Context) {
 
 // Add add a store when sync probe failed
 func (t *MPPFailedStoreProber) Add(ctx context.Context, address string, tikvClient tikv.Client) {
-	state := MPPSotreState{
-		address:        address,
-		tikvClient:     tikvClient,
-		lastLookupTime: time.Now(),
+	state := MPPStoreState{
+		address:    address,
+		tikvClient: tikvClient,
 	}
+	state.lock.lastLookupTime = time.Now()
 	logutil.Logger(ctx).Debug("add mpp store to failed list", zap.String("address", address))
 	t.failedMPPStores.Store(address, &state)
 }
@@ -172,9 +174,9 @@ func (t *MPPFailedStoreProber) IsRecovery(ctx context.Context, address string, r
 		return true
 	}
 
-	state, ok := v.(*MPPSotreState)
+	state, ok := v.(*MPPStoreState)
 	if !ok {
-		logutil.BgLogger().Warn("MPPSotreState struct assert failed,will be clean",
+		logutil.BgLogger().Warn("MPPStoreState struct assert failed,will be clean",
 			zap.String("address", address))
 		t.Delete(address)
 		return false