diff --git a/internal/caches/list_file_kv_store.go b/internal/caches/list_file_kv_store.go
index 5b77c7f..5f66568 100644
--- a/internal/caches/list_file_kv_store.go
+++ b/internal/caches/list_file_kv_store.go
@@ -7,7 +7,6 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/utils/fasttime"
 	"github.com/TeaOSLab/EdgeNode/internal/utils/kvstore"
 	"github.com/cockroachdb/pebble"
-	"github.com/iwind/TeaGo/types"
 	"regexp"
 	"strings"
 	"testing"
@@ -20,7 +19,7 @@ type KVListFileStore struct {
 	// tables
 	itemsTable *kvstore.Table[*Item]
 
-	isReady bool
+	rawIsReady bool
 }
 
 func NewKVListFileStore(path string) *KVListFileStore {
@@ -64,7 +63,7 @@ func (this *KVListFileStore) Open() error {
 		this.itemsTable = table
 	}
 
-	this.isReady = true
+	this.rawIsReady = true
 
 	return nil
 }
@@ -74,13 +73,13 @@ func (this *KVListFileStore) Path() string {
 }
 
 func (this *KVListFileStore) AddItem(hash string, item *Item) error {
-	if !this.isReady {
+	if !this.isReady() {
 		return nil
 	}
 
 	var currentTime = fasttime.Now().Unix()
 	if item.ExpiresAt <= currentTime {
-		return errors.New("invalid expires time '" + types.String(item.ExpiresAt) + "'")
+		return nil
 	}
 	if item.CreatedAt <= 0 {
 		item.CreatedAt = currentTime
@@ -92,7 +91,7 @@ func (this *KVListFileStore) AddItem(hash string, item *Item) error {
 }
 
 func (this *KVListFileStore) ExistItem(hash string) (bool, error) {
-	if !this.isReady {
+	if !this.isReady() {
 		return false, nil
 	}
 
@@ -111,7 +110,7 @@ func (this *KVListFileStore) ExistItem(hash string) (bool, error) {
 }
 
 func (this *KVListFileStore) ExistQuickItem(hash string) (bool, error) {
-	if !this.isReady {
+	if !this.isReady() {
 		return false, nil
 	}
 
@@ -119,7 +118,7 @@ func (this *KVListFileStore) ExistQuickItem(hash string) (bool, error) {
 }
 
 func (this *KVListFileStore) RemoveItem(hash string) error {
-	if !this.isReady {
+	if !this.isReady() {
 		return nil
 	}
 
@@ -127,7 +126,7 @@ func (this *KVListFileStore) RemoveItem(hash string) error {
 }
 
 func (this *KVListFileStore) RemoveAllItems() error {
-	if !this.isReady {
+	if !this.isReady() {
 		return nil
 	}
 
@@ -135,7 +134,7 @@ func (this *KVListFileStore) RemoveAllItems() error {
 }
 
 func (this *KVListFileStore) PurgeItems(count int, callback func(hash string) error) (int, error) {
-	if !this.isReady {
+	if !this.isReady() {
 		return 0, nil
 	}
 
@@ -188,7 +187,7 @@ func (this *KVListFileStore) PurgeItems(count int, callback func(hash string) er
 }
 
 func (this *KVListFileStore) PurgeLFUItems(count int, callback func(hash string) error) error {
-	if !this.isReady {
+	if !this.isReady() {
 		return nil
 	}
 
@@ -234,7 +233,7 @@ func (this *KVListFileStore) PurgeLFUItems(count int, callback func(hash string)
 }
 
 func (this *KVListFileStore) CleanItemsWithPrefix(prefix string) error {
-	if !this.isReady {
+	if !this.isReady() {
 		return nil
 	}
 
@@ -292,7 +291,7 @@ func (this *KVListFileStore) CleanItemsWithPrefix(prefix string) error {
 }
 
 func (this *KVListFileStore) CleanItemsWithWildcardPrefix(prefix string) error {
-	if !this.isReady {
+	if !this.isReady() {
 		return nil
 	}
 
@@ -350,7 +349,7 @@ func (this *KVListFileStore) CleanItemsWithWildcardPrefix(prefix string) error {
 }
 
 func (this *KVListFileStore) CleanItemsWithWildcardKey(key string) error {
-	if !this.isReady {
+	if !this.isReady() {
 		return nil
 	}
 
@@ -419,7 +418,7 @@ func (this *KVListFileStore) CleanItemsWithWildcardKey(key string) error {
 }
 
 func (this *KVListFileStore) CountItems() (int64, error) {
-	if !this.isReady {
+	if !this.isReady() {
 		return 0, nil
 	}
 
@@ -427,7 +426,7 @@ func (this *KVListFileStore) CountItems() (int64, error) {
 }
 
 func (this *KVListFileStore) StatItems() (*Stat, error) {
-	if !this.isReady {
+	if !this.isReady() {
 		return &Stat{}, nil
 	}
 
@@ -447,7 +446,7 @@ func (this *KVListFileStore) StatItems() (*Stat, error) {
 }
 
 func (this *KVListFileStore) TestInspect(t *testing.T) error {
-	if !this.isReady {
+	if !this.isReady() {
 		return nil
 	}
 
@@ -470,11 +469,13 @@ func (this *KVListFileStore) TestInspect(t *testing.T) error {
 }
 
 func (this *KVListFileStore) Close() error {
-	this.isReady = false
-
 	if this.rawStore != nil {
 		return this.rawStore.Close()
 	}
 
 	return nil
 }
+
+func (this *KVListFileStore) isReady() bool {
+	return this.rawIsReady && !this.rawStore.IsClosed()
+}
diff --git a/internal/utils/kvstore/query_test.go b/internal/utils/kvstore/query_test.go
index 814a3c9..bf0cad0 100644
--- a/internal/utils/kvstore/query_test.go
+++ b/internal/utils/kvstore/query_test.go
@@ -5,6 +5,7 @@ package kvstore_test
 import (
 	"fmt"
 	"github.com/TeaOSLab/EdgeNode/internal/utils/kvstore"
+	"github.com/iwind/TeaGo/assert"
 	"runtime"
 	"testing"
 	"time"
@@ -25,6 +26,7 @@ func TestQuery_FindAll(t *testing.T) {
 		//Desc().
 		FindAll(func(tx *kvstore.Tx[*testCachedItem], item kvstore.Item[*testCachedItem]) (goNext bool, err error) {
 			t.Log("key:", item.Key, "value:", item.Value)
+
 			return true, nil
 		})
 	if err != nil {
@@ -46,6 +48,12 @@ func TestQuery_FindAll_Break(t *testing.T) {
 		FindAll(func(tx *kvstore.Tx[*testCachedItem], item kvstore.Item[*testCachedItem]) (goNext bool, err error) {
 			t.Log("key:", item.Key, "value:", item.Value)
 			count++
+
+			if count > 2 {
+				// break test
+				_ = table.DB().Store().Close()
+			}
+
 			return count < 3, nil
 		})
 	if err != nil {
@@ -53,6 +61,34 @@ func TestQuery_FindAll_Break(t *testing.T) {
 	}
 }
 
+func TestQuery_FindAll_Break_Closed(t *testing.T) {
+	var table = testOpenStoreTable[*testCachedItem](t, "cache_items", &testCacheItemEncoder[*testCachedItem]{})
+
+	var a = assert.NewAssertion(t)
+
+	var before = time.Now()
+	defer func() {
+		t.Log("cost:", time.Since(before).Seconds()*1000, "ms")
+	}()
+
+	var count int
+	err := table.
+		Query().
+		FindAll(func(tx *kvstore.Tx[*testCachedItem], item kvstore.Item[*testCachedItem]) (goNext bool, err error) {
+			t.Log("key:", item.Key, "value:", item.Value)
+			count++
+
+			if count > 2 {
+				// break test
+				_ = table.DB().Store().Close()
+			}
+
+			return count < 3, nil
+		})
+	t.Log("expected error:", err)
+	a.IsTrue(err != nil)
+}
+
 func TestQuery_FindAll_Desc(t *testing.T) {
 	var table = testOpenStoreTable[*testCachedItem](t, "cache_items", &testCacheItemEncoder[*testCachedItem]{})
 
diff --git a/internal/utils/kvstore/store.go b/internal/utils/kvstore/store.go
index db40236..9946a61 100644
--- a/internal/utils/kvstore/store.go
+++ b/internal/utils/kvstore/store.go
@@ -26,7 +26,7 @@ type Store struct {
 
 	dbs []*DB
 
-	locker sync.Mutex
+	mu sync.Mutex
 }
 
 // NewStore create store with name
@@ -126,8 +126,8 @@ func (this *Store) NewDB(dbName string) (*DB, error) {
 		return nil, err
 	}
 
-	this.locker.Lock()
-	defer this.locker.Unlock()
+	this.mu.Lock()
+	defer this.mu.Unlock()
 
 	this.dbs = append(this.dbs, db)
 	return db, nil
@@ -142,7 +142,7 @@ func (this *Store) Close() error {
 		return nil
 	}
 
-	this.locker.Lock()
+	this.mu.Lock()
 	var lastErr error
 	for _, db := range this.dbs {
 		err := db.Close()
@@ -151,12 +151,16 @@ func (this *Store) Close() error {
 		}
 	}
 
-	this.locker.Unlock()
+	this.mu.Unlock()
 
 	if this.rawDB != nil {
 		this.isClosed = true
-		return this.rawDB.Close()
+		err := this.rawDB.Close()
+		if err != nil {
+			return err
+		}
 	}
+
 	return lastErr
 }
 
diff --git a/internal/utils/kvstore/table.go b/internal/utils/kvstore/table.go
index bf69ec7..70d37b7 100644
--- a/internal/utils/kvstore/table.go
+++ b/internal/utils/kvstore/table.go
@@ -60,6 +60,10 @@ func (this *Table[T]) SetDB(db *DB) {
 	this.db = db
 }
 
+func (this *Table[T]) DB() *DB {
+	return this.db
+}
+
 func (this *Table[T]) Set(key string, value T) error {
 	if len(key) > KeyMaxLength {
 		return ErrKeyTooLong
diff --git a/internal/utils/kvstore/tx.go b/internal/utils/kvstore/tx.go
index 9fa638a..0cc2463 100644
--- a/internal/utils/kvstore/tx.go
+++ b/internal/utils/kvstore/tx.go
@@ -4,6 +4,7 @@ package kvstore
 
 import (
 	"errors"
+	"fmt"
 	"github.com/cockroachdb/pebble"
 )
 
@@ -59,7 +60,17 @@ func (this *Tx[T]) Close() error {
 	return this.batch.Close()
 }
 
-func (this *Tx[T]) Commit() error {
+func (this *Tx[T]) Commit() (err error) {
+	defer func() {
+		var panicErr = recover()
+		if panicErr != nil {
+			resultErr, ok := panicErr.(error)
+			if ok {
+				err = fmt.Errorf("commit batch failed: %w", resultErr)
+			}
+		}
+	}()
+
 	return this.batch.Commit(DefaultWriteOptions)
 }