diff --git a/core/initialize.go b/core/initialize.go
index 06140fa..0f2a19a 100644
--- a/core/initialize.go
+++ b/core/initialize.go
@@ -24,7 +24,9 @@ func NewContainer(tokenizer *words.Tokenizer) *searcher.Container {
 		Shard:     global.CONFIG.Shard,
 		Timeout:   global.CONFIG.Timeout,
 	}
-	go container.Init()
+	if err := container.Init(); err != nil {
+		panic(err)
+	}
 
 	return container
 }
diff --git a/searcher/engine.go b/searcher/engine.go
index 2adebf4..bbd42e9 100644
--- a/searcher/engine.go
+++ b/searcher/engine.go
@@ -9,10 +9,8 @@ import (
 	"gofound/searcher/storage"
 	"gofound/searcher/utils"
 	"gofound/searcher/words"
-	"io/ioutil"
 	"log"
 	"os"
-	"path"
 	"runtime"
 	"strings"
 	"sync"
@@ -326,8 +324,6 @@ func (e *Engine) MultiSearch(request *model.SearchRequest) *model.SearchResult {
 	//分词搜索
 	words := e.Tokenizer.Cut(request.Query)
 
-	totalTime := float64(0)
-
 	fastSort := &sorts.FastSort{
 		IsDebug: e.IsDebug,
 		Order:   request.Order,
@@ -345,7 +341,6 @@ func (e *Engine) MultiSearch(request *model.SearchRequest) *model.SearchResult {
 		wg.Wait()
 	})
 	if e.IsDebug {
-		log.Println("数组查找耗时：", totalTime, "ms")
 		log.Println("搜索时间:", _time, "ms")
 	}
 	// 处理分页
@@ -539,17 +534,9 @@ func (e *Engine) Drop() error {
 	e.Lock()
 	defer e.Unlock()
 	//删除文件
-	dir, err := ioutil.ReadDir(e.IndexPath)
-	if err != nil {
+	if err := os.RemoveAll(e.IndexPath); err != nil {
 		return err
 	}
-	for _, d := range dir {
-		err := os.RemoveAll(path.Join([]string{d.Name()}...))
-		if err != nil {
-			return err
-		}
-		os.Remove(e.IndexPath)
-	}
 
 	//清空内存
 	for i := 0; i < e.Shard; i++ {
diff --git a/searcher/storage/leveldb_storage.go b/searcher/storage/leveldb_storage.go
index b176f94..e5ebd09 100644
--- a/searcher/storage/leveldb_storage.go
+++ b/searcher/storage/leveldb_storage.go
@@ -5,6 +5,7 @@ import (
 	"github.com/syndtr/goleveldb/leveldb/filter"
 	"github.com/syndtr/goleveldb/leveldb/opt"
 	"log"
+	"sync"
 	"time"
 )
 
@@ -12,6 +13,7 @@ import (
 type LeveldbStorage struct {
 	db       *leveldb.DB
 	path     string
+	mu       sync.RWMutex //加锁
 	closed   bool
 	timeout  int64
 	lastTime int64
@@ -19,7 +21,7 @@ type LeveldbStorage struct {
 }
 
 func (s *LeveldbStorage) autoOpenDB() {
-	if s.closed {
+	if s.isClosed() {
 		s.ReOpen()
 	}
 	s.lastTime = time.Now().Unix()
@@ -47,7 +49,7 @@ func (s *LeveldbStorage) task() {
 	}
 	for {
 
-		if !s.closed && time.Now().Unix()-s.lastTime > s.timeout {
+		if !s.isClosed() && time.Now().Unix()-s.lastTime > s.timeout {
 			s.Close()
 			//log.Println("leveldb storage timeout", s.path)
 		}
@@ -68,17 +70,18 @@ func openDB(path string) (*leveldb.DB, error) {
 	return db, err
 }
 func (s *LeveldbStorage) ReOpen() {
-	if !s.closed {
+	if !s.isClosed() {
 		log.Println("db is not closed")
 		return
 	}
+	s.mu.Lock()
 	db, err := openDB(s.path)
 	if err != nil {
-		return
+		panic(err)
 	}
 	s.db = db
 	s.closed = false
-
+	s.mu.Unlock()
 	//计算总条数
 	go s.compute()
 }
@@ -117,17 +120,22 @@ func (s *LeveldbStorage) Delete(key []byte) error {
 
 // Close 关闭
 func (s *LeveldbStorage) Close() error {
-	if s.closed {
+	if s.isClosed() {
 		return nil
 	}
+	s.mu.Lock()
 	err := s.db.Close()
 	if err != nil {
 		return err
 	}
 	s.closed = true
+	s.mu.Unlock()
 	return nil
 }
+
 func (s *LeveldbStorage) isClosed() bool {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
 	return s.closed
 }
 
@@ -142,7 +150,7 @@ func (s *LeveldbStorage) compute() {
 }
 
 func (s *LeveldbStorage) GetCount() int64 {
-	if s.count == 0 && s.closed {
+	if s.count == 0 && s.isClosed() {
 		s.ReOpen()
 		s.compute()
 	}
diff --git a/web/service/index.go b/web/service/index.go
index 19e36d1..ead7ff8 100644
--- a/web/service/index.go
+++ b/web/service/index.go
@@ -18,7 +18,7 @@ func NewIndex() *Index {
 
 // AddIndex 添加索引
 func (i *Index) AddIndex(dbName string, request *model.IndexDoc) {
-	go i.Container.GetDataBase(dbName).IndexDocument(request)
+	i.Container.GetDataBase(dbName).IndexDocument(request)
 }
 
 // BatchAddIndex 批次添加索引