diff --git a/libsearch/index/first-index.cpp b/libsearch/index/first-index.cpp
index 587e005..03a450b 100644
--- a/libsearch/index/first-index.cpp
+++ b/libsearch/index/first-index.cpp
@@ -151,7 +151,7 @@ void FirstIndex::run(){
         mutex1.unlock();
         mutex2.unlock();
         mutex3.unlock();
-        _exit(0);
+        ::exit(0);
 
 
 
diff --git a/libsearch/index/inotify-index.cpp b/libsearch/index/inotify-index.cpp
index 19b2df6..232e185 100644
--- a/libsearch/index/inotify-index.cpp
+++ b/libsearch/index/inotify-index.cpp
@@ -353,7 +353,7 @@ fork:
                 }
                 else if ( rc == 0 ) {
                     qDebug() << "select timeout!";
-                    _exit(0);
+                   ::exit(0);
                 }else{
                     numRead = read(m_fd, buf, BUF_LEN);
                     if (numRead == -1){
@@ -375,7 +375,7 @@ fork:
             //MouseZhangZh
 
 //            connect(liveTime, &QTimer::timeout, [ = ](){
-////                _exit(0);
+////                ::exit(0);
 //                *b_timeout = 1;
 //            });
 //            for (;;){
@@ -384,7 +384,7 @@ fork:
 //                this->eventProcess(buf, numRead);
 //                if (liveTime->remainingTime() < 1){
 //                    qDebug() << "liveTime->remainingTime():" << liveTime->remainingTime();
-//                    _exit(0);
+//                    ::exit(0);
 //                }
 //            }
         }
diff --git a/src/main.cpp b/src/main.cpp
index 13aaa9f..cc5a436 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -36,15 +36,23 @@
 
 void handler(int){
     qDebug() << "Recieved SIGTERM!";
+
+
+
     GlobalSettings::getInstance()->setValue(INDEX_DATABASE_STATE, "2");
     GlobalSettings::getInstance()->setValue(CONTENT_INDEX_DATABASE_STATE, "2");
     GlobalSettings::getInstance()->setValue(INDEX_GENERATOR_NORMAL_EXIT, "2");
     GlobalSettings::getInstance()->setValue(INOTIFY_NORMAL_EXIT, "2");
+    GlobalSettings::getInstance()->forceSync(INDEX_DATABASE_STATE);
+    GlobalSettings::getInstance()->forceSync(CONTENT_INDEX_DATABASE_STATE);
+    GlobalSettings::getInstance()->forceSync(INDEX_GENERATOR_NORMAL_EXIT);
+    GlobalSettings::getInstance()->forceSync(INOTIFY_NORMAL_EXIT);
 
 
     qDebug() << "indexDataBaseStatus: " << GlobalSettings::getInstance()->getValue(INDEX_DATABASE_STATE).toString();
     qDebug() << "contentIndexDataBaseStatus: " << GlobalSettings::getInstance()->getValue(CONTENT_INDEX_DATABASE_STATE).toString();
-    _exit(0);
+
+    ::exit(0);
 
 //    InotifyIndex::getInstance("/home")->~InotifyIndex();