diff --git a/src/dnode/src/dnodeMgmt.c b/src/dnode/src/dnodeMgmt.c
index 789a98f78edb34b822cd8780adb2ef8d4d30aa61..d35e82fa47232b2d323d80721a9f08f1115d3ee1 100644
--- a/src/dnode/src/dnodeMgmt.c
+++ b/src/dnode/src/dnodeMgmt.c
@@ -572,6 +572,7 @@ static void dnodeSaveMnodeInfos() {
   len += snprintf(content + len, maxLen - len, "}\n"); 
 
   fwrite(content, 1, len, fp);
+  fflush(fp);
   fclose(fp);
   free(content);
   
@@ -694,6 +695,7 @@ static void dnodeSaveDnodeCfg() {
   len += snprintf(content + len, maxLen - len, "}\n"); 
 
   fwrite(content, 1, len, fp);
+  fflush(fp);
   fclose(fp);
   free(content);
   
diff --git a/src/vnode/src/vnodeMain.c b/src/vnode/src/vnodeMain.c
index b952c07616a593d3301a81f99de829cfa739d9d3..67ba891f93237399b11ce53b8e9ea6ae06cfa582 100644
--- a/src/vnode/src/vnodeMain.c
+++ b/src/vnode/src/vnodeMain.c
@@ -553,6 +553,7 @@ static int32_t vnodeSaveCfg(SMDCreateVnodeMsg *pVnodeCfg) {
   len += snprintf(content + len, maxLen - len, "}\n");
 
   fwrite(content, 1, len, fp);
+  fflush(fp);
   fclose(fp);
   free(content);