diff --git a/source/dnode/mnode/impl/src/mndFunc.c b/source/dnode/mnode/impl/src/mndFunc.c
index 31f31a15ba..244e6058d4 100644
--- a/source/dnode/mnode/impl/src/mndFunc.c
+++ b/source/dnode/mnode/impl/src/mndFunc.c
@@ -293,7 +293,7 @@ static int32_t mndProcessCreateFuncReq(SRpcMsg *pReq) {
     goto _OVER;
   }
 
-  mInfo("func:%s, start to create", createReq.name);
+  mInfo("func:%s, start to create, size:%d", createReq.name, createReq.codeLen);
   if (mndCheckOperPrivilege(pMnode, pReq->info.conn.user, MND_OPER_CREATE_FUNC) != 0) {
     goto _OVER;
   }
diff --git a/source/dnode/mnode/sdb/src/sdbFile.c b/source/dnode/mnode/sdb/src/sdbFile.c
index 9e830b83e6..c2d7a9757a 100644
--- a/source/dnode/mnode/sdb/src/sdbFile.c
+++ b/source/dnode/mnode/sdb/src/sdbFile.c
@@ -228,11 +228,12 @@ static int32_t sdbReadFileImp(SSdb *pSdb) {
   int32_t readLen = 0;
   int64_t ret = 0;
   char    file[PATH_MAX] = {0};
+  int32_t bufLen = TSDB_MAX_MSG_SIZE;
 
   snprintf(file, sizeof(file), "%s%ssdb.data", pSdb->currDir, TD_DIRSEP);
   mInfo("start to read sdb file:%s", file);
 
-  SSdbRaw *pRaw = taosMemoryMalloc(TSDB_MAX_MSG_SIZE + 100);
+  SSdbRaw *pRaw = taosMemoryMalloc(bufLen + 100);
   if (pRaw == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     mError("failed read sdb file since %s", terrstr());
@@ -275,14 +276,15 @@ static int32_t sdbReadFileImp(SSdb *pSdb) {
     }
 
     readLen = pRaw->dataLen + sizeof(int32_t);
-    if (readLen >= pRaw->dataLen) {
-      SSdbRaw *pNewRaw = taosMemoryMalloc(pRaw->dataLen + TSDB_MAX_MSG_SIZE);
+    if (readLen >= bufLen) {
+      bufLen = pRaw->dataLen * 2;
+      SSdbRaw *pNewRaw = taosMemoryMalloc(bufLen + 100);
       if (pNewRaw == NULL) {
         terrno = TSDB_CODE_OUT_OF_MEMORY;
-        mError("failed read sdb file since malloc new sdbRaw size:%d failed", pRaw->dataLen + TSDB_MAX_MSG_SIZE);
+        mError("failed read sdb file since malloc new sdbRaw size:%d failed", bufLen);
         goto _OVER;
       }
-      mInfo("malloc new sdbRaw size:%d, type:%d", pRaw->dataLen + TSDB_MAX_MSG_SIZE, pRaw->type);
+      mInfo("malloc new sdb raw size:%d, type:%d", bufLen, pRaw->type);
       memcpy(pNewRaw, pRaw, sizeof(SSdbRaw));
       sdbFreeRaw(pRaw);
       pRaw = pNewRaw;