diff --git a/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h b/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h
index 51b3860461..5d8ec50e81 100644
--- a/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h
+++ b/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h
@@ -46,8 +46,6 @@ typedef struct {
   int32_t  vgId;
   int32_t  vgVersion;
   int8_t   dropped;
-  uint64_t dbUid;
-  char     db[TSDB_DB_FNAME_LEN];
   char     path[PATH_MAX + 20];
 } SWrapperCfg;
 
@@ -57,8 +55,6 @@ typedef struct {
   int32_t       vgVersion;
   int8_t        dropped;
   int8_t        accessState;
-  uint64_t      dbUid;
-  char         *db;
   char         *path;
   SVnode       *pImpl;
   STaosQueue   *pWriteQ;
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmFile.c b/source/dnode/mgmt/mgmt_vnode/src/vmFile.c
index f251dd120e..ba4293eeb2 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmFile.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmFile.c
@@ -47,7 +47,7 @@ SVnodeObj **vmGetVnodeListFromHash(SVnodesMgmt *pMgmt, int32_t *numOfVnodes) {
 int32_t vmGetVnodeListFromFile(SVnodesMgmt *pMgmt, SWrapperCfg **ppCfgs, int32_t *numOfVnodes) {
   int32_t      code = TSDB_CODE_INVALID_JSON_FORMAT;
   int32_t      len = 0;
-  int32_t      maxLen = 30000;
+  int32_t      maxLen = 1024 * 1024;
   char        *content = taosMemoryCalloc(1, maxLen + 1);
   cJSON       *root = NULL;
   FILE        *fp = NULL;
@@ -64,6 +64,11 @@ int32_t vmGetVnodeListFromFile(SVnodesMgmt *pMgmt, SWrapperCfg **ppCfgs, int32_t
     goto _OVER;
   }
 
+  if (content == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return -1;
+  }
+
   len = (int32_t)taosReadFile(pFile, content, maxLen);
   if (len <= 0) {
     dError("failed to read %s since content is null", file);
@@ -116,20 +121,6 @@ int32_t vmGetVnodeListFromFile(SVnodesMgmt *pMgmt, SWrapperCfg **ppCfgs, int32_t
         goto _OVER;
       }
       pCfg->vgVersion = vgVersion->valueint;
-
-      cJSON *dbUid = cJSON_GetObjectItem(vnode, "dbUid");
-      if (!dbUid || dbUid->type != cJSON_String) {
-        dError("failed to read %s since dbUid not found", file);
-        goto _OVER;
-      }
-      pCfg->dbUid = atoll(dbUid->valuestring);
-
-      cJSON *db = cJSON_GetObjectItem(vnode, "db");
-      if (!db || db->type != cJSON_String) {
-        dError("failed to read %s since db not found", file);
-        goto _OVER;
-      }
-      tstrncpy(pCfg->db, db->valuestring, TSDB_DB_FNAME_LEN);
     }
 
     *ppCfgs = pCfgs;
@@ -165,8 +156,12 @@ int32_t vmWriteVnodeListToFile(SVnodesMgmt *pMgmt) {
   SVnodeObj **pVnodes = vmGetVnodeListFromHash(pMgmt, &numOfVnodes);
 
   int32_t len = 0;
-  int32_t maxLen = 65536;
+  int32_t maxLen = 1024 * 1024;
   char   *content = taosMemoryCalloc(1, maxLen + 1);
+  if (content == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return -1;
+  }
 
   len += snprintf(content + len, maxLen - len, "{\n");
   len += snprintf(content + len, maxLen - len, "  \"vnodes\": [\n");
@@ -175,9 +170,7 @@ int32_t vmWriteVnodeListToFile(SVnodesMgmt *pMgmt) {
     len += snprintf(content + len, maxLen - len, "    {\n");
     len += snprintf(content + len, maxLen - len, "      \"vgId\": %d,\n", pVnode->vgId);
     len += snprintf(content + len, maxLen - len, "      \"dropped\": %d,\n", pVnode->dropped);
-    len += snprintf(content + len, maxLen - len, "      \"vgVersion\": %d,\n", pVnode->vgVersion);
-    len += snprintf(content + len, maxLen - len, "      \"dbUid\": \"%" PRIu64 "\",\n", pVnode->dbUid);
-    len += snprintf(content + len, maxLen - len, "      \"db\": \"%s\"\n", pVnode->db);
+    len += snprintf(content + len, maxLen - len, "      \"vgVersion\": %d\n", pVnode->vgVersion);
     if (i < numOfVnodes - 1) {
       len += snprintf(content + len, maxLen - len, "    },\n");
     } else {
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
index 914acce2ea..be4cfb95e2 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
@@ -174,8 +174,6 @@ static void vmGenerateWrapperCfg(SVnodesMgmt *pMgmt, SCreateVnodeReq *pCreate, S
   pCfg->vgId = pCreate->vgId;
   pCfg->vgVersion = pCreate->vgVersion;
   pCfg->dropped = 0;
-  pCfg->dbUid = pCreate->dbUid;
-  tstrncpy(pCfg->db, pCreate->db, TSDB_DB_FNAME_LEN);
   snprintf(pCfg->path, sizeof(pCfg->path), "%s%svnode%d", pMgmt->path, TD_DIRSEP, pCreate->vgId);
 }
 
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmInt.c b/source/dnode/mgmt/mgmt_vnode/src/vmInt.c
index af439fcc03..9a0a524267 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmInt.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmInt.c
@@ -57,13 +57,11 @@ int32_t vmOpenVnode(SVnodesMgmt *pMgmt, SWrapperCfg *pCfg, SVnode *pImpl) {
   pVnode->vgVersion = pCfg->vgVersion;
   pVnode->dropped = 0;
   pVnode->accessState = TSDB_VN_ALL_ACCCESS;
-  pVnode->dbUid = pCfg->dbUid;
-  pVnode->db = tstrdup(pCfg->db);
   pVnode->path = tstrdup(pCfg->path);
   pVnode->pImpl = pImpl;
   pVnode->pWrapper = pMgmt->pWrapper;
 
-  if (pVnode->path == NULL || pVnode->db == NULL) {
+  if (pVnode->path == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return -1;
   }
@@ -109,7 +107,6 @@ void vmCloseVnode(SVnodesMgmt *pMgmt, SVnodeObj *pVnode) {
   }
 
   taosMemoryFree(pVnode->path);
-  taosMemoryFree(pVnode->db);
   taosMemoryFree(pVnode);
 }