diff --git a/examples/rust b/examples/rust
new file mode 160000
index 0000000000000000000000000000000000000000..7ed7a97715388fa144718764d6bf20f9bfc29a12
--- /dev/null
+++ b/examples/rust
@@ -0,0 +1 @@
+Subproject commit 7ed7a97715388fa144718764d6bf20f9bfc29a12
diff --git a/source/dnode/mgmt/node_mgmt/src/dmTransport.c b/source/dnode/mgmt/node_mgmt/src/dmTransport.c
index 7efa46c514373fbc2e315ef6c82a640ad8a309aa..a059db6b00b7896289346eae0016dedfe95db400 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmTransport.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmTransport.c
@@ -255,7 +255,8 @@ static inline void dmReleaseHandle(SRpcHandleInfo *pHandle, int8_t type) {
 static bool rpcRfp(int32_t code, tmsg_t msgType) {
   if (code == TSDB_CODE_RPC_REDIRECT || code == TSDB_CODE_RPC_NETWORK_UNAVAIL || code == TSDB_CODE_NODE_NOT_DEPLOYED ||
       code == TSDB_CODE_SYN_NOT_LEADER || code == TSDB_CODE_APP_NOT_READY || code == TSDB_CODE_RPC_BROKEN_LINK) {
-    if (msgType == TDMT_SCH_QUERY || msgType == TDMT_SCH_MERGE_QUERY || msgType == TDMT_SCH_FETCH || msgType == TDMT_SCH_MERGE_FETCH) {
+    if (msgType == TDMT_SCH_QUERY || msgType == TDMT_SCH_MERGE_QUERY || msgType == TDMT_SCH_FETCH ||
+        msgType == TDMT_SCH_MERGE_FETCH) {
       return false;
     }
     return true;
diff --git a/source/dnode/vnode/src/vnd/vnodeSync.c b/source/dnode/vnode/src/vnd/vnodeSync.c
index d819cf92b7ed114437677002e1a092e50af9eee4..cea0fc0029f4da444d00278396adecf8330c437e 100644
--- a/source/dnode/vnode/src/vnd/vnodeSync.c
+++ b/source/dnode/vnode/src/vnd/vnodeSync.c
@@ -141,6 +141,10 @@ static void inline vnodeHandleWriteMsg(SVnode *pVnode, SRpcMsg *pMsg) {
   }
   if (rsp.info.handle != NULL) {
     tmsgSendRsp(&rsp);
+  } else {
+    if (rsp.pCont) {
+      rpcFreeCont(rsp.pCont);
+    }
   }
 }
 
diff --git a/tools/taos-tools b/tools/taos-tools
new file mode 160000
index 0000000000000000000000000000000000000000..3c7dafeea3e558968165b73bee0f51024898e3da
--- /dev/null
+++ b/tools/taos-tools
@@ -0,0 +1 @@
+Subproject commit 3c7dafeea3e558968165b73bee0f51024898e3da