diff --git a/src/rpc/src/rpcTcp.c b/src/rpc/src/rpcTcp.c
index affddf0520..7b8cf3cda2 100644
--- a/src/rpc/src/rpcTcp.c
+++ b/src/rpc/src/rpcTcp.c
@@ -173,6 +173,9 @@ void *taosInitTcpServer(uint32_t ip, uint16_t port, char *label, int numOfThread
 static void taosStopTcpThread(SThreadObj* pThreadObj) {
   // save thread into local variable and signal thread to stop 
   pthread_t thread = pThreadObj->thread; 
+  if (!taosCheckPthreadValid(thread)) {
+    return;
+  }
   pThreadObj->stop = true;
   if (taosComparePthread(thread, pthread_self())) {
     pthread_detach(pthread_self());
diff --git a/src/sync/src/taosTcpPool.c b/src/sync/src/taosTcpPool.c
index 3be2989342..875528e66b 100644
--- a/src/sync/src/taosTcpPool.c
+++ b/src/sync/src/taosTcpPool.c
@@ -302,6 +302,9 @@ static SThreadObj *taosGetTcpThread(SPoolObj *pPool) {
 
 static void taosStopPoolThread(SThreadObj *pThread) {
   pthread_t thread = pThread->thread;
+  if (!taosCheckPthreadValid(thread)) {
+    return;
+  }
   pThread->stop = true;
   if (taosComparePthread(thread, pthread_self())) {
     pthread_detach(pthread_self());