diff --git a/Jenkinsfile b/Jenkinsfile
index 28f1cb0bc0..e6e8a1df32 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -41,6 +41,7 @@ def pre_test(){
     sh '''
     killall -9 taosd ||echo "no taosd running"
     killall -9 gdb || echo "no gdb running"
+    killall -9 python3.8 || echo "no python program running"
     cd ${WKC}
     git reset --hard HEAD~10 >/dev/null
     '''
@@ -223,24 +224,27 @@ pipeline {
           steps {
             pre_test()
             catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
-                sh '''
-                cd ${WKC}/tests/pytest
-                ./crash_gen.sh -a -p -t 4 -s 2000
-                '''
+                timeout(time: 60, unit: 'MINUTES'){
+                  sh '''
+                  cd ${WKC}/tests/pytest
+                  ./crash_gen.sh -a -p -t 4 -s 2000
+                  '''
+                }
+            }
+            timeout(time: 60, unit: 'MINUTES'){
+              sh '''
+              cd ${WKC}/tests/pytest
+              rm -rf /var/lib/taos/*
+              rm -rf /var/log/taos/*
+              ./handle_crash_gen_val_log.sh
+              '''
+              sh '''
+              cd ${WKC}/tests/pytest
+              rm -rf /var/lib/taos/*
+              rm -rf /var/log/taos/*
+              ./handle_taosd_val_log.sh
+              '''
             }
-
-            sh '''
-            cd ${WKC}/tests/pytest
-            rm -rf /var/lib/taos/*
-            rm -rf /var/log/taos/*
-            ./handle_crash_gen_val_log.sh
-            '''
-            sh '''
-            cd ${WKC}/tests/pytest
-            rm -rf /var/lib/taos/*
-            rm -rf /var/log/taos/*
-            ./handle_taosd_val_log.sh
-            '''
             timeout(time: 45, unit: 'MINUTES'){
                 sh '''
                 date
diff --git a/src/mnode/src/mnodeWrite.c b/src/mnode/src/mnodeWrite.c
index c0699b05b3..9a993dfaaf 100644
--- a/src/mnode/src/mnodeWrite.c
+++ b/src/mnode/src/mnodeWrite.c
@@ -65,7 +65,14 @@ int32_t mnodeProcessWrite(SMnodeMsg *pMsg) {
     return TSDB_CODE_MND_MSG_NOT_PROCESSED;
   }
 
-  int32_t code = mnodeInitMsg(pMsg);
+  int32_t code = grantCheck(TSDB_GRANT_TIME);
+  if (code != TSDB_CODE_SUCCESS) {
+    mError("msg:%p, app:%p type:%s not processed, reason:%s", pMsg, pMsg->rpcMsg.ahandle, taosMsg[pMsg->rpcMsg.msgType],
+           tstrerror(code));
+    return code;
+  }
+
+  code = mnodeInitMsg(pMsg);
   if (code != TSDB_CODE_SUCCESS) {
     mError("msg:%p, app:%p type:%s not processed, reason:%s", pMsg, pMsg->rpcMsg.ahandle, taosMsg[pMsg->rpcMsg.msgType],
            tstrerror(code));