diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index f1f4db726527b71128d637406fae305272a2513d..5462e2f468d1b2b5f0d7d67f17b202e118b56f3b 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -199,6 +199,9 @@ int32_t sDebugFlag = 135;
 int32_t wDebugFlag = 135;
 int32_t tsdbDebugFlag = 131;
 
+int32_t (*monitorStartSystemFp)() = NULL;
+void (*monitorStopSystemFp)() = NULL;
+
 static pthread_once_t tsInitGlobalCfgOnce = PTHREAD_ONCE_INIT;
 
 void taosSetAllDebugFlag() {
@@ -248,11 +251,17 @@ bool taosCfgDynamicOptions(char *msg) {
     *((int32_t *)cfg->ptr) = vint;
 
     if (strncasecmp(cfg->option, "monitor", olen) == 0) {
-      // if (0 == vint) {
-      //   monitorStartSystem();
-      // } else {
-      //   monitorStopSystem();
-      // }
+      if (1 == vint) {
+        if (monitorStartSystemFp) {
+          (*monitorStartSystemFp)();
+          uInfo("monitor is enabled");
+        }
+      } else {
+        if (monitorStopSystemFp) {
+          (*monitorStopSystemFp)();
+          uInfo("monitor is disabled");
+        }
+      }
       return true;
     }
 
diff --git a/src/mnode/src/mnodeDnode.c b/src/mnode/src/mnodeDnode.c
index 06d79bd7e11eca1f8381777667e5d4844be8b440..28986d68868b1cbda7dc752ac0a1c98ce53bb8b7 100644
--- a/src/mnode/src/mnodeDnode.c
+++ b/src/mnode/src/mnodeDnode.c
@@ -452,10 +452,23 @@ static int32_t mnodeCreateDnode(char *ep, SMnodeMsg *pMsg) {
     return grantCode;
   }
 
+  char dnodeEp[TSDB_EP_LEN] = {0};
+  tstrncpy(dnodeEp, ep, TSDB_EP_LEN);
+  strtrim(dnodeEp);
+
+  char *temp = strchr(dnodeEp, ':');
+  if (!temp) {
+    int len = strlen(dnodeEp);
+    if (dnodeEp[len - 1] == ';') dnodeEp[len - 1] = 0;
+    len = strlen(dnodeEp);
+    snprintf(dnodeEp + len, TSDB_EP_LEN - len, ":%d", tsServerPort);
+  }
+  ep = dnodeEp;
+
   SDnodeObj *pDnode = mnodeGetDnodeByEp(ep);
   if (pDnode != NULL) {
     mnodeDecDnodeRef(pDnode);
-    mError("dnode:%d is alredy exist, %s:%d", pDnode->dnodeId, pDnode->dnodeFqdn, pDnode->dnodePort);
+    mError("dnode:%d is already exist, %s:%d", pDnode->dnodeId, pDnode->dnodeFqdn, pDnode->dnodePort);
     return TSDB_CODE_MND_DNODE_ALREADY_EXIST;
   }
 
@@ -507,8 +520,12 @@ int32_t mnodeDropDnode(SDnodeObj *pDnode, void *pMsg) {
 static int32_t mnodeDropDnodeByEp(char *ep, SMnodeMsg *pMsg) {
   SDnodeObj *pDnode = mnodeGetDnodeByEp(ep);
   if (pDnode == NULL) {
-    mError("dnode:%s, is not exist", ep);
-    return TSDB_CODE_MND_DNODE_NOT_EXIST;
+    int32_t dnodeId = (int32_t)strtol(ep, NULL, 10);
+    pDnode = mnodeGetDnode(dnodeId);
+    if (pDnode == NULL) {
+      mError("dnode:%s, is not exist", ep);
+      return TSDB_CODE_MND_DNODE_NOT_EXIST;
+    }
   }
 
   if (strcmp(pDnode->dnodeEp, mnodeGetMnodeMasterEp()) == 0) {
diff --git a/src/plugins/monitor/src/monitorMain.c b/src/plugins/monitor/src/monitorMain.c
index 22cb111b83dc55b7abc46b301c423ded5a9155b9..e6e8cf982b0c5b7912742e4603f065d6ac404c31 100644
--- a/src/plugins/monitor/src/monitorMain.c
+++ b/src/plugins/monitor/src/monitorMain.c
@@ -76,6 +76,8 @@ static void monitorInitDatabase();
 static void monitorInitDatabaseCb(void *param, TAOS_RES *result, int32_t code);
 static void monitorStartTimer();
 static void monitorSaveSystemInfo();
+extern int32_t (*monitorStartSystemFp)();
+extern void (*monitorStopSystemFp)();
 
 static void monitorCheckDiskUsage(void *para, void *unused) {
   taosGetDisk();
@@ -85,6 +87,8 @@ static void monitorCheckDiskUsage(void *para, void *unused) {
 int32_t monitorInitSystem() {
   taos_init();
   taosTmrReset(monitorCheckDiskUsage, CHECK_INTERVAL, NULL, tscTmr, &tsMonitorConn.diskTimer);
+  monitorStartSystemFp = monitorStartSystem;
+  monitorStopSystemFp = monitorStopSystem;
   return 0;
 }
 
diff --git a/tests/tsim/src/simExe.c b/tests/tsim/src/simExe.c
index 7826735c2f1d81bb783bcd71039a7f1c2ea4caf0..3febb927c443decd99889a7a4f12c5ee264c785f 100644
--- a/tests/tsim/src/simExe.c
+++ b/tests/tsim/src/simExe.c
@@ -21,7 +21,7 @@
 #include "tutil.h"
 #include "cJSON.h"
 
-void simLogSql(char *sql) {
+void simLogSql(char *sql, bool useSharp) {
   static FILE *fp = NULL;
   char filename[256];
   sprintf(filename, "%s/sim.sql", tsScriptDir);
@@ -32,7 +32,12 @@ void simLogSql(char *sql) {
       return;
     }
   }
-  fprintf(fp, "%s;\n", sql);
+  if (useSharp) {
+    fprintf(fp, "# %s;\n", sql);
+  } else {
+    fprintf(fp, "%s;\n", sql);
+  }
+  
   fflush(fp);
 }
 
@@ -300,6 +305,7 @@ bool simExecuteSystemCmd(SScript *script, char *option) {
   sprintf(buf, "cd %s; ", tsScriptDir);
   simVisuallizeOption(script, option, buf + strlen(buf));
 
+  simLogSql(buf, true);
   int code = system(buf);
   int repeatTimes = 0;
   while (code < 0) {
@@ -372,6 +378,10 @@ bool simExecuteSleepCmd(SScript *script, char *option) {
   taosMsleep(delta);
   simInfo("script:%s, sleep %dms finished", script->fileName, delta);
 
+  char sleepStr[32] = {0};
+  sprintf(sleepStr, "sleep %d", delta);
+  simLogSql(sleepStr, true);
+
   script->linePos++;
   return true;
 }
@@ -655,7 +665,7 @@ bool simExecuteNativeSqlCommand(SScript *script, char *rest, bool isSlow) {
   TAOS_RES* pSql = NULL;
   
   for (int attempt = 0; attempt < 3; ++attempt) {
-    simLogSql(rest);
+    simLogSql(rest, false);
     pSql = taos_query(script->taos, rest);
     ret = taos_errno(pSql);