diff --git a/.travis.yml b/.travis.yml
index 4d7a809e29..6a4acce451 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -63,7 +63,7 @@ matrix:
           pkill -TERM -x taosd
           fuser -k -n tcp 6030
           sleep 1
-          ./crash_gen.sh -a -p -t 4 -s 25|| travis_terminate $?
+          ./crash_gen.sh -a -p -t 4 -s 2000|| travis_terminate $?
           sleep 1
 
           cd ${TRAVIS_BUILD_DIR}/tests/pytest
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 09db65a105..32d44dfb81 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -358,7 +358,7 @@ int32_t tscToSQLCmd(SSqlObj* pSql, struct SSqlInfo* pInfo) {
     }
 
     case TSDB_SQL_CFG_DNODE: {
-      const char* msg2 = "invalid configure options or values";
+      const char* msg2 = "invalid configure options or values, such as resetlog / debugFlag 135 / balance 'vnode:1-dnode:2' / monitor 1 ";
       const char* msg3 = "invalid dnode ep";
 
       /* validate the ip address */
@@ -4674,26 +4674,42 @@ int32_t validateDNodeConfig(tDCLSQL* pOptions) {
     return TSDB_CODE_TSC_INVALID_SQL;
   }
 
-  const int DNODE_DYNAMIC_CFG_OPTIONS_SIZE = 19;
-  const SDNodeDynConfOption DNODE_DYNAMIC_CFG_OPTIONS[] = {
-      {"resetLog", 8},       {"resetQueryCache", 15},  {"debugFlag", 9},     {"mDebugFlag", 10},
-      {"dDebugFlag", 10},    {"sdbDebugFlag", 12},     {"vDebugFlag", 10},   {"cDebugFlag", 10},
-      {"httpDebugFlag", 13}, {"monitorDebugFlag", 16}, {"rpcDebugFlag", 12}, {"uDebugFlag", 10},
-      {"tmrDebugFlag", 12},  {"qDebugflag", 10},       {"sDebugflag", 10},   {"tsdbDebugFlag", 13},
-      {"mqttDebugFlag", 13}, {"wDebugFlag", 10},       {"monitor", 7}};
+  const int tokenLogEnd = 2;
+  const int tokenBalance = 2;
+  const int tokenMonitor = 3;
+  const int tokenDebugFlag = 4;
+  const int tokenDebugFlagEnd = 20;
+  const SDNodeDynConfOption cfgOptions[] = {
+      {"resetLog", 8},    {"resetQueryCache", 15},  {"balance", 7},     {"monitor", 7},
+      {"debugFlag", 9},   {"monitorDebugFlag", 16}, {"vDebugFlag", 10}, {"mDebugFlag", 10},
+      {"cDebugFlag", 10}, {"httpDebugFlag", 13},    {"qDebugflag", 10}, {"sdbDebugFlag", 12},
+      {"uDebugFlag", 10}, {"tsdbDebugFlag", 13},    {"sDebugflag", 10}, {"rpcDebugFlag", 12},
+      {"dDebugFlag", 10}, {"mqttDebugFlag", 13},    {"wDebugFlag", 10}, {"tmrDebugFlag", 12},
+  };
 
   SSQLToken* pOptionToken = &pOptions->a[1];
 
   if (pOptions->nTokens == 2) {
     // reset log and reset query cache does not need value
-    for (int32_t i = 0; i < 2; ++i) {
-      const SDNodeDynConfOption* pOption = &DNODE_DYNAMIC_CFG_OPTIONS[i];
+    for (int32_t i = 0; i < tokenLogEnd; ++i) {
+      const SDNodeDynConfOption* pOption = &cfgOptions[i];
       if ((strncasecmp(pOption->name, pOptionToken->z, pOptionToken->n) == 0) && (pOption->len == pOptionToken->n)) {
         return TSDB_CODE_SUCCESS;
       }
     }
-  } else if ((strncasecmp(DNODE_DYNAMIC_CFG_OPTIONS[DNODE_DYNAMIC_CFG_OPTIONS_SIZE - 1].name, pOptionToken->z, pOptionToken->n) == 0) &&
-             (DNODE_DYNAMIC_CFG_OPTIONS[DNODE_DYNAMIC_CFG_OPTIONS_SIZE - 1].len == pOptionToken->n)) {
+  } else if ((strncasecmp(cfgOptions[tokenBalance].name, pOptionToken->z, pOptionToken->n) == 0) &&
+             (cfgOptions[tokenBalance].len == pOptionToken->n)) {
+    SSQLToken* pValToken = &pOptions->a[2];
+    int32_t vnodeIndex = 0;
+    int32_t dnodeIndex = 0;
+    strdequote(pValToken->z);
+    bool parseOk = taosCheckBalanceCfgOptions(pValToken->z, &vnodeIndex, &dnodeIndex);
+    if (!parseOk) {
+      return TSDB_CODE_TSC_INVALID_SQL;  // options value is invalid
+    }
+    return TSDB_CODE_SUCCESS;
+  } else if ((strncasecmp(cfgOptions[tokenMonitor].name, pOptionToken->z, pOptionToken->n) == 0) &&
+             (cfgOptions[tokenMonitor].len == pOptionToken->n)) {
     SSQLToken* pValToken = &pOptions->a[2];
     int32_t    val = strtol(pValToken->z, NULL, 10);
     if (val != 0 && val != 1) {
@@ -4709,8 +4725,8 @@ int32_t validateDNodeConfig(tDCLSQL* pOptions) {
       return TSDB_CODE_TSC_INVALID_SQL;
     }
 
-    for (int32_t i = 2; i < DNODE_DYNAMIC_CFG_OPTIONS_SIZE - 1; ++i) {
-      const SDNodeDynConfOption* pOption = &DNODE_DYNAMIC_CFG_OPTIONS[i];
+    for (int32_t i = tokenDebugFlag; i < tokenDebugFlagEnd; ++i) {
+      const SDNodeDynConfOption* pOption = &cfgOptions[i];
 
       if ((strncasecmp(pOption->name, pOptionToken->z, pOptionToken->n) == 0) && (pOption->len == pOptionToken->n)) {
         /* options is valid */
diff --git a/src/common/inc/tglobal.h b/src/common/inc/tglobal.h
index 6506707457..7ba96ceb60 100644
--- a/src/common/inc/tglobal.h
+++ b/src/common/inc/tglobal.h
@@ -174,6 +174,7 @@ bool taosCheckGlobalCfg();
 void taosSetAllDebugFlag();
 bool taosCfgDynamicOptions(char *msg);
 int  taosGetFqdnPortFromEp(const char *ep, char *fqdn, uint16_t *port);
+bool taosCheckBalanceCfgOptions(const char *option, int32_t *vnodeIndex, int32_t *dnodeIndex);
  
 #ifdef __cplusplus
 }
diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index 56c63ee49d..c79b016b93 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -198,6 +198,7 @@ int32_t tsdbDebugFlag = 131;
 
 int32_t (*monitorStartSystemFp)() = NULL;
 void (*monitorStopSystemFp)() = NULL;
+void (*monitorExecuteSQLFp)(char *sql) = NULL;
 
 static pthread_once_t tsInitGlobalCfgOnce = PTHREAD_ONCE_INIT;
 
@@ -252,11 +253,15 @@ bool taosCfgDynamicOptions(char *msg) {
         if (monitorStartSystemFp) {
           (*monitorStartSystemFp)();
           uInfo("monitor is enabled");
+        } else {
+          uError("monitor can't be updated, for monitor not initialized");
         }
       } else {
         if (monitorStopSystemFp) {
           (*monitorStopSystemFp)();
           uInfo("monitor is disabled");
+        } else {
+          uError("monitor can't be updated, for monitor not initialized");
         }
       }
       return true;
@@ -276,7 +281,12 @@ bool taosCfgDynamicOptions(char *msg) {
   }
 
   if (strncasecmp(option, "resetQueryCache", 15) == 0) {
-    uError("reset query cache can't be executed, for monitor not initialized");
+    if (monitorExecuteSQLFp) {
+      (*monitorExecuteSQLFp)("resetQueryCache");
+      uInfo("resetquerycache is executed");
+    } else {
+      uError("resetquerycache can't be executed, for monitor not started");
+    }
   }
 
   return false;
@@ -1300,3 +1310,32 @@ int taosGetFqdnPortFromEp(const char *ep, char *fqdn, uint16_t *port) {
 
   return 0; 
 }
+
+/*
+ * alter dnode 1 balance "vnode:1-dnode:2"
+ */
+
+bool taosCheckBalanceCfgOptions(const char *option, int32_t *vnodeIndex, int32_t *dnodeIndex) {
+  int len = strlen(option);
+  if (strncasecmp(option, "vnode:", 6) != 0) {
+    return false;
+  }
+
+  int pos = 0;
+  for (; pos < len; ++pos) {
+    if (option[pos] == '-') break;
+  }
+
+  if (++pos >= len) return false;
+  if (strncasecmp(option + pos, "dnode:", 6) != 0) {
+    return false;
+  }
+
+  *vnodeIndex = strtol(option + 6, NULL, 10);
+  *dnodeIndex = strtol(option + pos + 6, NULL, 10);
+  if (*vnodeIndex <= 1 || *dnodeIndex <= 0) {
+    return false;
+  }
+
+  return true;
+}
\ No newline at end of file
diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/TDNode.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/TDNode.java
index df25076a95..800265868d 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/TDNode.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/TDNode.java
@@ -1,6 +1,8 @@
 package com.taosdata.jdbc.utils;
 
+import java.io.BufferedReader;
 import java.io.File;
+import java.io.InputStreamReader;
 import java.util.*;
 import java.util.concurrent.TimeUnit;
 
@@ -31,6 +33,10 @@ public class TDNode {
         this.testCluster = testCluster;
     }
 
+    public void setRunning(int running) {
+        this.running = running;
+    }
+
     public void searchTaosd(File dir, ArrayList<String> taosdPath) {        
         File[] fileList = dir.listFiles();
         
@@ -102,15 +108,46 @@ public class TDNode {
         this.running = 1;        
     }
 
-    public void stop() {
-        String toBeKilled = "taosd";
+    public Integer getTaosdPid() {
+        String cmd = "ps -ef|grep -w taosd| grep -v grep | awk '{print $2}'"; 
+        String[] cmds = {"sh", "-c", cmd};
+        try {
+            Process process = Runtime.getRuntime().exec(cmds);
+            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+            String line = null;
+            Integer res = null;
+            while((line = reader.readLine()) != null) {
+                if(!line.isEmpty()) {
+                    res = Integer.valueOf(line);
+                    break;
+                }
+            }
+            
+            return res;
+        } catch (Exception e) {
+            e.printStackTrace();
+        } 
+        return null;
+    }
+
+    public void stop() {        
 
         if (this.running != 0) {
-            String killCmd = "pkill -kill -x " + toBeKilled;
-            String[] killCmds = {"sh", "-c", killCmd};
-            try {                                
-                Runtime.getRuntime().exec(killCmds).waitFor();
+            Integer pid = null;                        
+            while((pid = getTaosdPid()) != null) {
+                
+                String killCmd = "kill -term " + pid;                                      
+                String[] killCmds = {"sh", "-c", killCmd};
+                try {                                
+                    Runtime.getRuntime().exec(killCmds).waitFor();                    
 
+                    TimeUnit.SECONDS.sleep(2);
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }                
+            }
+
+            try {
                 for(int port = 6030; port < 6041; port ++) {
                     String fuserCmd = "fuser -k -n tcp " + port;
                     Runtime.getRuntime().exec(fuserCmd).waitFor();
@@ -120,7 +157,7 @@ public class TDNode {
             }
 
             this.running = 0;
-            System.out.println("dnode:" + this.index + " is stopped by pkill");
+            System.out.println("dnode:" + this.index + " is stopped by kill -term");
         }
     }
 
diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/TDNodes.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/TDNodes.java
index ea15ae9863..efc4c53e28 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/TDNodes.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/TDNodes.java
@@ -14,33 +14,6 @@ public class TDNodes {
         }               
     }
 
-    public void setPath(String path) {
-        try {
-            String killCmd = "pkill -kill -x taosd";
-            String[] killCmds = {"sh", "-c", killCmd};
-            Runtime.getRuntime().exec(killCmds).waitFor();        
-
-            String binPath = System.getProperty("user.dir");
-            binPath += "/../../../debug";
-            System.out.println("binPath: " + binPath);
-        
-            File file = new File(path);
-            binPath = file.getCanonicalPath();
-            System.out.println("binPath real path: " + binPath);
-                
-            if(path.isEmpty()){
-                file = new File(path + "/../../");                
-                path = file.getCanonicalPath();
-            }            
-
-            for(int i = 0; i < tdNodes.size(); i++) {
-                tdNodes.get(i).setPath(path);
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-    
     public void setTestCluster(boolean testCluster) {
         this.testCluster = testCluster;
     }
@@ -70,6 +43,11 @@ public class TDNodes {
         check(index);
         tdNodes.get(index - 1).setCfgConfig(option, value);
     }
+
+    public TDNode getTDNode(int index) {
+        check(index);
+        return tdNodes.get(index - 1);
+    }
     
     public void start(int index) {
         check(index);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java
index 5f105fb782..6c3437186f 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BaseTest.java
@@ -1,6 +1,5 @@
 package com.taosdata.jdbc;
 
-import java.io.File;
 import com.taosdata.jdbc.utils.TDNodes;
 
 import org.junit.AfterClass;
@@ -8,31 +7,30 @@ import org.junit.BeforeClass;
 
 public class BaseTest {
 
-    private static boolean testCluster = false;
-    private static String deployPath = System.getProperty("user.dir");         
-    private static TDNodes tdNodes = new TDNodes();    
+    private static boolean testCluster = false;           
+    private static TDNodes nodes = new TDNodes();    
     
     
     @BeforeClass
     public static void setupEnv() {
-        try{
-            File file = new File(deployPath + "/../../../");
-            String rootPath = file.getCanonicalPath();
-                       
-            tdNodes.setPath(rootPath);
-            tdNodes.setTestCluster(testCluster);            
+        try{                         
+            if (nodes.getTDNode(1).getTaosdPid() != null) {
+                System.out.println("Kill taosd before running JDBC test");
+                nodes.getTDNode(1).setRunning(1);
+                nodes.stop(1);
+            }
 
-            tdNodes.deploy(1);
-            tdNodes.start(1);  
+            nodes.setTestCluster(testCluster);  
+            nodes.deploy(1);
+            nodes.start(1);  
 
         } catch (Exception e) {
-            e.printStackTrace();
-            System.out.println("Base Test Exception");
+            e.printStackTrace();            
         }
     }
 
     @AfterClass
     public static void cleanUpEnv() {
-        tdNodes.stop(1);
+        nodes.stop(1);
     }
 }
\ No newline at end of file
diff --git a/src/inc/taoserror.h b/src/inc/taoserror.h
index 3503e39d31..59b2c0220b 100644
--- a/src/inc/taoserror.h
+++ b/src/inc/taoserror.h
@@ -227,6 +227,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_GRANT_CPU_LIMITED,            0, 0x080B, "grant cpu
 
 // sync
 TAOS_DEFINE_ERROR(TSDB_CODE_SYN_INVALID_CONFIG,           0, 0x0900, "sync invalid configuration")
+TAOS_DEFINE_ERROR(TSDB_CODE_SYN_NOT_ENABLED,              0, 0x0901, "sync module not enabled")
 
 // wal
 TAOS_DEFINE_ERROR(TSDB_CODE_WAL_APP_ERROR,                0, 0x1000, "wal app error")
diff --git a/src/inc/tbalance.h b/src/inc/tbalance.h
index c52f5afaaa..9ee8d73189 100644
--- a/src/inc/tbalance.h
+++ b/src/inc/tbalance.h
@@ -29,6 +29,7 @@ void    balanceAsyncNotify();
 void    balanceSyncNotify();
 void    balanceReset();
 int32_t balanceAllocVnodes(struct SVgObj *pVgroup);
+int32_t balanceCfgDnode(struct SDnodeObj *pDnode, const char *option);
 int32_t balanceDropDnode(struct SDnodeObj *pDnode);
 
 #ifdef __cplusplus
diff --git a/src/mnode/inc/mnodeDef.h b/src/mnode/inc/mnodeDef.h
index 3154a441ca..a454f413f0 100644
--- a/src/mnode/inc/mnodeDef.h
+++ b/src/mnode/inc/mnodeDef.h
@@ -50,8 +50,8 @@ typedef struct SDnodeObj {
   int8_t     alternativeRole;  // from dnode status msg, 0-any, 1-mgmt, 2-dnode
   int8_t     status;           // set in balance function
   int8_t     isMgmt;
-  int8_t     reserve1[14];  
-  int8_t     updateEnd[1];
+  int8_t     reserve1[11];  
+  int8_t     updateEnd[4];
   int32_t    refCount;
   uint32_t   moduleStatus;
   uint32_t   lastReboot;       // time stamp for last reboot
@@ -68,8 +68,8 @@ typedef struct SMnodeObj {
   int32_t    mnodeId;
   int8_t     reserved0[4];
   int64_t    createdTime;
-  int8_t     reserved1[7];
-  int8_t     updateEnd[1];
+  int8_t     reserved1[4];
+  int8_t     updateEnd[4];
   int32_t    refCount;
   int8_t     role;
   int8_t     reserved2[3];
@@ -90,8 +90,7 @@ typedef struct SSuperTableObj {
   int32_t    tversion;
   int32_t    numOfColumns;
   int32_t    numOfTags;
-  int8_t     reserved1[3];
-  int8_t     updateEnd[1];
+  int8_t     updateEnd[4];
   int32_t    refCount;
   int32_t    numOfTables;
   SSchema *  schema;
@@ -111,8 +110,7 @@ typedef struct {
   int32_t    sid;
   int32_t    vgId;
   int32_t    sqlLen;
-  int8_t     updateEnd[1];
-  int8_t     reserved1[1]; 
+  int8_t     updateEnd[4];
   int32_t    refCount;
   char*      sql;          //used by normal table
   SSchema*   schema;       //used by normal table
@@ -138,8 +136,8 @@ typedef struct SVgObj {
   int8_t         status;
   int8_t         reserved0[4];
   SVnodeGid      vnodeGid[TSDB_MAX_REPLICA];
-  int8_t         reserved1[7];
-  int8_t         updateEnd[1];
+  int8_t         reserved1[4];
+  int8_t         updateEnd[4];
   int32_t        refCount;
   int32_t        numOfTables;
   int64_t        totalStorage;
@@ -176,8 +174,8 @@ typedef struct SDbObj {
   int32_t cfgVersion;
   SDbCfg  cfg;
   int8_t  status;
-  int8_t  reserved1[14];
-  int8_t  updateEnd[1];
+  int8_t  reserved1[11];
+  int8_t  updateEnd[4];
   int32_t refCount;
   int32_t numOfVgroups;
   int32_t numOfTables;
@@ -196,8 +194,8 @@ typedef struct SUserObj {
   int64_t           createdTime;
   int8_t            superAuth;
   int8_t            writeAuth;
-  int8_t            reserved[13];
-  int8_t            updateEnd[1];
+  int8_t            reserved[10];
+  int8_t            updateEnd[4];
   int32_t           refCount;
   struct SAcctObj * pAcct;
 } SUserObj;
@@ -228,11 +226,11 @@ typedef struct SAcctObj {
   int64_t   createdTime;
   int32_t   acctId;
   int8_t    status;
-  int8_t    reserved0[10];
-  int8_t    updateEnd[1];
-  SAcctInfo acctInfo;
+  int8_t    reserved0[7];
+  int8_t    updateEnd[4];
   int32_t   refCount;
   int8_t    reserved1[4];
+  SAcctInfo acctInfo;
   pthread_mutex_t  mutex;
 } SAcctObj;
 
diff --git a/src/mnode/src/mnodeBalance.c b/src/mnode/src/mnodeBalance.c
index 23fc10d0bd..d2ec6dd36e 100644
--- a/src/mnode/src/mnodeBalance.c
+++ b/src/mnode/src/mnodeBalance.c
@@ -28,6 +28,7 @@ void    balanceCleanUp() {}
 void    balanceAsyncNotify() {}
 void    balanceSyncNotify() {}
 void    balanceReset() {}
+int32_t balanceCfgDnode(struct SDnodeObj *pDnode, const char *option) { return TSDB_CODE_SYN_NOT_ENABLED; }
 
 int32_t balanceAllocVnodes(SVgObj *pVgroup) {
   void *     pIter = NULL;
diff --git a/src/mnode/src/mnodeDb.c b/src/mnode/src/mnodeDb.c
index fb97d6f380..a159e98ed5 100644
--- a/src/mnode/src/mnodeDb.c
+++ b/src/mnode/src/mnodeDb.c
@@ -67,8 +67,11 @@ static int32_t mnodeDbActionInsert(SSdbOper *pOper) {
   SAcctObj *pAcct = mnodeGetAcct(pDb->acct);
 
   pthread_mutex_init(&pDb->mutex, NULL);
+  pthread_mutex_lock(&pDb->mutex);
   pDb->vgListSize = VG_LIST_SIZE;
   pDb->vgList = calloc(pDb->vgListSize, sizeof(SVgObj *));
+  pthread_mutex_unlock(&pDb->mutex);
+
   pDb->numOfVgroups = 0;
   pDb->numOfTables = 0;
   pDb->numOfSuperTables = 0;
@@ -395,8 +398,8 @@ static int32_t mnodeCreateDb(SAcctObj *pAcct, SCMCreateDbMsg *pCreate, void *pMs
 
   code = sdbInsertRow(&oper);
   if (code != TSDB_CODE_SUCCESS) {
-    mnodeDestroyDb(pDb);
     mLInfo("db:%s, failed to create, reason:%s", pDb->name, tstrerror(code));
+    mnodeDestroyDb(pDb);
     return code;
   } else {
     return TSDB_CODE_MND_ACTION_IN_PROGRESS;
@@ -605,7 +608,9 @@ static int32_t mnodeGetDbMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn
 
 static char *mnodeGetDbStr(char *src) {
   char *pos = strstr(src, TS_PATH_DELIMITER);
-  return ++pos;
+  if (pos != NULL) ++pos;
+
+  return pos;
 }
 
 static int32_t mnodeRetrieveDbs(SShowObj *pShow, char *data, int32_t rows, void *pConn) {
@@ -622,10 +627,13 @@ static int32_t mnodeRetrieveDbs(SShowObj *pShow, char *data, int32_t rows, void
 
     cols = 0;
 
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    
+    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;  
     char* name = mnodeGetDbStr(pDb->name);
-    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, name, pShow->bytes[cols]);
+    if (name != NULL) {
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, name, pShow->bytes[cols]);
+    } else {
+      STR_TO_VARSTR(pWrite, "NULL");
+    }
     cols++;
 
     pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
diff --git a/src/mnode/src/mnodeDnode.c b/src/mnode/src/mnodeDnode.c
index 7edba8662e..26c4b7a3ea 100644
--- a/src/mnode/src/mnodeDnode.c
+++ b/src/mnode/src/mnodeDnode.c
@@ -277,45 +277,45 @@ static int32_t mnodeProcessCfgDnodeMsg(SMnodeMsg *pMsg) {
   SCMCfgDnodeMsg *pCmCfgDnode = pMsg->rpcMsg.pCont;
   if (pCmCfgDnode->ep[0] == 0) {
     tstrncpy(pCmCfgDnode->ep, tsLocalEp, TSDB_EP_LEN);
-  } 
-
-  int32_t dnodeId = 0;
-  char* pos = strchr(pCmCfgDnode->ep, ':');
-  if (NULL == pos) {
-    dnodeId = strtol(pCmCfgDnode->ep, NULL, 10);
-    if (dnodeId <= 0 || dnodeId > 65536) {
-      mError("failed to cfg dnode, invalid dnodeId:%s", pCmCfgDnode->ep);
-      return TSDB_CODE_MND_DNODE_NOT_EXIST;
-    }
   }
 
-  SRpcEpSet epSet = mnodeGetEpSetFromIp(pCmCfgDnode->ep);
-  if (dnodeId != 0) {
-    SDnodeObj *pDnode = mnodeGetDnode(dnodeId);
+  SDnodeObj *pDnode = mnodeGetDnodeByEp(pCmCfgDnode->ep);
+  if (pDnode == NULL) {
+    int32_t dnodeId = strtol(pCmCfgDnode->ep, NULL, 10);
+    if (dnodeId <= 0 || dnodeId > 65536) {
+      mError("failed to cfg dnode, invalid dnodeEp:%s", pCmCfgDnode->ep);
+      return TSDB_CODE_MND_DNODE_NOT_EXIST;
+    }
+
+    pDnode = mnodeGetDnode(dnodeId);
     if (pDnode == NULL) {
       mError("failed to cfg dnode, invalid dnodeId:%d", dnodeId);
       return TSDB_CODE_MND_DNODE_NOT_EXIST;
     }
-    epSet = mnodeGetEpSetFromIp(pDnode->dnodeEp);
-    mnodeDecDnodeRef(pDnode);
   }
 
-  SMDCfgDnodeMsg *pMdCfgDnode = rpcMallocCont(sizeof(SMDCfgDnodeMsg));
-  strcpy(pMdCfgDnode->ep, pCmCfgDnode->ep);
-  strcpy(pMdCfgDnode->config, pCmCfgDnode->config);
+  SRpcEpSet epSet = mnodeGetEpSetFromIp(pDnode->dnodeEp);
+  mnodeDecDnodeRef(pDnode);
 
-  SRpcMsg rpcMdCfgDnodeMsg = {
-    .ahandle = 0,
-    .code = 0,
-    .msgType = TSDB_MSG_TYPE_MD_CONFIG_DNODE,
-    .pCont = pMdCfgDnode,
-    .contLen = sizeof(SMDCfgDnodeMsg)
-  };
+  if (strncasecmp(pCmCfgDnode->config, "balance", 7) == 0) {
+    return balanceCfgDnode(pDnode, pCmCfgDnode->config + 8);
+  } else {
+    SMDCfgDnodeMsg *pMdCfgDnode = rpcMallocCont(sizeof(SMDCfgDnodeMsg));
+    strcpy(pMdCfgDnode->ep, pCmCfgDnode->ep);
+    strcpy(pMdCfgDnode->config, pCmCfgDnode->config);
 
-  mInfo("dnode:%s, is configured by %s", pCmCfgDnode->ep, pMsg->pUser->user);
-  dnodeSendMsgToDnode(&epSet, &rpcMdCfgDnodeMsg);
+    SRpcMsg rpcMdCfgDnodeMsg = {
+      .ahandle = 0,
+      .code = 0,
+      .msgType = TSDB_MSG_TYPE_MD_CONFIG_DNODE,
+      .pCont = pMdCfgDnode,
+      .contLen = sizeof(SMDCfgDnodeMsg)
+    };
 
-  return TSDB_CODE_SUCCESS;
+    mInfo("dnode:%s, is configured by %s", pCmCfgDnode->ep, pMsg->pUser->user);
+    dnodeSendMsgToDnode(&epSet, &rpcMdCfgDnodeMsg);
+    return TSDB_CODE_SUCCESS;
+  }
 }
 
 static void mnodeProcessCfgDnodeMsgRsp(SRpcMsg *rpcMsg) {
diff --git a/src/mnode/src/mnodeSdb.c b/src/mnode/src/mnodeSdb.c
index 42ded7ed06..4b2945152b 100644
--- a/src/mnode/src/mnodeSdb.c
+++ b/src/mnode/src/mnodeSdb.c
@@ -406,7 +406,7 @@ void sdbDecRef(void *handle, void *pObj) {
   int32_t    refCount = atomic_sub_fetch_32(pRefCount, 1);
   sdbTrace("def ref of table:%s record:%p:%s:%d", pTable->tableName, pObj, sdbGetKeyStrFromObj(pTable, pObj), *pRefCount);
 
-  int8_t *updateEnd = pObj + pTable->refCountPos - 1;
+  int32_t *updateEnd = pObj + pTable->refCountPos - 4;
   if (refCount <= 0 && *updateEnd) {
     sdbTrace("table:%s, record:%p:%s:%d is destroyed", pTable->tableName, pObj, sdbGetKeyStrFromObj(pTable, pObj), *pRefCount);
     SSdbOper oper = {.pObj = pObj};
@@ -453,7 +453,7 @@ static int32_t sdbInsertHash(SSdbTable *pTable, SSdbOper *pOper) {
     keySize = strlen((char *)key);
   }
 
-  taosHashPut(pTable->iHandle, key, keySize, &pOper->pObj, sizeof(void **));
+  taosHashPut(pTable->iHandle, key, keySize, &pOper->pObj, sizeof(int64_t));
 
   sdbIncRef(pTable, pOper->pObj);
   atomic_add_fetch_32(&pTable->numOfRows, 1);
@@ -472,6 +472,14 @@ static int32_t sdbInsertHash(SSdbTable *pTable, SSdbOper *pOper) {
 }
 
 static int32_t sdbDeleteHash(SSdbTable *pTable, SSdbOper *pOper) {
+  int32_t *updateEnd = pOper->pObj + pTable->refCountPos - 4;
+  bool set = atomic_val_compare_exchange_32(updateEnd, 0, 1) == 0;
+  if (!set) {
+    sdbError("table:%s, failed to delete record:%s from hash, for it already removed", pTable->tableName,
+             sdbGetKeyStrFromObj(pTable, pOper->pObj));
+    return TSDB_CODE_MND_SDB_OBJ_NOT_THERE;
+  }
+
   (*pTable->deleteFp)(pOper);
   
   void *  key = sdbGetObjKey(pTable, pOper->pObj);
@@ -486,8 +494,6 @@ static int32_t sdbDeleteHash(SSdbTable *pTable, SSdbOper *pOper) {
   sdbDebug("table:%s, delete record:%s from hash, numOfRows:%" PRId64 ", msg:%p", pTable->tableName,
            sdbGetKeyStrFromObj(pTable, pOper->pObj), pTable->numOfRows, pOper->pMsg);
 
-  int8_t *updateEnd = pOper->pObj + pTable->refCountPos - 1;
-  *updateEnd = 1;
   sdbDecRef(pTable, pOper->pObj);
 
   return TSDB_CODE_SUCCESS;
@@ -654,8 +660,9 @@ bool sdbCheckRowDeleted(void *pTableInput, void *pRow) {
   SSdbTable *pTable = pTableInput;
   if (pTable == NULL) return false;
 
-  int8_t *updateEnd = pRow + pTable->refCountPos - 1;
-  return (*updateEnd == 1);
+  int32_t *updateEnd = pRow + pTable->refCountPos - 4;
+  return atomic_val_compare_exchange_32(updateEnd, 1, 1) == 1;
+  // return (*updateEnd == 1);
 }
 
 int32_t sdbDeleteRow(SSdbOper *pOper) {
diff --git a/src/mnode/src/mnodeShow.c b/src/mnode/src/mnodeShow.c
index e3d5b41be3..1d85a8cacd 100644
--- a/src/mnode/src/mnodeShow.c
+++ b/src/mnode/src/mnodeShow.c
@@ -236,7 +236,7 @@ static int32_t mnodeProcessHeartBeatMsg(SMnodeMsg *pMsg) {
   }
 
   SCMHeartBeatMsg *pHBMsg = pMsg->rpcMsg.pCont;
-  SRpcConnInfo connInfo;
+  SRpcConnInfo connInfo = {0};
   rpcGetConnInfo(pMsg->rpcMsg.handle, &connInfo);
     
   int32_t connId = htonl(pHBMsg->connId);
@@ -284,7 +284,7 @@ static int32_t mnodeProcessConnectMsg(SMnodeMsg *pMsg) {
   SCMConnectRsp *pConnectRsp = NULL;
   int32_t code = TSDB_CODE_SUCCESS;
 
-  SRpcConnInfo connInfo;
+  SRpcConnInfo connInfo = {0};
   if (rpcGetConnInfo(pMsg->rpcMsg.handle, &connInfo) != 0) {
     mError("thandle:%p is already released while process connect msg", pMsg->rpcMsg.handle);
     code = TSDB_CODE_MND_INVALID_CONNECTION;
diff --git a/src/mnode/src/mnodeTable.c b/src/mnode/src/mnodeTable.c
index 7478d7cd78..12ab58d949 100644
--- a/src/mnode/src/mnodeTable.c
+++ b/src/mnode/src/mnodeTable.c
@@ -72,7 +72,7 @@ static void    mnodeProcessCreateChildTableRsp(SRpcMsg *rpcMsg);
 static int32_t mnodeProcessDropTableMsg(SMnodeMsg *mnodeMsg);
 static int32_t mnodeProcessDropSuperTableMsg(SMnodeMsg *pMsg);
 static void    mnodeProcessDropSuperTableRsp(SRpcMsg *rpcMsg);
-static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg, bool needReturn);
+static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg);
 static void    mnodeProcessDropChildTableRsp(SRpcMsg *rpcMsg);
 
 static int32_t mnodeProcessSuperTableVgroupMsg(SMnodeMsg *mnodeMsg);
@@ -759,7 +759,7 @@ static int32_t mnodeProcessDropTableMsg(SMnodeMsg *pMsg) {
     SChildTableObj *pCTable = (SChildTableObj *)pMsg->pTable;
     mInfo("app:%p:%p, table:%s, start to drop ctable, vgId:%d sid:%d uid:%" PRIu64, pMsg->rpcMsg.ahandle, pMsg,
           pDrop->tableId, pCTable->vgId, pCTable->sid, pCTable->uid);
-    return mnodeProcessDropChildTableMsg(pMsg, true);
+    return mnodeProcessDropChildTableMsg(pMsg);
   }
 }
 
@@ -882,7 +882,7 @@ static int32_t mnodeProcessCreateSuperTableMsg(SMnodeMsg *pMsg) {
 static int32_t mnodeDropSuperTableCb(SMnodeMsg *pMsg, int32_t code) {
   SSuperTableObj *pTable = (SSuperTableObj *)pMsg->pTable;
   if (code != TSDB_CODE_SUCCESS) {
-    mError("app:%p:%p, table:%s, failed to drop, sdb error", pMsg->rpcMsg.ahandle, pMsg, pTable->info.tableId);
+    mError("app:%p:%p, stable:%s, failed to drop, sdb error", pMsg->rpcMsg.ahandle, pMsg, pTable->info.tableId);
   } else {
     mLInfo("app:%p:%p, stable:%s, is dropped from sdb", pMsg->rpcMsg.ahandle, pMsg, pTable->info.tableId);
   }
@@ -1765,18 +1765,13 @@ static int32_t mnodeProcessCreateChildTableMsg(SMnodeMsg *pMsg) {
   }
 }
 
-static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg, bool needReturn) {
+static int32_t mnodeSendDropChildTableMsg(SMnodeMsg *pMsg, bool needReturn) {
   SChildTableObj *pTable = (SChildTableObj *)pMsg->pTable;
-  if (pMsg->pVgroup == NULL) pMsg->pVgroup = mnodeGetVgroup(pTable->vgId);
-  if (pMsg->pVgroup == NULL) {
-    mError("app:%p:%p, table:%s, failed to drop ctable, vgroup not exist", pMsg->rpcMsg.ahandle, pMsg,
-           pTable->info.tableId);
-    return TSDB_CODE_MND_APP_ERROR;
-  }
+  mLInfo("app:%p:%p, ctable:%s, is dropped from sdb", pMsg->rpcMsg.ahandle, pMsg, pTable->info.tableId);
 
   SMDDropTableMsg *pDrop = rpcMallocCont(sizeof(SMDDropTableMsg));
   if (pDrop == NULL) {
-    mError("app:%p:%p, table:%s, failed to drop ctable, no enough memory", pMsg->rpcMsg.ahandle, pMsg,
+    mError("app:%p:%p, ctable:%s, failed to drop ctable, no enough memory", pMsg->rpcMsg.ahandle, pMsg,
            pTable->info.tableId);
     return TSDB_CODE_MND_OUT_OF_MEMORY;
   }
@@ -1789,7 +1784,7 @@ static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg, bool needReturn) {
 
   SRpcEpSet epSet = mnodeGetEpSetFromVgroup(pMsg->pVgroup);
 
-  mInfo("app:%p:%p, table:%s, send drop ctable msg, vgId:%d sid:%d uid:%" PRIu64, pMsg->rpcMsg.ahandle, pMsg,
+  mInfo("app:%p:%p, ctable:%s, send drop ctable msg, vgId:%d sid:%d uid:%" PRIu64, pMsg->rpcMsg.ahandle, pMsg,
         pDrop->tableId, pTable->vgId, pTable->sid, pTable->uid);
 
   SRpcMsg rpcMsg = {
@@ -1807,6 +1802,40 @@ static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg, bool needReturn) {
   return TSDB_CODE_MND_ACTION_IN_PROGRESS;
 }
 
+static int32_t mnodeDropChildTableCb(SMnodeMsg *pMsg, int32_t code) {
+  if (code != TSDB_CODE_SUCCESS) {
+    SChildTableObj *pTable = (SChildTableObj *)pMsg->pTable;
+    mError("app:%p:%p, ctable:%s, failed to drop, sdb error", pMsg->rpcMsg.ahandle, pMsg, pTable->info.tableId);
+    return code;
+  } 
+
+  return mnodeSendDropChildTableMsg(pMsg, true);
+}
+
+static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg) {
+  SChildTableObj *pTable = (SChildTableObj *)pMsg->pTable;
+  if (pMsg->pVgroup == NULL) pMsg->pVgroup = mnodeGetVgroup(pTable->vgId);
+  if (pMsg->pVgroup == NULL) {
+    mError("app:%p:%p, table:%s, failed to drop ctable, vgroup not exist", pMsg->rpcMsg.ahandle, pMsg,
+           pTable->info.tableId);
+    return TSDB_CODE_MND_APP_ERROR;
+  }
+
+  SSdbOper oper = {
+    .type  = SDB_OPER_GLOBAL,
+    .table = tsChildTableSdb,
+    .pObj  = pTable,
+    .pMsg  = pMsg,
+    .cb    = mnodeDropChildTableCb
+  };
+
+  int32_t code = sdbDeleteRow(&oper);
+  if (code == TSDB_CODE_SUCCESS) {
+    return TSDB_CODE_MND_ACTION_IN_PROGRESS;
+  }
+  return code;
+}
+
 static int32_t mnodeFindNormalTableColumnIndex(SChildTableObj *pTable, char *colName) {
   SSchema *schema = (SSchema *) pTable->schema;
   for (int32_t col = 0; col < pTable->numOfColumns; col++) {
@@ -2220,19 +2249,6 @@ static void mnodeProcessDropChildTableRsp(SRpcMsg *rpcMsg) {
     return;
   }
 
-  SSdbOper oper = {
-    .type = SDB_OPER_GLOBAL,
-    .table = tsChildTableSdb,
-    .pObj = pTable
-  };
-
-  int32_t code = sdbDeleteRow(&oper);
-  if (code != TSDB_CODE_SUCCESS) {
-    mError("app:%p:%p, table:%s, update ctables sdb error", mnodeMsg->rpcMsg.ahandle, mnodeMsg, pTable->info.tableId);
-    dnodeSendRpcMnodeWriteRsp(mnodeMsg, TSDB_CODE_MND_SDB_ERROR);
-    return;
-  }
-
   if (mnodeMsg->pVgroup->numOfTables <= 0) {
     mInfo("app:%p:%p, vgId:%d, all tables is dropped, drop vgroup", mnodeMsg->rpcMsg.ahandle, mnodeMsg,
            mnodeMsg->pVgroup->vgId);
@@ -2259,7 +2275,7 @@ static void mnodeProcessCreateChildTableRsp(SRpcMsg *rpcMsg) {
   if (sdbCheckRowDeleted(tsChildTableSdb, pTable)) {
     mDebug("app:%p:%p, table:%s, create table rsp received, but a deleting opertion incoming, vgId:%d sid:%d uid:%" PRIu64,
            mnodeMsg->rpcMsg.ahandle, mnodeMsg, pTable->info.tableId, pTable->vgId, pTable->sid, pTable->uid);
-    mnodeProcessDropChildTableMsg(mnodeMsg, false);
+    mnodeSendDropChildTableMsg(mnodeMsg, false);
     rpcMsg->code = TSDB_CODE_SUCCESS;
   }
 
diff --git a/src/mnode/src/mnodeUser.c b/src/mnode/src/mnodeUser.c
index 84f5d6aa58..8c783eebaf 100644
--- a/src/mnode/src/mnodeUser.c
+++ b/src/mnode/src/mnodeUser.c
@@ -358,7 +358,7 @@ static int32_t mnodeRetrieveUsers(SShowObj *pShow, char *data, int32_t rows, voi
 }
 
 SUserObj *mnodeGetUserFromConn(void *pConn) {
-  SRpcConnInfo connInfo;
+  SRpcConnInfo connInfo = {0};
   if (rpcGetConnInfo(pConn, &connInfo) == 0) {
     return mnodeGetUser(connInfo.user);
   } else {
diff --git a/src/mnode/src/mnodeVgroup.c b/src/mnode/src/mnodeVgroup.c
index 1de591df7c..089168c31e 100644
--- a/src/mnode/src/mnodeVgroup.c
+++ b/src/mnode/src/mnodeVgroup.c
@@ -434,15 +434,22 @@ int32_t mnodeGetAvailableVgroup(SMnodeMsg *pMsg, SVgObj **ppVgroup, int32_t *pSi
   }
 
   if (pDb->numOfVgroups < maxVgroupsPerDb) {
-    mDebug("app:%p:%p, db:%s, try to create a new vgroup, numOfVgroups:%d maxVgroupsPerDb:%d", pMsg->rpcMsg.ahandle, pMsg,
-           pDb->name, pDb->numOfVgroups, maxVgroupsPerDb);
+    mDebug("app:%p:%p, db:%s, try to create a new vgroup, numOfVgroups:%d maxVgroupsPerDb:%d", pMsg->rpcMsg.ahandle,
+           pMsg, pDb->name, pDb->numOfVgroups, maxVgroupsPerDb);
     pthread_mutex_unlock(&pDb->mutex);
     int32_t code = mnodeCreateVgroup(pMsg);
-    if (code == TSDB_CODE_MND_ACTION_IN_PROGRESS) return code;
+    if (code == TSDB_CODE_MND_ACTION_IN_PROGRESS) {
+      return code;
+    } else {
+      pthread_mutex_lock(&pDb->mutex);
+    }
   }
 
   SVgObj *pVgroup = pDb->vgList[0];
-  if (pVgroup == NULL) return TSDB_CODE_MND_NO_ENOUGH_DNODES;
+  if (pVgroup == NULL) {
+    pthread_mutex_unlock(&pDb->mutex);
+    return TSDB_CODE_MND_NO_ENOUGH_DNODES;
+  }
 
   int32_t code = mnodeAllocVgroupIdPool(pVgroup);
   if (code != TSDB_CODE_SUCCESS) {
@@ -483,7 +490,7 @@ static int32_t mnodeCreateVgroupCb(SMnodeMsg *pMsg, int32_t code) {
   } else {
     pVgroup->status = TAOS_VG_STATUS_READY;
     SSdbOper desc = {.type = SDB_OPER_GLOBAL, .pObj = pVgroup, .table = tsVgroupSdb};
-    sdbUpdateRow(&desc);
+    (void)sdbUpdateRow(&desc);
   }
 
   mInfo("app:%p:%p, vgId:%d, is created in mnode, db:%s replica:%d", pMsg->rpcMsg.ahandle, pMsg, pVgroup->vgId,
@@ -585,7 +592,7 @@ static int32_t mnodeGetVgroupMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *p
   pSchema[cols].bytes = htons(pShow->bytes[cols]);
   cols++;
 
-  pShow->bytes[cols] = 12 + VARSTR_HEADER_SIZE;
+  pShow->bytes[cols] = 8 + VARSTR_HEADER_SIZE;
   pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
   strcpy(pSchema[cols].name, "status");
   pSchema[cols].bytes = htons(pShow->bytes[cols]);
@@ -612,12 +619,6 @@ static int32_t mnodeGetVgroupMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *p
     pSchema[cols].bytes = htons(pShow->bytes[cols]);
     cols++;
 
-    pShow->bytes[cols] = 40 + VARSTR_HEADER_SIZE;
-    pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
-    strcpy(pSchema[cols].name, "end_point");
-    pSchema[cols].bytes = htons(pShow->bytes[cols]);
-    cols++;
-
     pShow->bytes[cols] = 9 + VARSTR_HEADER_SIZE;
     pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
     strcpy(pSchema[cols].name, "vstatus");
@@ -709,27 +710,15 @@ static int32_t mnodeRetrieveVgroups(SShowObj *pShow, char *data, int32_t rows, v
       *(int16_t *) pWrite = pVgroup->vnodeGid[i].dnodeId;
       cols++;
 
-      SDnodeObj *pDnode = pVgroup->vnodeGid[i].pDnode;
-
+      SDnodeObj * pDnode = pVgroup->vnodeGid[i].pDnode;
+      const char *role = "NULL";
       if (pDnode != NULL) {
-        pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-        STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pDnode->dnodeEp, pShow->bytes[cols]);
-        cols++;
-
-        pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-        char *role = mnodeGetMnodeRoleStr(pVgroup->vnodeGid[i].role);
-        STR_WITH_MAXSIZE_TO_VARSTR(pWrite, role, pShow->bytes[cols]);
-        cols++;
-      } else {
-        pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-        const char *src = "NULL";
-        STR_WITH_SIZE_TO_VARSTR(pWrite, src, strlen(src));
-        cols++;
-        
-        pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-        STR_WITH_SIZE_TO_VARSTR(pWrite, src, strlen(src));
-        cols++;
+        role = mnodeGetMnodeRoleStr(pVgroup->vnodeGid[i].role);
       }
+
+      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, role, pShow->bytes[cols]);
+      cols++;
     }
 
     mnodeDecVgroupRef(pVgroup);
diff --git a/src/plugins/http/src/gcJson.c b/src/plugins/http/src/gcJson.c
index 544a11b5fc..94d53db6ef 100644
--- a/src/plugins/http/src/gcJson.c
+++ b/src/plugins/http/src/gcJson.c
@@ -121,6 +121,10 @@ bool gcBuildQueryJson(HttpContext *pContext, HttpSqlCmd *cmd, TAOS_RES *result,
 
   for (int k = 0; k < numOfRows; ++k) {
     TAOS_ROW row = taos_fetch_row(result);
+    if (row == NULL) {
+      cmd->numOfRows--;
+      continue;
+    }
     int32_t* length = taos_fetch_lengths(result);
 
     // for group by
diff --git a/src/plugins/http/src/httpContext.c b/src/plugins/http/src/httpContext.c
index cefcca7821..225977abae 100644
--- a/src/plugins/http/src/httpContext.c
+++ b/src/plugins/http/src/httpContext.c
@@ -108,7 +108,7 @@ HttpContext *httpCreateContext(int32_t fd) {
   pContext->lastAccessTime = taosGetTimestampSec();
   pContext->state = HTTP_CONTEXT_STATE_READY;
 
-  HttpContext **ppContext = taosCachePut(tsHttpServer.contextCache, &pContext, sizeof(void *), &pContext, sizeof(void *), 3);
+  HttpContext **ppContext = taosCachePut(tsHttpServer.contextCache, &pContext, sizeof(int64_t), &pContext, sizeof(int64_t), 3);
   pContext->ppContext = ppContext;
   httpDebug("context:%p, fd:%d, is created, data:%p", pContext, fd, ppContext);
 
diff --git a/src/plugins/http/src/restJson.c b/src/plugins/http/src/restJson.c
index 53b0248149..7a73f6559f 100644
--- a/src/plugins/http/src/restJson.c
+++ b/src/plugins/http/src/restJson.c
@@ -94,6 +94,10 @@ bool restBuildSqlJson(HttpContext *pContext, HttpSqlCmd *cmd, TAOS_RES *result,
 
   for (int k = 0; k < numOfRows; ++k) {
     TAOS_ROW row = taos_fetch_row(result);
+    if (row == NULL) {
+      cmd->numOfRows--;
+      continue;
+    }
     int32_t* length = taos_fetch_lengths(result);
 
     // data row array begin
diff --git a/src/plugins/monitor/src/monitorMain.c b/src/plugins/monitor/src/monitorMain.c
index e6e8cf982b..0cc28bb82c 100644
--- a/src/plugins/monitor/src/monitorMain.c
+++ b/src/plugins/monitor/src/monitorMain.c
@@ -27,7 +27,6 @@
 #include "dnode.h"
 #include "monitor.h"
 
-
 #define monitorFatal(...) { if (monitorDebugFlag & DEBUG_FATAL) { taosPrintLog("MON FATAL ", 255, __VA_ARGS__); }}
 #define monitorError(...) { if (monitorDebugFlag & DEBUG_ERROR) { taosPrintLog("MON ERROR ", 255, __VA_ARGS__); }}
 #define monitorWarn(...)  { if (monitorDebugFlag & DEBUG_WARN)  { taosPrintLog("MON WARN ", 255, __VA_ARGS__); }}
@@ -78,6 +77,7 @@ static void monitorStartTimer();
 static void monitorSaveSystemInfo();
 extern int32_t (*monitorStartSystemFp)();
 extern void (*monitorStopSystemFp)();
+extern void (*monitorExecuteSQLFp)(char *sql);
 
 static void monitorCheckDiskUsage(void *para, void *unused) {
   taosGetDisk();
@@ -207,6 +207,7 @@ static void monitorInitDatabase() {
     taos_query_a(tsMonitorConn.conn, tsMonitorConn.sql, monitorInitDatabaseCb, NULL);
   } else {
     tsMonitorConn.state = MONITOR_STATE_INITIALIZED;
+    monitorExecuteSQLFp = monitorExecuteSQL;
     monitorInfo("monitor service init success");
 
     monitorStartTimer();
@@ -230,6 +231,7 @@ static void monitorInitDatabaseCb(void *param, TAOS_RES *result, int32_t code) {
 
 void monitorStopSystem() {
   monitorInfo("monitor module is stopped");
+  monitorExecuteSQLFp = NULL;
   tsMonitorConn.state = MONITOR_STATE_STOPPED;
   if (tsMonitorConn.initTimer != NULL) {
     taosTmrStopA(&(tsMonitorConn.initTimer));
@@ -248,33 +250,13 @@ static void monitorStartTimer() {
   taosTmrReset(monitorSaveSystemInfo, tsMonitorInterval * 1000, NULL, tscTmr, &tsMonitorConn.timer);
 }
 
-static void dnodeMontiorInsertAcctCallback(void *param, TAOS_RES *result, int32_t code) {
+static void dnodeMontiorLogCallback(void *param, TAOS_RES *result, int32_t code) {
   if (code < 0) {
-    monitorError("monitor:%p, save account info failed, code:%s", tsMonitorConn.conn, tstrerror(code));
+    monitorError("monitor:%p, save %s failed, reason:%s", tsMonitorConn.conn, (char *)param, tstrerror(code));
   } else if (code == 0) {
-    monitorError("monitor:%p, save account info failed, affect rows:%d", tsMonitorConn.conn, code);
+    monitorError("monitor:%p, save %s failed, affect rows:%d", tsMonitorConn.conn, (char *)param, code);
   } else {
-    monitorDebug("monitor:%p, save account info success, code:%s", tsMonitorConn.conn, tstrerror(code));
-  }
-}
-
-static void dnodeMontiorInsertSysCallback(void *param, TAOS_RES *result, int32_t code) {
-  if (code < 0) {
-    monitorError("monitor:%p, save system info failed, code:%s %s", tsMonitorConn.conn, tstrerror(code), tsMonitorConn.sql);
-  } else if (code == 0) {
-    monitorError("monitor:%p, save system info failed, affect rows:%d %s", tsMonitorConn.conn, code, tsMonitorConn.sql);
-  } else {
-    monitorDebug("monitor:%p, save system info success, code:%s %s", tsMonitorConn.conn, tstrerror(code), tsMonitorConn.sql);
-  }
-}
-
-static void dnodeMontiorInsertLogCallback(void *param, TAOS_RES *result, int32_t code) {
-  if (code < 0) {
-    monitorError("monitor:%p, save log failed, code:%s", tsMonitorConn.conn, tstrerror(code));
-  } else if (code == 0) {
-    monitorError("monitor:%p, save log failed, affect rows:%d", tsMonitorConn.conn, code);
-  } else {
-    monitorDebug("monitor:%p, save log info success, code:%s", tsMonitorConn.conn, tstrerror(code));
+    monitorDebug("monitor:%p, save %s info success, reason:%s", tsMonitorConn.conn, (char *)param, tstrerror(code));
   }
 }
 
@@ -359,7 +341,7 @@ static void monitorSaveSystemInfo() {
   pos += monitorBuildReqSql(sql + pos);
 
   monitorDebug("monitor:%p, save system info, sql:%s", tsMonitorConn.conn, sql);
-  taos_query_a(tsMonitorConn.conn, sql, dnodeMontiorInsertSysCallback, "log");
+  taos_query_a(tsMonitorConn.conn, sql, dnodeMontiorLogCallback, "sys");
 
   if (tsMonitorConn.timer != NULL && tsMonitorConn.state != MONITOR_STATE_STOPPED) {
     monitorStartTimer();
@@ -397,7 +379,7 @@ void monitorSaveAcctLog(SAcctMonitorObj *pMon) {
           pMon->accessState);
 
   monitorDebug("monitor:%p, save account info, sql %s", tsMonitorConn.conn, sql);
-  taos_query_a(tsMonitorConn.conn, sql, dnodeMontiorInsertAcctCallback, "account");
+  taos_query_a(tsMonitorConn.conn, sql, dnodeMontiorLogCallback, "account");
 }
 
 void monitorSaveLog(int32_t level, const char *const format, ...) {
@@ -421,14 +403,11 @@ void monitorSaveLog(int32_t level, const char *const format, ...) {
   sql[len++] = 0;
 
   monitorDebug("monitor:%p, save log, sql: %s", tsMonitorConn.conn, sql);
-  taos_query_a(tsMonitorConn.conn, sql, dnodeMontiorInsertLogCallback, "log");
+  taos_query_a(tsMonitorConn.conn, sql, dnodeMontiorLogCallback, "log");
 }
 
 void monitorExecuteSQL(char *sql) {
   if (tsMonitorConn.state != MONITOR_STATE_INITIALIZED) return;
-
   monitorDebug("monitor:%p, execute sql: %s", tsMonitorConn.conn, sql);
-  
-  // bug while insert binary
-  // taos_query_a(tsMonitorConn.conn, sql, NULL, NULL);
+  taos_query_a(tsMonitorConn.conn, sql, dnodeMontiorLogCallback, "sql");
 }
diff --git a/src/plugins/mqtt/src/mqttSystem.c b/src/plugins/mqtt/src/mqttSystem.c
index 2687106124..0259ea23eb 100644
--- a/src/plugins/mqtt/src/mqttSystem.c
+++ b/src/plugins/mqtt/src/mqttSystem.c
@@ -64,7 +64,7 @@ int32_t mqttInitSystem() {
   }
 
   char* _begin_hostname = strstr(url, recntStatus.hostname);
-  if (strstr(_begin_hostname, ":") != NULL) {
+  if (_begin_hostname != NULL && strstr(_begin_hostname, ":") != NULL) {
     recntStatus.port = strbetween(_begin_hostname, ":", "/");
   } else {
     recntStatus.port = strbetween("'1883'", "'", "'");
diff --git a/src/query/inc/qExtbuffer.h b/src/query/inc/qExtbuffer.h
index a992f6153c..aa30de4d0f 100644
--- a/src/query/inc/qExtbuffer.h
+++ b/src/query/inc/qExtbuffer.h
@@ -28,8 +28,8 @@ extern "C" {
 #include "talgo.h"
 
 #define MAX_TMPFILE_PATH_LENGTH PATH_MAX
-#define INITIAL_ALLOCATION_BUFFER_SIZE 64L
-#define DEFAULT_PAGE_SIZE (1024L*(INITIAL_ALLOCATION_BUFFER_SIZE))  // 16k larger than the SHistoInfo
+#define INITIAL_ALLOCATION_BUFFER_SIZE 1L
+#define DEFAULT_PAGE_SIZE (4096L*(INITIAL_ALLOCATION_BUFFER_SIZE))  // 16k larger than the SHistoInfo
 
 typedef enum EXT_BUFFER_FLUSH_MODEL {
   /*
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 458ce228bb..532bdeb43b 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -6417,8 +6417,12 @@ int32_t qDumpRetrieveResult(qinfo_t qinfo, SRetrieveTableRsp **pRsp, int32_t *co
   size += sizeof(STableIdInfo) * taosArrayGetSize(pQInfo->arrTableIdInfo);
   *contLen = size + sizeof(SRetrieveTableRsp);
 
-  // todo handle failed to allocate memory
+  // todo proper handle failed to allocate memory,
+  // current solution only avoid crash, but cannot return error code to client
   *pRsp = (SRetrieveTableRsp *)rpcMallocCont(*contLen);
+  if (*pRsp == NULL) {
+    return TSDB_CODE_QRY_OUT_OF_MEMORY;
+  }
   (*pRsp)->numOfRows = htonl(pQuery->rec.rows);
 
   int32_t code = pQInfo->code;
diff --git a/src/tsdb/src/tsdbMemTable.c b/src/tsdb/src/tsdbMemTable.c
index 5325eb5b0c..7708646a61 100644
--- a/src/tsdb/src/tsdbMemTable.c
+++ b/src/tsdb/src/tsdbMemTable.c
@@ -264,13 +264,11 @@ int tsdbLoadDataFromCache(STable *pTable, SSkipListIterator *pIter, TSKEY maxKey
   }
 
   do {
-    if (numOfRows >= maxRowsToRead) break;
-
     SDataRow row = tsdbNextIterRow(pIter);
     if (row == NULL) break;
 
     keyNext = dataRowKey(row);
-    if (keyNext < 0 || keyNext > maxKey) break;
+    if (keyNext > maxKey) break;
 
     bool keyFiltered = false;
     if (nFilterKeys != 0) {
@@ -289,6 +287,7 @@ int tsdbLoadDataFromCache(STable *pTable, SSkipListIterator *pIter, TSKEY maxKey
     }
 
     if (!keyFiltered) {
+      if (numOfRows >= maxRowsToRead) break;
       if (pCols) {
         if (pSchema == NULL || schemaVersion(pSchema) != dataRowVersion(row)) {
           pSchema = tsdbGetTableSchemaImpl(pTable, false, false, dataRowVersion(row));
diff --git a/src/tsdb/src/tsdbMeta.c b/src/tsdb/src/tsdbMeta.c
index c1923f5235..b25e734694 100644
--- a/src/tsdb/src/tsdbMeta.c
+++ b/src/tsdb/src/tsdbMeta.c
@@ -123,7 +123,10 @@ int tsdbCreateTable(TSDB_REPO_T *repo, STableCfg *pCfg) {
   int   tlen2 = tsdbGetTableEncodeSize(TSDB_UPDATE_META, table);
   int   tlen = tlen1 + tlen2;
   void *buf = tsdbAllocBytes(pRepo, tlen);
-  ASSERT(buf != NULL);
+  if (buf == NULL) {
+    goto _err;
+  }
+
   if (newSuper) {
     void *pBuf = tsdbInsertTableAct(pRepo, TSDB_UPDATE_META, buf, super);
     ASSERT(POINTER_DISTANCE(pBuf, buf) == tlen1);
diff --git a/src/tsdb/src/tsdbRWHelper.c b/src/tsdb/src/tsdbRWHelper.c
index f8792469cb..3063f22a28 100644
--- a/src/tsdb/src/tsdbRWHelper.c
+++ b/src/tsdb/src/tsdbRWHelper.c
@@ -1477,6 +1477,11 @@ static int tsdbProcessAppendCommit(SRWHelper *pHelper, SCommitIter *pCommitIter,
     if (tsdbInsertSuperBlock(pHelper, &compBlock, pIdx->numOfBlocks) < 0) return -1;
   }
 
+#ifndef NDEBUG
+  TSKEY keyNext = tsdbNextIterKey(pCommitIter->pIter);
+  ASSERT(keyNext < 0 || keyNext > pIdx->maxKey);
+#endif
+
   return 0;
 }
 
@@ -1561,11 +1566,12 @@ static int tsdbProcessMergeCommit(SRWHelper *pHelper, SCommitIter *pCommitIter,
         if (tsdbInsertSuperBlock(pHelper, &compBlock, tblkIdx) < 0) return -1;
         tblkIdx++;
       }
+      ASSERT(tblkIdx == 0 || (tsdbNextIterKey(pCommitIter->pIter) < 0 ||
+                              tsdbNextIterKey(pCommitIter->pIter) > blockAtIdx(pHelper, tblkIdx - 1)->keyLast));
     } else {
       ASSERT(keyFirst <= blkKeyLast);
       int16_t colId = 0;
       if (tsdbLoadBlockDataCols(pHelper, pCompBlock, NULL, &colId, 1) < 0) return -1;
-      ASSERT(pDataCols0->numOfRows == pCompBlock->numOfRows);
 
       slIter = *(pCommitIter->pIter);
       int rows1 = (pCfg->maxRowsPerFileBlock - pCompBlock->numOfRows);
@@ -1574,9 +1580,10 @@ static int tsdbProcessMergeCommit(SRWHelper *pHelper, SCommitIter *pCommitIter,
 
       if (rows2 == 0) {  // all filtered out
         *(pCommitIter->pIter) = slIter;
+        ASSERT(tblkIdx == 0 || (tsdbNextIterKey(pCommitIter->pIter) < 0 ||
+                                tsdbNextIterKey(pCommitIter->pIter) > blockAtIdx(pHelper, tblkIdx - 1)->keyLast));
       } else {
         int rows3 = tsdbLoadDataFromCache(pTable, &slIter, keyLimit, INT_MAX, NULL, NULL, 0) + rows2;
-        ASSERT(rows3 >= rows2);
 
         if (pCompBlock->numOfSubBlocks < TSDB_MAX_SUBBLOCKS && rows1 >= rows2) {
           int rows = (rows1 >= rows3) ? rows3 : rows2;
@@ -1588,6 +1595,8 @@ static int tsdbProcessMergeCommit(SRWHelper *pHelper, SCommitIter *pCommitIter,
             return -1;
           if (tsdbAddSubBlock(pHelper, &compBlock, tblkIdx, rowsRead) < 0) return -1;
           tblkIdx++;
+          ASSERT(tblkIdx == 0 || (tsdbNextIterKey(pCommitIter->pIter) < 0 ||
+                                  tsdbNextIterKey(pCommitIter->pIter) > blockAtIdx(pHelper, tblkIdx - 1)->keyLast));
         } else {
           if (tsdbLoadBlockData(pHelper, pCompBlock, NULL) < 0) return -1;
           int round = 0;
@@ -1608,6 +1617,8 @@ static int tsdbProcessMergeCommit(SRWHelper *pHelper, SCommitIter *pCommitIter,
             round++;
             tblkIdx++;
           }
+          ASSERT(tblkIdx == 0 || (tsdbNextIterKey(pCommitIter->pIter) < 0 ||
+                                  tsdbNextIterKey(pCommitIter->pIter) > blockAtIdx(pHelper, tblkIdx - 1)->keyLast));
         }
       }
     }
diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index ccfcff3599..04fcaede1d 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -188,8 +188,7 @@ TsdbQueryHandleT* tsdbQueryTables(TSDB_REPO_T* tsdb, STsdbQueryCond* pCond, STab
   pQueryHandle->allocSize   = 0;
 
   if (tsdbInitReadHelper(&pQueryHandle->rhelper, (STsdbRepo*) tsdb) != 0) {
-    free(pQueryHandle);
-    return NULL;
+    goto out_of_memory;
   }
 
   tsdbTakeMemSnapshot(pQueryHandle->pTsdb, &pQueryHandle->mem, &pQueryHandle->imem);
@@ -199,20 +198,32 @@ TsdbQueryHandleT* tsdbQueryTables(TSDB_REPO_T* tsdb, STsdbQueryCond* pCond, STab
 
   // allocate buffer in order to load data blocks from file
   int32_t numOfCols = pCond->numOfCols;
-
+  
   pQueryHandle->statis = calloc(numOfCols, sizeof(SDataStatis));
+  if (pQueryHandle->statis == NULL) {
+    goto out_of_memory;
+  }
   pQueryHandle->pColumns = taosArrayInit(numOfCols, sizeof(SColumnInfoData));  // todo: use list instead of array?
+  if (pQueryHandle->pColumns == NULL) {
+    goto out_of_memory;
+  }
 
   for (int32_t i = 0; i < numOfCols; ++i) {
     SColumnInfoData  colInfo = {{0}, 0};
-
+  
     colInfo.info = pCond->colList[i];
     colInfo.pData = calloc(1, EXTRA_BYTES + pQueryHandle->outputCapacity * pCond->colList[i].bytes);
+    if (colInfo.pData == NULL) {
+      goto out_of_memory;
+    }
     taosArrayPush(pQueryHandle->pColumns, &colInfo);
     pQueryHandle->statis[i].colId = colInfo.info.colId;
   }
 
   pQueryHandle->pTableCheckInfo = taosArrayInit(groupList->numOfTables, sizeof(STableCheckInfo));
+  if (pQueryHandle->pTableCheckInfo == NULL) {
+    goto out_of_memory;
+  }
   STsdbMeta* pMeta = tsdbGetMeta(tsdb);
   assert(pMeta != NULL);
 
@@ -247,6 +258,11 @@ TsdbQueryHandleT* tsdbQueryTables(TSDB_REPO_T* tsdb, STsdbQueryCond* pCond, STab
   tsdbInitCompBlockLoadInfo(&pQueryHandle->compBlockLoadInfo);
 
   return (TsdbQueryHandleT) pQueryHandle;
+
+out_of_memory:
+  terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
+  tsdbCleanupQueryHandle(pQueryHandle);
+  return NULL;
 }
 
 TsdbQueryHandleT tsdbQueryLastRow(TSDB_REPO_T *tsdb, STsdbQueryCond *pCond, STableGroupInfo *groupList, void* qinfo) {
@@ -2407,29 +2423,32 @@ void tsdbCleanupQueryHandle(TsdbQueryHandleT queryHandle) {
   if (pQueryHandle == NULL) {
     return;
   }
+  
+  if (pQueryHandle->pTableCheckInfo != NULL) {
+    size_t size = taosArrayGetSize(pQueryHandle->pTableCheckInfo);
+    for (int32_t i = 0; i < size; ++i) {
+      STableCheckInfo* pTableCheckInfo = taosArrayGet(pQueryHandle->pTableCheckInfo, i);
+      destroyTableMemIterator(pTableCheckInfo);
 
-  size_t size = taosArrayGetSize(pQueryHandle->pTableCheckInfo);
-  for (int32_t i = 0; i < size; ++i) {
-    STableCheckInfo* pTableCheckInfo = taosArrayGet(pQueryHandle->pTableCheckInfo, i);
-    destroyTableMemIterator(pTableCheckInfo);
+      if (pTableCheckInfo->pDataCols != NULL) {
+        tfree(pTableCheckInfo->pDataCols->buf);
+      }
 
-    if (pTableCheckInfo->pDataCols != NULL) {
-      tfree(pTableCheckInfo->pDataCols->buf);
+      tfree(pTableCheckInfo->pDataCols);
+      tfree(pTableCheckInfo->pCompInfo);
     }
-
-    tfree(pTableCheckInfo->pDataCols);
-    tfree(pTableCheckInfo->pCompInfo);
+    taosArrayDestroy(pQueryHandle->pTableCheckInfo);
   }
 
-  taosArrayDestroy(pQueryHandle->pTableCheckInfo);
+  if (pQueryHandle->pColumns != NULL) {
+    size_t cols = taosArrayGetSize(pQueryHandle->pColumns);
+    for (int32_t i = 0; i < cols; ++i) {
+      SColumnInfoData* pColInfo = taosArrayGet(pQueryHandle->pColumns, i);
+      tfree(pColInfo->pData);
+    }
+    taosArrayDestroy(pQueryHandle->pColumns);
+  }
 
-   size_t cols = taosArrayGetSize(pQueryHandle->pColumns);
-   for (int32_t i = 0; i < cols; ++i) {
-     SColumnInfoData* pColInfo = taosArrayGet(pQueryHandle->pColumns, i);
-     tfree(pColInfo->pData);
-   }
-
-  taosArrayDestroy(pQueryHandle->pColumns);
   taosArrayDestroy(pQueryHandle->defaultLoadColumn);
   tfree(pQueryHandle->pDataBlockInfo);
   tfree(pQueryHandle->statis);
diff --git a/src/util/src/tconfig.c b/src/util/src/tconfig.c
index 74acb7ce35..d561e8ba5f 100644
--- a/src/util/src/tconfig.c
+++ b/src/util/src/tconfig.c
@@ -308,38 +308,47 @@ bool taosReadGlobalCfg() {
 
   sprintf(fileName, "%s/taos.cfg", configDir);
   FILE* fp = fopen(fileName, "r");
+  if (fp == NULL) {
+    struct stat s;
+    if (stat(configDir, &s) != 0 || (!S_ISREG(s.st_mode) && !S_ISLNK(s.st_mode))) {
+      //return true to follow behavior before file support
+      return true;
+    }
+    fp = fopen(configDir, "r");
+    if (fp == NULL) {
+      return false;
+    }
+  }
   
   size_t len = 1024;
   line = calloc(1, len);
   
-  if (fp != NULL) {
-    while (!feof(fp)) {
-      memset(line, 0, len);
+  while (!feof(fp)) {
+    memset(line, 0, len);
 
-      option = value = NULL;
-      olen = vlen = 0;
+    option = value = NULL;
+    olen = vlen = 0;
 
-      getline(&line, &len, fp);
-      line[len - 1] = 0;
-      
-      paGetToken(line, &option, &olen);
-      if (olen == 0) continue;
-      option[olen] = 0;
+    getline(&line, &len, fp);
+    line[len - 1] = 0;
+    
+    paGetToken(line, &option, &olen);
+    if (olen == 0) continue;
+    option[olen] = 0;
 
-      paGetToken(option + olen + 1, &value, &vlen);
-      if (vlen == 0) continue;
-      value[vlen] = 0;
+    paGetToken(option + olen + 1, &value, &vlen);
+    if (vlen == 0) continue;
+    value[vlen] = 0;
 
-      // For dataDir, the format is:
-      // dataDir    /mnt/disk1    0
-      paGetToken(value + vlen + 1, &value1, &vlen1);
-      
-      taosReadConfigOption(option, value);
-    }
-
-    fclose(fp);
+    // For dataDir, the format is:
+    // dataDir    /mnt/disk1    0
+    paGetToken(value + vlen + 1, &value1, &vlen1);
+    
+    taosReadConfigOption(option, value);
   }
 
+  fclose(fp);
+
   tfree(line);
   
   return true;
diff --git a/tests/pytest/test.py b/tests/pytest/test.py
index a9da8e5671..678bd87336 100644
--- a/tests/pytest/test.py
+++ b/tests/pytest/test.py
@@ -96,7 +96,7 @@ if __name__ == "__main__":
             processID = subprocess.check_output(usePortPID, shell=True)
 
             if processID:
-                killCmd = "kill -9 %s" % processID
+                killCmd = "kill -TERM %s" % processID
                 os.system(killCmd)
             fuserCmd = "fuser -k -n tcp %d" % port
             os.system(fuserCmd)
diff --git a/tests/script/general/alter/dnode.sim b/tests/script/general/alter/dnode.sim
new file mode 100644
index 0000000000..20ce879979
--- /dev/null
+++ b/tests/script/general/alter/dnode.sim
@@ -0,0 +1,71 @@
+system sh/stop_dnodes.sh
+
+system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c walLevel -v 2
+system sh/exec.sh -n dnode1 -s start
+
+sleep 3000
+sql connect
+
+print ======== step1 
+sql alter dnode 1 resetlog
+sql alter dnode 1 monitor 1
+
+sleep 5000
+sql select * from log.dn
+if $rows <= 0 then
+  return -1
+endi
+
+print ======== step2
+
+sql alter dnode 1 resetquerycache
+sql alter dnode 1 debugFlag 135
+sql alter dnode 1 debugFlag 131
+sql alter dnode 1 monitor 0
+sql alter dnode 1 debugFlag 135
+sql alter dnode 1 monitorDebugFlag 135
+sql alter dnode 1 vDebugFlag 135
+sql alter dnode 1 mDebugFlag 135
+sql alter dnode 1 cDebugFlag 135
+sql alter dnode 1 httpDebugFlag 135
+sql alter dnode 1 qDebugflag 135
+sql alter dnode 1 sdbDebugFlag 135
+sql alter dnode 1 uDebugFlag 135
+sql alter dnode 1 tsdbDebugFlag 135
+sql alter dnode 1 sDebugflag 135
+sql alter dnode 1 rpcDebugFlag 135
+sql alter dnode 1 dDebugFlag 135
+sql alter dnode 1 mqttDebugFlag 135
+sql alter dnode 1 wDebugFlag 135
+sql alter dnode 1 tmrDebugFlag 135
+sql_error alter dnode 2 wDebugFlag 135
+sql_error alter dnode 2 tmrDebugFlag 135
+
+print ======== step3
+sql_error alter $hostname1 debugFlag 135
+sql_error alter $hostname1 monitorDebugFlag 135
+sql_error alter $hostname1 vDebugFlag 135
+sql_error alter $hostname1 mDebugFlag 135
+sql_error alter dnode $hostname2 debugFlag 135
+sql_error alter dnode $hostname2 monitorDebugFlag 135
+sql_error alter dnode $hostname2 vDebugFlag 135
+sql_error alter dnode $hostname2 mDebugFlag 135
+sql alter dnode $hostname1 debugFlag 135
+sql alter dnode $hostname1 monitorDebugFlag 135
+sql alter dnode $hostname1 vDebugFlag 135
+sql alter dnode $hostname1 tmrDebugFlag 131
+
+print ======== step4
+sql_error sql alter dnode 1 balance 0
+sql_error sql alter dnode 1 balance vnode:1-dnode:1
+sql_error sql alter dnode 1 balance "vnode:1"
+sql_error sql alter dnode 1 balance "vnode:1-dnode:1"
+sql_error sql alter dnode 1 balance "dnode:1-vnode:1"
+sql_error sql alter dnode 1 balance "dnode:1-"
+sql_error sql alter dnode 1 balance "vnode:2-dnod"
+sql alter dnode 1 balance "vnode:2-dnode:1" -x step4
+step4:
+
+print ======= over
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file
diff --git a/tests/script/general/parser/stream_on_sys.sim b/tests/script/general/parser/stream_on_sys.sim
index 5405e09256..5507b4db48 100644
--- a/tests/script/general/parser/stream_on_sys.sim
+++ b/tests/script/general/parser/stream_on_sys.sim
@@ -28,7 +28,7 @@ sql create table diskstrm as select count(*), avg(disk_used), last(disk_used), a
 sql create table bandstrm as select count(*), avg(band_speed), last(band_speed) from log.dn1 interval(4s) sliding(2s)
 sql create table reqstrm as select count(*), avg(req_http), last(req_http), avg(req_select), last(req_select), avg(req_insert), last(req_insert) from log.dn1 interval(4s) sliding(2s)
 sql create table iostrm as select count(*), avg(io_read), last(io_read), avg(io_write), last(io_write) from log.dn1 interval(4s) sliding(2s)
-sleep 20000
+sleep 120000
 sql select * from cpustrm
 if $rows <= 0 then
   return -1
diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index 3b9806558e..e953d337e4 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -3,6 +3,7 @@ cd ../../../debug; make
 
 ./test.sh -f general/alter/cached_schema_after_alter.sim
 ./test.sh -f general/alter/count.sim
+./test.sh -f general/alter/dnode.sim
 ./test.sh -f general/alter/import.sim
 ./test.sh -f general/alter/insert1.sim
 ./test.sh -f general/alter/insert2.sim
@@ -308,13 +309,10 @@ cd ../../../debug; make
 ./test.sh -f unique/vnode/replica3_repeat.sim
 ./test.sh -f unique/vnode/replica3_vgroup.sim
 
-# stream still has bugs
-#./test.sh -f general/parser/stream_on_sys.sim
-#./test.sh -f general/parser/repeatStream.sim
-
-#./test.sh -f general/stream/metrics_del.sim
+./test.sh -f general/parser/stream_on_sys.sim
+./test.sh -f general/stream/metrics_del.sim
 ./test.sh -f general/stream/metrics_n.sim
-#./test.sh -f general/stream/metrics_replica1_vnoden.sim
+./test.sh -f general/stream/metrics_replica1_vnoden.sim
 ./test.sh -f general/stream/restart_stream.sim
 ./test.sh -f general/stream/stream_3.sim
 ./test.sh -f general/stream/stream_restart.sim
@@ -326,13 +324,12 @@ cd ../../../debug; make
 ./test.sh -f unique/arbitrator/check_cluster_cfg_para.sim
 #./test.sh -f unique/arbitrator/dn2_mn1_cache_file_sync.sim
 ./test.sh -f unique/arbitrator/dn3_mn1_full_createTableFail.sim
-./test.sh -f unique/arbitrator/dn3_mn1_full_dropDnodeFail.sim
 ./test.sh -f unique/arbitrator/dn3_mn1_multiCreateDropTable.sim
 ./test.sh -f unique/arbitrator/dn3_mn1_nw_disable_timeout_autoDropDnode.sim
-./test.sh -f unique/arbitrator/dn3_mn1_replica2_wal1_AddDelDnode.sim
+#./test.sh -f unique/arbitrator/dn3_mn1_replica2_wal1_AddDelDnode.sim
 ./test.sh -f unique/arbitrator/dn3_mn1_replica_change_dropDnod.sim
 ./test.sh -f unique/arbitrator/dn3_mn1_replica_change.sim
-./test.sh -f unique/arbitrator/dn3_mn1_stopDnode_timeout.sim
+#./test.sh -f unique/arbitrator/dn3_mn1_stopDnode_timeout.sim
 # lower the priority while file corruption
 #./test.sh -f unique/arbitrator/dn3_mn1_vnode_change.sim
 #./test.sh -f unique/arbitrator/dn3_mn1_vnode_corruptFile_offline.sim
diff --git a/tests/script/sh/deploy.sh b/tests/script/sh/deploy.sh
index adbb8207be..ac65237319 100755
--- a/tests/script/sh/deploy.sh
+++ b/tests/script/sh/deploy.sh
@@ -125,7 +125,7 @@ echo "mqttDebugFlag       135"            >> $TAOS_CFG
 echo "qdebugFlag          135"            >> $TAOS_CFG
 echo "rpcDebugFlag        135"            >> $TAOS_CFG
 echo "tmrDebugFlag        131"            >> $TAOS_CFG
-echo "udebugFlag          143"            >> $TAOS_CFG
+echo "udebugFlag          135"            >> $TAOS_CFG
 echo "sdebugFlag          135"            >> $TAOS_CFG
 echo "wdebugFlag          135"            >> $TAOS_CFG
 echo "monitor             0"              >> $TAOS_CFG
diff --git a/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim b/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim
index 3df21a1c5d..b625619678 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim
@@ -137,8 +137,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data6_2
-$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data5_2
+$dnode2Vtatus = $data7_2
 
 if $dnode3Vtatus != offline then
   sleep 2000
@@ -204,8 +204,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data6_2
-$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data5_2
+$dnode2Vtatus = $data7_2
 
 print dnode2Vtatus: $dnode3Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -319,8 +319,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data6_2
-$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data5_2
+$dnode2Vtatus = $data7_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
diff --git a/tests/script/unique/arbitrator/dn3_mn1_r3_vnode_delDir.sim b/tests/script/unique/arbitrator/dn3_mn1_r3_vnode_delDir.sim
index 97b77aa66f..c647a35a5c 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_r3_vnode_delDir.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_r3_vnode_delDir.sim
@@ -139,8 +139,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -206,8 +206,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -325,8 +325,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -386,8 +386,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
diff --git a/tests/script/unique/arbitrator/dn3_mn1_replica_change.sim b/tests/script/unique/arbitrator/dn3_mn1_replica_change.sim
index 95fb21a017..23ace47e3c 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_replica_change.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_replica_change.sim
@@ -358,10 +358,10 @@ print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $dat
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4  $data10_4
 #print $data0_5  $data1_5  $data2_5  $data3_5  $data4_5
 #print $data0_6  $data1_6  $data2_6  $data3_6  $data4_6
-$thirdDnode_2 = $data10_1 
-$thirdDnode_3 = $data10_2 
-$thirdDnode_4 = $data10_3 
-$thirdDnode_5 = $data10_4 
+$thirdDnode_2 = $data8_1 
+$thirdDnode_3 = $data8_2 
+$thirdDnode_4 = $data8_3 
+$thirdDnode_5 = $data8_4 
 
 if $thirdDnode_2 != null then
   sleep 2000
@@ -405,10 +405,10 @@ print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $dat
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4
 #print $data0_5  $data1_5  $data2_5  $data3_5  $data4_5
 #print $data0_6  $data1_6  $data2_6  $data3_6  $data4_6
-$sencodDnode_2 = $data7_1 
-$sencodDnode_3 = $data7_2 
-$sencodDnode_4 = $data7_3 
-$sencodDnode_5 = $data7_4 
+$sencodDnode_2 = $data6_1 
+$sencodDnode_3 = $data6_2 
+$sencodDnode_4 = $data6_3 
+$sencodDnode_5 = $data6_4 
 
 if $sencodDnode_2 != null then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_change.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_change.sim
index ee974ad6db..b18edf0670 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_change.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_change.sim
@@ -138,8 +138,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -213,8 +213,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -287,8 +287,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_offline.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_offline.sim
index 6a8d69c271..3b208e6f1a 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_offline.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_offline.sim
@@ -144,8 +144,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data6_2
-$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data5_2
+$dnode2Vtatus = $data7_2
 
 if $dnode3Vtatus != offline then
   sleep 2000
@@ -234,8 +234,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode2Vtatus != master then
   sleep 2000
@@ -313,8 +313,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -393,8 +393,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus == offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_online.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_online.sim
index 1642e8a322..4f737b9c40 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_online.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_online.sim
@@ -196,8 +196,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -269,8 +269,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -325,8 +325,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus != slave then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_createErrData_online.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_createErrData_online.sim
index 59a62aa63d..f50081ea70 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_createErrData_online.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_createErrData_online.sim
@@ -158,8 +158,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -231,8 +231,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -287,8 +287,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus != slave then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_delDir.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_delDir.sim
index a0629abab8..3582a3b7b2 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_delDir.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_delDir.sim
@@ -141,8 +141,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -201,8 +201,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -301,8 +301,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -417,8 +417,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_noCorruptFile_offline.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_noCorruptFile_offline.sim
index e2fa1fbe2f..4040318801 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_noCorruptFile_offline.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_noCorruptFile_offline.sim
@@ -144,8 +144,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data6_2
-$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data5_2
+$dnode2Vtatus = $data7_2
 
 if $dnode3Vtatus != offline then
   sleep 2000
@@ -234,8 +234,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus != master then
   sleep 2000
@@ -313,8 +313,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -392,8 +392,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data9_2
-$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data5_2
 
 if $dnode2Vtatus == offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_nomaster.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_nomaster.sim
index a425bc3e92..53209b0d5a 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_nomaster.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_nomaster.sim
@@ -151,8 +151,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -259,8 +259,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data6_3
-$dnode2Vtatus = $data9_3
+$dnode3Vtatus = $data5_3
+$dnode2Vtatus = $data7_3
 
 if $dnode3Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_alterTable_online.sim b/tests/script/unique/arbitrator/offline_replica2_alterTable_online.sim
index 12d0a19f73..c11bfa62f9 100644
--- a/tests/script/unique/arbitrator/offline_replica2_alterTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_alterTable_online.sim
@@ -139,8 +139,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_alterTag_online.sim b/tests/script/unique/arbitrator/offline_replica2_alterTag_online.sim
index be032dfa76..bed5cefa76 100644
--- a/tests/script/unique/arbitrator/offline_replica2_alterTag_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_alterTag_online.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_createTable_online.sim b/tests/script/unique/arbitrator/offline_replica2_createTable_online.sim
index d79ba724f7..9fdb70142b 100644
--- a/tests/script/unique/arbitrator/offline_replica2_createTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_createTable_online.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_dropDb_online.sim b/tests/script/unique/arbitrator/offline_replica2_dropDb_online.sim
index 20f4552fe3..6752e0345d 100644
--- a/tests/script/unique/arbitrator/offline_replica2_dropDb_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_dropDb_online.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_dropTable_online.sim b/tests/script/unique/arbitrator/offline_replica2_dropTable_online.sim
index 7131df5d24..1280cfe7a0 100644
--- a/tests/script/unique/arbitrator/offline_replica2_dropTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_dropTable_online.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_alterTable_online.sim b/tests/script/unique/arbitrator/offline_replica3_alterTable_online.sim
index 48eb9512c8..27c2ba4328 100644
--- a/tests/script/unique/arbitrator/offline_replica3_alterTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_alterTable_online.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_alterTag_online.sim b/tests/script/unique/arbitrator/offline_replica3_alterTag_online.sim
index 13d88f0f38..86fb51cfa9 100644
--- a/tests/script/unique/arbitrator/offline_replica3_alterTag_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_alterTag_online.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_createTable_online.sim b/tests/script/unique/arbitrator/offline_replica3_createTable_online.sim
index c96d7f5b6e..4dcc5977f3 100644
--- a/tests/script/unique/arbitrator/offline_replica3_createTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_createTable_online.sim
@@ -144,8 +144,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_dropDb_online.sim b/tests/script/unique/arbitrator/offline_replica3_dropDb_online.sim
index 1392e6c8a7..4f4cf6a263 100644
--- a/tests/script/unique/arbitrator/offline_replica3_dropDb_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_dropDb_online.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_dropTable_online.sim b/tests/script/unique/arbitrator/offline_replica3_dropTable_online.sim
index 729aff56c0..98946c4b7c 100644
--- a/tests/script/unique/arbitrator/offline_replica3_dropTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_dropTable_online.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica2_alterTable_add.sim b/tests/script/unique/arbitrator/sync_replica2_alterTable_add.sim
index 25da315be4..dc8b1d015d 100644
--- a/tests/script/unique/arbitrator/sync_replica2_alterTable_add.sim
+++ b/tests/script/unique/arbitrator/sync_replica2_alterTable_add.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica2_alterTable_drop.sim b/tests/script/unique/arbitrator/sync_replica2_alterTable_drop.sim
index a26c1b04ed..d2c82f98ff 100644
--- a/tests/script/unique/arbitrator/sync_replica2_alterTable_drop.sim
+++ b/tests/script/unique/arbitrator/sync_replica2_alterTable_drop.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica2_dropDb.sim b/tests/script/unique/arbitrator/sync_replica2_dropDb.sim
index 1556a03b67..96aec2dcf8 100644
--- a/tests/script/unique/arbitrator/sync_replica2_dropDb.sim
+++ b/tests/script/unique/arbitrator/sync_replica2_dropDb.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica2_dropTable.sim b/tests/script/unique/arbitrator/sync_replica2_dropTable.sim
index 669b41becb..a1d7d18c94 100644
--- a/tests/script/unique/arbitrator/sync_replica2_dropTable.sim
+++ b/tests/script/unique/arbitrator/sync_replica2_dropTable.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_alterTable_add.sim b/tests/script/unique/arbitrator/sync_replica3_alterTable_add.sim
index 00c42cb7e3..ba973cbe06 100644
--- a/tests/script/unique/arbitrator/sync_replica3_alterTable_add.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_alterTable_add.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_alterTable_drop.sim b/tests/script/unique/arbitrator/sync_replica3_alterTable_drop.sim
index 1d774e195e..9b918acc8e 100644
--- a/tests/script/unique/arbitrator/sync_replica3_alterTable_drop.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_alterTable_drop.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_createTable.sim b/tests/script/unique/arbitrator/sync_replica3_createTable.sim
index db29eaf838..3bf274a3ea 100644
--- a/tests/script/unique/arbitrator/sync_replica3_createTable.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_createTable.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_dnodeChang_DropAddAlterTableDropDb.sim b/tests/script/unique/arbitrator/sync_replica3_dnodeChang_DropAddAlterTableDropDb.sim
index 5b751e96f8..c8fe96008b 100644
--- a/tests/script/unique/arbitrator/sync_replica3_dnodeChang_DropAddAlterTableDropDb.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_dnodeChang_DropAddAlterTableDropDb.sim
@@ -139,8 +139,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -207,8 +207,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != slave then
   sleep 2000
@@ -240,8 +240,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != master then
   sleep 2000
@@ -314,8 +314,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != slave then
   sleep 2000
@@ -347,8 +347,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != master then
   sleep 2000
@@ -437,8 +437,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != slave then
   sleep 2000
@@ -470,8 +470,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != master then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_dropDb.sim b/tests/script/unique/arbitrator/sync_replica3_dropDb.sim
index 83f1d16856..4c7bb3d26c 100644
--- a/tests/script/unique/arbitrator/sync_replica3_dropDb.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_dropDb.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_dropTable.sim b/tests/script/unique/arbitrator/sync_replica3_dropTable.sim
index e874afeaed..7ac424666a 100644
--- a/tests/script/unique/arbitrator/sync_replica3_dropTable.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_dropTable.sim
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data6_2
-$dnode3Vtatus = $data9_2
+$dnode4Vtatus = $data5_2
+$dnode3Vtatus = $data7_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeDir.sim b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeDir.sim
index 7dd911a63e..12f0013191 100644
--- a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeDir.sim
+++ b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeDir.sim
@@ -194,13 +194,13 @@ print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $dat
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4
-$d2v2status = $data6_4
-$d2v3status = $data6_2
-$d2v4status = $data6_3
+$d2v2status = $data5_4
+$d2v3status = $data5_2
+$d2v4status = $data5_3
 
-$d1v2status = $data9_4
-$d1v3status = $data9_2
-$d1v4status = $data9_3
+$d1v2status = $data7_4
+$d1v3status = $data7_2
+$d1v4status = $data7_3
 
 if $d2v2status != master then
   sleep 2000
diff --git a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir.sim b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir.sim
index bcbf388946..29da1fd773 100644
--- a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir.sim
+++ b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir.sim
@@ -196,13 +196,13 @@ print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $dat
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4
-$d2v2status = $data6_4
-$d2v3status = $data6_2
-$d2v4status = $data6_3
+$d2v2status = $data5_4
+$d2v3status = $data5_2
+$d2v4status = $data5_3
 
-$d1v2status = $data9_4
-$d1v3status = $data9_2
-$d1v4status = $data9_3
+$d1v2status = $data7_4
+$d1v3status = $data7_2
+$d1v4status = $data7_3
 
 if $d2v2status != master then
   sleep 2000
diff --git a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir_stopAll_starAll.sim b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir_stopAll_starAll.sim
index ab76affafc..691b2cb568 100644
--- a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir_stopAll_starAll.sim
+++ b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir_stopAll_starAll.sim
@@ -161,13 +161,13 @@ print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $dat
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4
-$d2v2status = $data6_4
-$d2v3status = $data6_2
-$d2v4status = $data6_3
+$d2v2status = $data5_4
+$d2v3status = $data5_2
+$d2v4status = $data5_3
 
-$d1v2status = $data9_4
-$d1v3status = $data9_2
-$d1v4status = $data9_3
+$d1v2status = $data7_4
+$d1v3status = $data7_2
+$d1v4status = $data7_3
 
 if $d2v2status != master then
   sleep 2000
diff --git a/tests/script/unique/migrate/mn2_vn2_repl2_rmVnodeDir.sim b/tests/script/unique/migrate/mn2_vn2_repl2_rmVnodeDir.sim
index f6a60d6b08..8a1132de2e 100644
--- a/tests/script/unique/migrate/mn2_vn2_repl2_rmVnodeDir.sim
+++ b/tests/script/unique/migrate/mn2_vn2_repl2_rmVnodeDir.sim
@@ -194,13 +194,13 @@ print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $dat
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4
-$d2v2status = $data6_4
-$d2v3status = $data6_2
-$d2v4status = $data6_3
+$d2v2status = $data5_4
+$d2v3status = $data5_2
+$d2v4status = $data5_3
 
-$d1v2status = $data9_4
-$d1v3status = $data9_2
-$d1v4status = $data9_3
+$d1v2status = $data7_4
+$d1v3status = $data7_2
+$d1v4status = $data7_3
 
 if $d2v2status != master then
   sleep 2000