diff --git a/tests/develop-test/5-taos-tools/taosbenchmark/json/taosc_sample_use_ts.json b/tests/develop-test/5-taos-tools/taosbenchmark/json/taosc_sample_use_ts.json
index 38aa47740f..56c2a52b6a 100644
--- a/tests/develop-test/5-taos-tools/taosbenchmark/json/taosc_sample_use_ts.json
+++ b/tests/develop-test/5-taos-tools/taosbenchmark/json/taosc_sample_use_ts.json
@@ -43,7 +43,7 @@
       "disorder_ratio": 0,
       "disorder_range": 1000,
       "timestamp_step": 1,
-      "start_timestamp": "now",
+      "start_timestamp": 1641976781440,
       "sample_file": "./5-taos-tools/taosbenchmark/csv/sample_use_ts.csv",
       "use_sample_ts": "yes",
       "tags_file": "./5-taos-tools/taosbenchmark/csv/sample_tags.csv",
diff --git a/tests/system-test/0-others/splitVGroupRep1.py b/tests/system-test/0-others/splitVGroupRep1.py
index b119ba0a32..e2eb9cc6b1 100644
--- a/tests/system-test/0-others/splitVGroupRep1.py
+++ b/tests/system-test/0-others/splitVGroupRep1.py
@@ -223,7 +223,7 @@ class TDTestCase:
         start1 = time.time()
         rows1 = tdSql.query(sql1)
         spend1 = time.time() - start1
-        res1 = copy.copy(tdSql.queryResult)
+        res1 = copy.deepcopy(tdSql.queryResult)
 
         sql2 = sql.replace('@db_name', self.db2)
         tdLog.info(sql2)
@@ -234,6 +234,7 @@ class TDTestCase:
 
         rowlen1 = len(res1)
         rowlen2 = len(res2)
+        errCnt = 0
 
         if rowlen1 != rowlen2:
             tdLog.exit(f"both row count not equal. rowlen1={rowlen1} rowlen2={rowlen2} ")
@@ -249,8 +250,11 @@ class TDTestCase:
                 return False
             for j in range(collen1):
                 if row1[j] != row2[j]:
-                    tdLog.exit(f"both col not equal. row={i} col={j} col1={row1[j]} col2={row2[j]} .")
-                    return False
+                    tdLog.info(f"error both column value not equal. row={i} col={j} col1={row1[j]} col2={row2[j]} .")
+                    errCnt += 1
+
+        if errCnt > 0:
+            tdLog.exit(f" db2 column value  different with db2. different count ={errCnt} ")
 
         # warning performance
         diff = (spend2 - spend1)*100/spend1
@@ -409,6 +413,9 @@ class TDTestCase:
         # prepare env
         self.prepareEnv()
 
+        tdLog.info("check db1 and db2 same after creating ...")
+        self.checkResult()
+
         for i in range(3):
             # split vgroup on db2
             start = time.time()
diff --git a/tests/system-test/0-others/splitVGroupRep3.py b/tests/system-test/0-others/splitVGroupRep3.py
index 68c915eeaf..d45b037b5a 100644
--- a/tests/system-test/0-others/splitVGroupRep3.py
+++ b/tests/system-test/0-others/splitVGroupRep3.py
@@ -233,6 +233,7 @@ class TDTestCase:
 
         rowlen1 = len(res1)
         rowlen2 = len(res2)
+        errCnt = 0
 
         if rowlen1 != rowlen2:
             tdLog.exit(f"both row count not equal. rowlen1={rowlen1} rowlen2={rowlen2} ")
@@ -248,8 +249,11 @@ class TDTestCase:
                 return False
             for j in range(collen1):
                 if row1[j] != row2[j]:
-                    tdLog.exit(f"both col not equal. row={i} col={j} col1={row1[j]} col2={row2[j]} .")
-                    return False
+                    tdLog.info(f"error both column value not equal. row={i} col={j} col1={row1[j]} col2={row2[j]} .")
+                    errCnt += 1
+
+        if errCnt > 0:
+            tdLog.exit(f" db2 column value  different with db2. different count ={errCnt} ")
 
         # warning performance
         diff = (spend2 - spend1)*100/spend1