diff --git a/tests/pytest/update/append_commit_data.py b/tests/pytest/update/append_commit_data.py
index e0cda0cd90a93cf63a0754b6dbeb6207e84769f7..3169b748e0843c720beb54eced28a14f1ca747a6 100644
--- a/tests/pytest/update/append_commit_data.py
+++ b/tests/pytest/update/append_commit_data.py
@@ -46,9 +46,7 @@ class TDTestCase:
         print("==========step2")
         print("restart to commit ")
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from db.t1")
         tdSql.checkRows(insertRows)
         for k in range(0,100):
@@ -59,9 +57,7 @@ class TDTestCase:
                 (t0+k*200+i)
             )
           tdDnodes.stop(1)
-          time.sleep(5)
           tdDnodes.start(1)
-          time.sleep(5)
           tdSql.query("select * from db.t1")
           tdSql.checkRows(insertRows+200*k)
         print("==========step2")
@@ -75,9 +71,7 @@ class TDTestCase:
               'insert into t2 values (%d, 1)' %
               (t0+i))
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t2")
         tdSql.checkRows(insertRows)
 
diff --git a/tests/pytest/update/merge_commit_data.py b/tests/pytest/update/merge_commit_data.py
index 3cc3ba828b21bbf2b40932a3fcc92d638597efa5..d2b425b95550a3665860369bfc8c189b3d510be0 100644
--- a/tests/pytest/update/merge_commit_data.py
+++ b/tests/pytest/update/merge_commit_data.py
@@ -44,9 +44,7 @@ class TDTestCase:
             'insert into t1 values (%d , 1)' %
             (t0 + i))
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t1")
         tdSql.checkRows(insertRows)
 
@@ -75,9 +73,6 @@ class TDTestCase:
         tdSql.query("select * from t2")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
-        tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t2")
         tdSql.checkRows(insertRows)
         for i in range(-100,0):
@@ -87,9 +82,7 @@ class TDTestCase:
         tdSql.query("select * from t2")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t2")
         tdSql.checkRows(insertRows+100)
         print("==========step3")
@@ -103,9 +96,7 @@ class TDTestCase:
         tdSql.query("select * from t3")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t3")
         tdSql.checkRows(insertRows)
         for i in range(-6000,0):
@@ -115,9 +106,7 @@ class TDTestCase:
         tdSql.query("select * from t3")
         tdSql.checkRows(insertRows+6000)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t3")
         tdSql.checkRows(insertRows+6000)
         print("==========step4")
@@ -131,9 +120,7 @@ class TDTestCase:
         tdSql.query("select * from t4")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t4")
         tdSql.checkRows(insertRows)
         for i in range(0,100):
@@ -143,9 +130,7 @@ class TDTestCase:
         tdSql.query("select * from t4")
         tdSql.checkRows(insertRows+100)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t4")
         tdSql.checkRows(insertRows+100)
         print("==========step5")
@@ -159,9 +144,7 @@ class TDTestCase:
         tdSql.query("select * from t5")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t5")
         tdSql.checkRows(insertRows)
         for i in range(0,6000):
@@ -171,9 +154,7 @@ class TDTestCase:
         tdSql.query("select * from t5")
         tdSql.checkRows(insertRows+6000)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t5")
         tdSql.checkRows(insertRows+6000)
         print("==========step6")
@@ -187,9 +168,7 @@ class TDTestCase:
         tdSql.query("select * from t6")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t6")
         tdSql.checkRows(insertRows)
         for i in range(0,100):
@@ -201,9 +180,7 @@ class TDTestCase:
         tdSql.query("select sum(a) from t6")
         tdSql.checkData(0,0,'300')
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t6")
         tdSql.checkRows(insertRows+100)
         tdSql.query("select sum(a) from t6")
@@ -217,9 +194,7 @@ class TDTestCase:
         tdSql.query("select sum(a) from t6")
         tdSql.checkData(0,0,'400')
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t6")
         tdSql.checkRows(insertRows+200)
         tdSql.query("select sum(a) from t6")
@@ -235,9 +210,7 @@ class TDTestCase:
         tdSql.query("select * from t7")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t7")
         tdSql.checkRows(insertRows)
         for i in range(100,300):
@@ -249,9 +222,7 @@ class TDTestCase:
         tdSql.query("select sum(a) from t7")
         tdSql.checkData(0,0,'500')
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t7")
         tdSql.checkRows(insertRows+100)
         tdSql.query("select sum(a) from t7")
@@ -267,9 +238,7 @@ class TDTestCase:
         tdSql.query("select * from t8")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t8")
         tdSql.checkRows(insertRows)
         for i in range(6000):
@@ -281,9 +250,7 @@ class TDTestCase:
         tdSql.query("select sum(a) from t8")
         tdSql.checkData(0,0,'12000')
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t8")
         tdSql.checkRows(6000)
         tdSql.query("select sum(a) from t8")
@@ -299,9 +266,7 @@ class TDTestCase:
         tdSql.query("select * from t9")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t9")
         tdSql.checkRows(insertRows)
         for i in range(-100,100):
@@ -313,9 +278,7 @@ class TDTestCase:
         tdSql.query("select sum(a) from t9")
         tdSql.checkData(0,0,'500')
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t9")
         tdSql.checkRows(300)
         tdSql.query("select sum(a) from t9")
@@ -331,9 +294,7 @@ class TDTestCase:
         tdSql.query("select * from t10")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t10")
         tdSql.checkRows(insertRows)
         for i in range(-6000,100):
@@ -345,9 +306,7 @@ class TDTestCase:
         tdSql.query("select sum(a) from t10")
         tdSql.checkData(0,0,'12300')
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t10")
         tdSql.checkRows(6200)
         tdSql.query("select sum(a) from t10")
@@ -363,9 +322,7 @@ class TDTestCase:
         tdSql.query("select * from t11")
         tdSql.checkRows(insertRows)
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t11")
         tdSql.checkRows(insertRows)
         for i in range(100):
@@ -381,9 +338,7 @@ class TDTestCase:
         tdSql.query("select sum(a) from t11")
         tdSql.checkData(0,0,'11500')
         tdDnodes.stop(1)
-        time.sleep(5)
         tdDnodes.start(1)
-        time.sleep(5)
         tdSql.query("select * from t11")
         tdSql.checkRows(6000)
         tdSql.query("select sum(a) from t11")