diff --git a/tests/script/unique/cluster/cluster_main.sim b/tests/script/unique/cluster/cluster_main.sim
index da4f709f46e35bf1aed2c946aa2a0adb7b2322db..4c02d416f3024ed7893bbaa9ae1bef38bab25b4f 100644
--- a/tests/script/unique/cluster/cluster_main.sim
+++ b/tests/script/unique/cluster/cluster_main.sim
@@ -71,7 +71,7 @@ print ============== step3: create stable stb1
 $stb = stb1
 sql create table $stb (ts timestamp, c1 int) tags(t1 int, t2 binary(8))
 
-print ============== step4: start 10 client1/ 10 client2/ 10 client3/ 10 client4/ 1 client5
+print ============== step4: start back client1_0.sim
 run_back unique/cluster/client1_0.sim
 #run_back unique/cluster/client1_1.sim
 #run_back unique/cluster/client1_2.sim
@@ -106,26 +106,26 @@ endi
 print wait for a while to let clients start insert data
 sleep 5000    
 
+print ============== step4-1: add dnode4/dnode5 into cluster
+sql create dnode $hostname4
+sql create dnode $hostname5
+
 $loop_cnt = 0
 loop_cluster_do:
 print **** **** **** START loop cluster do (loop_cnt: $loop_cnt )**** **** **** ****
-print ============== step5: start dnode4/dnode5 and add into cluster, then wait ready
+print ============== step5: start dnode4/dnode5
 system sh/exec.sh -n dnode4 -s start
 system sh/exec.sh -n dnode5 -s start
-sql create dnode $hostname4
-sql create dnode $hostname5
-
-sleep 5000
-
+sleep 20000
 
-print ============== step6: stop and drop dnode1, then remove data dir of dnode1 
+print ============== step6: stop dnode1
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
-sleep 5000
-sql drop dnode $hostname1
-sleep 5000
+sleep 10000
+#sql drop dnode $hostname1
+#sleep 5000
 
-system rm -rf ../../../sim/dnode1/data
-sleep 20000
+#system rm -rf ../../../sim/dnode1/data
+#sleep 20000
 
 sql show mnodes
 print show mnodes
@@ -140,6 +140,22 @@ print $data0_7  $data1_7  $data2_7  $data3_7  $data4_7
 print $data0_8  $data1_8  $data2_8  $data3_8  $data4_8
 print $data0_9  $data1_9  $data2_9  $data3_9  $data4_9
 
+print ============== step6-1: restart dnode1
+system sh/exec.sh -n dnode1 -s start
+sleep 10000
+sql show mnodes
+print show mnodes
+print rows: $rows
+print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1
+print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2
+print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3
+print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4
+print $data0_5  $data1_5  $data2_5  $data3_5  $data4_5
+print $data0_6  $data1_6  $data2_6  $data3_6  $data4_6
+print $data0_7  $data1_7  $data2_7  $data3_7  $data4_7
+print $data0_8  $data1_8  $data2_8  $data3_8  $data4_8
+print $data0_9  $data1_9  $data2_9  $data3_9  $data4_9
+
 print ============== step7: stop dnode2 
 system sh/exec.sh -n dnode2 -s stop -x SIGINT
 sleep 5000
@@ -235,14 +251,17 @@ if $data04 != 2 then
   return -1
 endi
 
-print ============== step14: stop and drop dnode4/dnode5, then remove data dir of dnode4/dnode5 
+print ============== step14: stop dnode4/dnode5
 system sh/exec.sh -n dnode4 -s stop -x SIGINT
 system sh/exec.sh -n dnode5 -s stop -x SIGINT
 sleep 20000
-sql drop dnode $hostname4
-sql drop dnode $hostname5
-system rm -rf ../../../sim/dnode4/data
-system rm -rf ../../../sim/dnode5/data
+#system sh/exec.sh -n dnode4 -s start
+#system sh/exec.sh -n dnode5 -s start
+#sleep 10000
+#sql drop dnode $hostname4
+#sql drop dnode $hostname5
+#system rm -rf ../../../sim/dnode4/data
+#system rm -rf ../../../sim/dnode5/data
 
 print ============== step15: alter replica 1
 sql alter database $db replica 1
@@ -262,13 +281,13 @@ if $data04 != 2 then
   return -1
 endi
 
-print ============== step17: start dnode1 and add into cluster, then wait dnode1 ready
-system sh/cfg.sh -n dnode1 -c first -v $hostname2
-system sh/cfg.sh -n dnode1 -c second -v $hostname3
-
-system sh/exec.sh -n dnode1 -s start
-sql create dnode $hostname1
-sleep 20000
+#print ============== step17: start dnode1 and add into cluster, then wait dnode1 ready
+#system sh/cfg.sh -n dnode1 -c first -v $hostname2
+#system sh/cfg.sh -n dnode1 -c second -v $hostname3
+#
+#system sh/exec.sh -n dnode1 -s start
+#sql create dnode $hostname1
+#sleep 20000
 
 print ============== step18: alter replica 3
 sql alter database $db replica 3
diff --git a/tests/script/unique/cluster/cluster_main1.sim b/tests/script/unique/cluster/cluster_main1.sim
index 343924dfee6e5082393ce7e7e311447d7f7f7848..82e1e2be838893657c77e73caa326141318666a5 100644
--- a/tests/script/unique/cluster/cluster_main1.sim
+++ b/tests/script/unique/cluster/cluster_main1.sim
@@ -104,15 +104,18 @@ endi
 print wait for a while to let clients start insert data
 sleep 5000    
 
+print ============== step4-1: add dnode4/dnode5 into cluster
+sql create dnode $hostname4
+sql create dnode $hostname5
+sleep 5000
+
 $loop_cnt = 0
 loop_cluster_do:
 print **** **** **** START loop cluster do (loop_cnt: $loop_cnt )**** **** **** ****
-print ============== step5: start dnode4/dnode5 and add into cluster, then wait ready
+print ============== step5: start dnode4/dnode5
 system sh/exec.sh -n dnode4 -s start
 system sh/exec.sh -n dnode5 -s start
-sql create dnode $hostname4
-sql create dnode $hostname5
-sleep 5000
+sleep 20000
 
 print ============== step6: stop dnode1
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
@@ -207,9 +210,9 @@ print ============== step11: stop dnode4, then wait sync end
 system sh/exec.sh -n dnode4 -s stop -x SIGINT
 sleep 20000
 
-print ============== step12: restart dnode4, then wait sync end
-system sh/exec.sh -n dnode4 -s start
-sleep 20000
+#print ============== step12: restart dnode4, then wait sync end
+#system sh/exec.sh -n dnode4 -s start
+#sleep 20000
 sql show mnodes
 print show mnodes
 print rows: $rows
@@ -243,15 +246,15 @@ if $replica != 2 then
   return -1
 endi
 
-print ============== step14: drop dnode4, then remove data dir
-sql drop dnode $hostname4
+print ============== step14: stop dnode5
+system sh/exec.sh -n dnode5 -s stop -x SIGINT
 sleep 20000
-system rm -rf ../../../sim/dnode4/data
+#system rm -rf ../../../sim/dnode5/data
 
-print ============== step14-1: drop dnode5, then remove data dir
-sql drop dnode $hostname5
-sleep 20000
-system rm -rf ../../../sim/dnode5/data
+#print ============== step14-1: drop dnode5, then remove data dir
+#sql drop dnode $hostname5
+#sleep 20000
+#system rm -rf ../../../sim/dnode5/data
 
 print ============== step15: alter replica 1
 sql alter database $db replica 1
diff --git a/tests/script/unique/cluster/cluster_main2.sim b/tests/script/unique/cluster/cluster_main2.sim
index 83934da4579644ffca84f8a337a5c4c7db0116b7..e5fe3f2a217e7eaf5135544818e6210ddd0f33b2 100644
--- a/tests/script/unique/cluster/cluster_main2.sim
+++ b/tests/script/unique/cluster/cluster_main2.sim
@@ -108,15 +108,18 @@ endi
 print wait for a while to let clients start insert data
 sleep 5000    
 
+print ============== step4-1: add dnode4/dnode5 into cluster
+sql create dnode $hostname4
+sql create dnode $hostname5
+sleep 5000
+
+
 $loop_cnt = 0
 loop_cluster_do:
 print **** **** **** START loop cluster do (loop_cnt: $loop_cnt )**** **** **** ****
-print ============== step5: start dnode4/dnode5 and add into cluster, then wait ready
+print ============== step5: start dnode4/dnode5
 system sh/exec.sh -n dnode4 -s start
 system sh/exec.sh -n dnode5 -s start
-sql create dnode $hostname4
-sql create dnode $hostname5
-sleep 5000
 
 print ============== step6: stop dnode1
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
@@ -211,9 +214,9 @@ print ============== step11: stop dnode4, then wait sync end
 system sh/exec.sh -n dnode4 -s stop -x SIGINT
 sleep 20000
 
-print ============== step12: restart dnode4, then wait sync end
-system sh/exec.sh -n dnode4 -s start
-sleep 20000
+#print ============== step12: restart dnode4, then wait sync end
+#system sh/exec.sh -n dnode4 -s start
+#sleep 20000
 sql show mnodes
 print show mnodes
 print rows: $rows
@@ -247,15 +250,15 @@ if $replica != 2 then
   return -1
 endi
 
-print ============== step14: drop dnode4, then remove data dir
-sql drop dnode $hostname4
+print ============== step14: drop dnode5, then remove data dir
+system sh/exec.sh -n dnode5 -s stop -x SIGINT
 sleep 20000
-system rm -rf ../../../sim/dnode4/data
+#system rm -rf ../../../sim/dnode5/data
 
-print ============== step14-1: drop dnode5, then remove data dir
-sql drop dnode $hostname5
-sleep 20000
-system rm -rf ../../../sim/dnode5/data
+#print ============== step14-1: drop dnode5, then remove data dir
+#sql drop dnode $hostname5
+#sleep 20000
+#system rm -rf ../../../sim/dnode5/data
 
 print ============== step15: alter replica 1
 sql alter database $db replica 1