diff --git a/tests/script/tsim/valgrind/basic1.sim b/tests/script/tsim/valgrind/basic1.sim
index adcc92594b..1827e8d3c0 100644
--- a/tests/script/tsim/valgrind/basic1.sim
+++ b/tests/script/tsim/valgrind/basic1.sim
@@ -1,5 +1,6 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c debugflag -v 131
 system sh/exec.sh -n dnode1 -s start -v
 sql connect
 
@@ -33,9 +34,10 @@ sql drop dnode 2
 sql alter dnode 1 'debugflag 143'
 
 print =============== step4: create show database
-sql create database d1 vgroups 1
+sql create database d1 vgroups 1 buffer 3
 sql show databases
-sql show d1.vgroups
+sql use d1
+sql show vgroups
 
 print =============== step5: create show stable
 sql create table if not exists stb (ts timestamp, c1 int, c2 float, c3 double) tags (t1 int unsigned)
@@ -44,8 +46,6 @@ if $rows != 1 then
   return -1
 endi
 
-
-goto _OVER
 print =============== step6: create show table
 sql create table ct1 using stb tags(1000)
 sql show tables
diff --git a/tests/script/tsim/valgrind/basic2.sim b/tests/script/tsim/valgrind/basic2.sim
index 8781acd698..a592d48d66 100644
--- a/tests/script/tsim/valgrind/basic2.sim
+++ b/tests/script/tsim/valgrind/basic2.sim
@@ -1,5 +1,6 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c debugflag -v 131
 system sh/exec.sh -n dnode1 -s start -v
 sql connect
 
@@ -19,7 +20,7 @@ if $rows != 1 then
 endi
 
 print =============== step2: create db
-sql create database db vgroups 1
+sql create database db vgroups 1 buffer 3
 sql use db
 sql create table if not exists stb (ts timestamp, c1 int, c2 float, c3 double) tags (t1 int unsigned)
 
diff --git a/tests/script/tsim/valgrind/checkError1.sim b/tests/script/tsim/valgrind/checkError1.sim
index 654180f722..edbb28de4b 100644
--- a/tests/script/tsim/valgrind/checkError1.sim
+++ b/tests/script/tsim/valgrind/checkError1.sim
@@ -1,5 +1,6 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c debugflag -v 131
 system sh/exec.sh -n dnode1 -s start -v
 sql connect
 
@@ -28,7 +29,10 @@ sql alter user u1 pass 'taosdata'
 sql drop user u1
 sql_error alter user u2 sysinfo 0
 
-print =============== step3: 
+print =============== step3: create drop dnode
+sql create dnode $hostname port 7200
+sql drop dnode 2
+sql alter dnode 1 'debugflag 143'
 
 print =============== stop
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
diff --git a/tests/script/tsim/valgrind/checkError2.sim b/tests/script/tsim/valgrind/checkError2.sim
index b3d57d7fdb..31cd40cc15 100644
--- a/tests/script/tsim/valgrind/checkError2.sim
+++ b/tests/script/tsim/valgrind/checkError2.sim
@@ -1,5 +1,6 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c debugflag -v 131
 system sh/exec.sh -n dnode1 -s start -v
 sql connect
 
@@ -19,7 +20,17 @@ if $rows != 1 then
 endi
 
 print =============== step2: create db
-sql create database db vgroups 1
+sql create database d1 vgroups 1 buffer 3
+sql show databases
+sql use d1
+sql show vgroups
+
+print =============== step3: create show stable
+sql create table if not exists stb (ts timestamp, c1 int, c2 float, c3 double) tags (t1 int unsigned)
+sql show stables
+if $rows != 1 then 
+  return -1
+endi
 
 _OVER:
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
@@ -29,7 +40,7 @@ print ----> start to check if there are ERRORS in vagrind log file for each dnod
 system_content sh/checkValgrind.sh -n dnode1 
 
 print cmd return result ----> [ $system_content ]
-if $system_content <= 8 then
+if $system_content <= 6 then
   return 0
 endi