diff --git a/tests/pytest/wal/sdbComp.py b/tests/pytest/wal/sdbComp.py
index aab21419bb..e0a43d5e0e 100644
--- a/tests/pytest/wal/sdbComp.py
+++ b/tests/pytest/wal/sdbComp.py
@@ -44,6 +44,8 @@ class TDTestCase:
         return buildPath
         
     def run(self):
+
+        # set path para
         buildPath = self.getBuildPath()
         if (buildPath == ""):
             tdLog.exit("taosd not found!")
@@ -52,7 +54,8 @@ class TDTestCase:
 
         binPath = buildPath+ "/build/bin/"
         testPath = buildPath[:buildPath.find("debug")]
-        
+        walFilePath = testPath + "/sim/dnode1/data/mnode_bak/wal/"
+
         #new db and insert data
         os.system("rm -rf  %s/sim/dnode1/data/mnode_tmp/" % testPath)
         os.system("rm -rf  %s/sim/dnode1/data/mnode_bak/" % testPath)
@@ -77,20 +80,22 @@ class TDTestCase:
         tdSql.execute("alter table stb2_0 add column col2 binary(4)")
         tdSql.execute("alter table stb2_0 drop column col1")
         tdSql.execute("insert into stb2_0 values(1614218422000,8638,'R')")
+
         # stop taosd and compact wal file
         tdDnodes.stop(1)
         sleep(10)
         os.system("nohup %s/taosd  --compact-mnode-wal  -c %s/sim/dnode1/cfg/ & " %(binPath,testPath) )
-        # os.system("nohup taosd  --compact-mnode-wal  -c %s/sim/dnode1/cfg/ & " % testPath )
         sleep(5)
-        # tdDnodes.start(1)
-        os.system("nohup %s/taosd -c %s/sim/dnode1/cfg > /dev/null 2>&1 &" %(binPath,testPath) )
-        sleep(4)
+        assert os.path.exists(walFilePath) , "%s is not generated, compact didn't  take effect " % walFilePath    
+
+        # use new wal file to start  taosd 
+        tdDnodes.start(1)
+        sleep(5)
         tdSql.execute("reset query cache")
         query_pid2 = int(subprocess.getstatusoutput('ps aux|grep taosd |grep -v "grep"|awk \'{print $2}\'')[1])
         print(query_pid2)
 
-        # use new wal file to start up tasod 
+        # verify that the data is correct
         tdSql.execute("use db2")
         tdSql.query("select count (tbname) from stb0")
         tdSql.checkData(0, 0, 1)
diff --git a/tests/pytest/wal/sdbCompCluster.py b/tests/pytest/wal/sdbCompCluster.py
index b4411353d8..43cf4be3c6 100644
--- a/tests/pytest/wal/sdbCompCluster.py
+++ b/tests/pytest/wal/sdbCompCluster.py
@@ -54,8 +54,9 @@ class TwoClients:
         else:
             tdLog.info("taosd found in %s" % buildPath)
         binPath = buildPath+ "/build/bin/"
-
-        # query data from cluster'db
+        walFilePath = "/var/lib/taos/mnode_bak/wal/"
+        
+        # new taos client
         conn1 = taos.connect(host=self.host, user=self.user, password=self.password, config=self.config )
         print(conn1)
         cur1 = conn1.cursor()
@@ -95,13 +96,14 @@ class TwoClients:
         # stop taosd and compact wal file
         os.system("ps -ef |grep taosd |grep -v 'grep' |awk '{print $2}'|xargs kill -9")
         sleep(2)
-        os.system("nohup taosd  --compact-mnode-wal  -c /etc/taos/taos.cfg & ")
+        os.system("nohup taosd  --compact-mnode-wal  -c /etc/taos & ")
         sleep(5)
         os.system("nohup /usr/bin/taosd > /dev/null 2>&1 &")
         sleep(4)
         tdSql.execute("reset query cache")
         query_pid2 = int(subprocess.getstatusoutput('ps aux|grep taosd |grep -v "grep"|awk \'{print $2}\'')[1])
         print(query_pid2)
+        assert os.path.exists(walFilePath) , "%s is not generated " % walFilePath    
 
         # use new wal file to start up tasod 
         tdSql.execute("use db2")