diff --git a/tests/pytest/util/cases.py b/tests/pytest/util/cases.py
index 3eb5cf2548..82aa552359 100644
--- a/tests/pytest/util/cases.py
+++ b/tests/pytest/util/cases.py
@@ -63,7 +63,7 @@ class TDCases:
 
         tdLog.info("total %d Linux test case(s) executed" % (runNum))
 
-    def runOneLinux(self, conn, fileName, replicaVar):
+    def runOneLinux(self, conn, fileName, replicaVar=1):
         testModule = self.__dynamicLoadModule(fileName)
 
         runNum = 0
diff --git a/tests/system-test/0-others/taosdShell.py b/tests/system-test/0-others/taosdShell.py
index 581448a6d9..7ad7e4d0ef 100644
--- a/tests/system-test/0-others/taosdShell.py
+++ b/tests/system-test/0-others/taosdShell.py
@@ -166,7 +166,7 @@ class TDTestCase:
         # keyDict['c'] = cfgPath
         # keyDict['P'] = self.serverPort
         tdDnodes=cluster.dnodes
-        for i in range(5):
+        for i in range(len(tdDnodes)):
             tdDnodes[i].stoptaosd()