diff --git a/tool/cm_tool/CMLog.py b/tool/cm_tool/CMLog.py
old mode 100644
new mode 100755
diff --git a/tool/cm_tool/Common.py b/tool/cm_tool/Common.py
old mode 100644
new mode 100755
diff --git a/tool/cm_tool/ErrorCode.py b/tool/cm_tool/ErrorCode.py
old mode 100644
new mode 100755
diff --git a/tool/cm_tool/InstallImpl.py b/tool/cm_tool/InstallImpl.py
old mode 100644
new mode 100755
index 94a7485..600e377
--- a/tool/cm_tool/InstallImpl.py
+++ b/tool/cm_tool/InstallImpl.py
@@ -139,6 +139,7 @@ class InstallImpl:
             cmd = """
                 cp {gaussHome}/share/config/cm_server.conf.sample {cmdir}/cm_server/cm_server.conf
                 sed 's#log_dir = .*#log_dir = {gaussLog}/cm/cm_server#' {cmdir}/cm_server/cm_server.conf -i
+                sed 's/enable_ssl.*=.*on/enable_ssl = off/g' {cmdir}/cm_server/cm_server.conf -i
                 """.format(gaussHome=self.gaussHome, gaussLog=self.gaussLog, cmdir=cmdir)
             status, output = self.executeCmdOnHost(host, cmd)
             if status != 0:
@@ -153,6 +154,7 @@ class InstallImpl:
                 cp {gaussHome}/share/config/cm_agent.conf.sample {cmdir}/cm_agent/cm_agent.conf && 
                 sed 's#log_dir = .*#log_dir = {gaussLog}/cm/cm_agent#' {cmdir}/cm_agent/cm_agent.conf -i && 
                 sed 's#unix_socket_directory = .*#unix_socket_directory = {gaussHome}#' {cmdir}/cm_agent/cm_agent.conf -i
+                sed 's/enable_ssl.*=.*on/enable_ssl = off/g' {cmdir}/cm_agent/cm_agent.conf -i
                 """.format(gaussHome=self.gaussHome, gaussLog=self.gaussLog, cmdir=cmdir)
             status, output = self.executeCmdOnHost(host, cmd)
             if status != 0:
diff --git a/tool/cm_tool/__init__.py b/tool/cm_tool/__init__.py
old mode 100644
new mode 100755
diff --git a/tool/cm_tool/cm_install b/tool/cm_tool/cm_install
old mode 100644
new mode 100755
diff --git a/tool/cm_tool/cm_uninstall b/tool/cm_tool/cm_uninstall
old mode 100644
new mode 100755
index 63634a5..e5a587c
--- a/tool/cm_tool/cm_uninstall
+++ b/tool/cm_tool/cm_uninstall
@@ -214,7 +214,10 @@ General options:
             return
         status, output = InstallImpl.refreshDynamicFile(self.envFile)
         if status != 0:
-            self.logger.logExit("Failed to refresh dynamic file." + output)
+            if "The number of master dn must equal to 1." in output:
+                self.logger.debug("Cann't refresh dynamic file when there is no normal primary in the current cluster.")
+            else:
+                self.logger.logExit("Failed to refresh dynamic file." + output)
 
     def deleteData(self):
         """
@@ -228,7 +231,7 @@ General options:
             isLocal = False
             if host == self.localhostName:
                 isLocal = True
-            cmd = "source %s; rm -rf %s $GAUSSLOG/cm" % (self.envFile, path)
+            cmd = "source %s; rm -rf %s $GAUSSLOG/cm $GAUSSHOME/share/sslcert/cm" % (self.envFile, path)
             status, output = executeCmdOnHost(host, cmd, isLocal)
             if status != 0:
                 errorDetail = "\nCommand: %s\nStatus: %s\nOutput: %s" % (cmd, status, output)
@@ -246,7 +249,7 @@ General options:
             if host == self.localhostName:
                 isLocal = True
             cmd = "source %s; cd $GAUSSHOME/bin; rm -f om_monitor* cm_agent* cm_server* " \
-                "cm_ctl* *manual*start*; cd -" % self.envFile
+                "cm_ctl* cm_persist* *manual*start*; cd -" % self.envFile
             status, output = executeCmdOnHost(host, cmd, isLocal)
             if status != 0:
                 errorDetail = "\nCommand: %s\nStatus: %s\nOutput: %s" % (cmd, status, output)