diff --git a/src/manager/om/script/gs_dropnode b/src/manager/om/script/gs_dropnode
index 36993c803..b5c82a8c3 100644
--- a/src/manager/om/script/gs_dropnode
+++ b/src/manager/om/script/gs_dropnode
@@ -321,9 +321,9 @@ if __name__ == "__main__":
     dropNode.initLogs()
     dropNode.check_repeat_process()
     dropNode.checkParameters()
-    dropNode.check_cluster_status()
-    dropNode.flagForOnlyPrimaryLeft()
     dropNode.checkConnection(list(dropNode.backIpNameMap.keys()),
                              dropNode.envFile)
+    dropNode.check_cluster_status()
+    dropNode.flagForOnlyPrimaryLeft()
     dropNodeImpl = DropnodeImpl(dropNode)
     dropNodeImpl.run()
diff --git a/src/manager/om/script/gspylib/common/ErrorCode.py b/src/manager/om/script/gspylib/common/ErrorCode.py
index 777815e66..0bb83fc15 100644
--- a/src/manager/om/script/gspylib/common/ErrorCode.py
+++ b/src/manager/om/script/gspylib/common/ErrorCode.py
@@ -1126,9 +1126,9 @@ class ErrorCode():
                        "missing in the command.",
         "GAUSS_35802": "[GAUSS-35802] The IP list of target node: %s"
                        "is not in the current cluster. Please check!",
-        "GAUSS_35803": "[GAUSS-35803] The IP of primary node %s is in the "
+        "GAUSS_35803": "[GAUSS-35803] The IP of local host %s is in the "
                        "target node list. \n"
-                       "The primary node can not be dropped! \n",
+                       "Can not drop local host!\n",
         "GAUSS_35804": "[GAUSS-35804] The dropnode operation can only be executed"
                        " at the primary node. \n ",
         "GAUSS_35805": "[GAUSS-35805] Input %s. Operation aborted. ",
@@ -1136,7 +1136,7 @@ class ErrorCode():
                        "It doesn't meet the requirement.! ",
         "GAUSS_35807": "[GAUSS-35807] The host %s which still exist in the "
                        "cluster can't be connected.\n"
-                       "It doesn't meet the requirement.! ",
+                       "It doesn't meet the requirement! ",
         "GAUSS_35808": "[GAUSS-35808] The %s is running switchover/failover!\n"
                        "The dropnode operation can only be executed when there is"
                        " no such operation!",
diff --git a/src/manager/om/script/impl/dropnode/DropnodeImpl.py b/src/manager/om/script/impl/dropnode/DropnodeImpl.py
index 6ddf2e304..d763a0eef 100644
--- a/src/manager/om/script/impl/dropnode/DropnodeImpl.py
+++ b/src/manager/om/script/impl/dropnode/DropnodeImpl.py
@@ -465,7 +465,7 @@ class OperCommon:
         """
         self.logger.log(
             "[gs_dropnode]Start to parse parameter config file on %s." % host)
-        resultDict = {'replStr': '', 'syncStandbyStr': '', 'pghbaStr': ''}
+        resultDict = {'replStr': '', 'syncStandbyStr': '*', 'pghbaStr': ''}
         pgConfName = os.path.join(dirDn, 'postgresql.conf')
         pghbaConfName = os.path.join(dirDn, 'pg_hba.conf')
 
@@ -527,7 +527,9 @@ class OperCommon:
                 output_dn_nospace = list_output1
                 init_no -= 1
                 count_dn += 1
-        if count_dn == 0 or list_output1 == '':
+        if count_dn == 0:
+            return output_result
+        if list_output1 == '':
             return ''
         if list_output1 != '*':
             output_result = output.replace(output_dn, list_output1)
@@ -601,7 +603,7 @@ class OperCommon:
                 sqlvalue += "ALTER SYSTEM SET replconninfo%s = '%s';" % (
                 i, replValue[:-1].split('|')[count])
                 count += 1
-        if not singleLeft and syncStandbyValue != '':
+        if not singleLeft and syncStandbyValue != '*':
             sqlvalue += "ALTER SYSTEM SET synchronous_standby_names = '%s';" \
                         % syncStandbyValue
         if singleLeft: