diff --git a/src/bin/gs_guc/pg_guc.cpp b/src/bin/gs_guc/pg_guc.cpp
index 74b4943f162fdff9e8ec30333555aa5b1297ebdc..ac9b08647e9e5bcee32bcadf4c4a5de6a82c6eed 100644
--- a/src/bin/gs_guc/pg_guc.cpp
+++ b/src/bin/gs_guc/pg_guc.cpp
@@ -1023,74 +1023,6 @@ append_string_info(char **optLines, const char *newContext)
     return optLinesResult;
 }
 
-/*******************************************************************************
- Function    : IsLastNotNullReplconninfo
- Description : determine if replconninfoX which is being set is the last one valid replconninfo
- Input       : optLines  - postgres.conf info before changing
-               replconninfoX - replconninfo param name which is being set, eg "replconninfo1"
- Output      : None
- Return      : bool
-*******************************************************************************/
-static bool IsLastNotNullReplconninfo(char** optLines, char* replconninfoX)
-{
-    int notNullReplconninfoNums = 0;
-    bool isReplconninfoXNull = true;
-    bool matchReplconninfoX = false;
-    char* p = NULL;
-
-    for (int i = 0; optLines != NULL && optLines[i] != NULL; i++) {
-        p = optLines[i];
-        /* Skip all the blanks at the begin of the optLine */
-        while (p != NULL && isspace((unsigned char)*p)) {
-            ++p;
-        }
-        if (p == NULL) {
-            continue;
-        }
-        if (*p == '#') {
-            ++p;
-            while (p != NULL && isspace((unsigned char)*p)) {
-                ++p;
-            }
-            /* replconninfoX must be invalid if it is commented*/
-            if (p != NULL && strncmp(p, replconninfoX, strlen(replconninfoX)) == 0) {
-                return false;
-            }
-            continue;
-        }
-        if (p != NULL && strncmp(p, "replconninfo", strlen("replconninfo")) == 0) {
-            if (strncmp(p, replconninfoX, strlen(replconninfoX)) == 0) {
-                matchReplconninfoX = true;
-            }
-            p += strlen(replconninfoX);
-            /* Skip all the blanks between the param and '=' */
-            while (p != NULL && isspace((unsigned char)*p)) {
-                p++;
-            }
-            /* Skip '=' */
-            if (p != NULL && *p == '=') {
-                p++;
-            }
-            /* Skip all the blanks between the '=' and value */
-            while (p != NULL && isspace((unsigned char)*p)) {
-                p++;
-            }
-            if (p != NULL && strncmp(p, "''", strlen("''")) != 0 &&
-                strncmp(p, "\"\"", strlen("\"\"")) != 0) {
-                ++notNullReplconninfoNums;
-                if (matchReplconninfoX) {
-                    isReplconninfoXNull = false;
-                }
-            }
-        }
-    }
-    /* return true if replconninfoX which is being set is the last one valid replconninfo */
-    if (notNullReplconninfoNums == 1 && !isReplconninfoXNull) {
-        return true;
-    }
-    return false;
-}
-
 /*
  * @@GaussDB@@
  * Brief            :
@@ -1182,14 +1114,6 @@ do_gucset(const char *action_type, const char *data_dir)
             }
         }
 
-        /* Give a warning if the last valid replconninfo is set to a invalid value currently */
-        if (strncmp(config_param[i], "replconninfo", strlen("replconninfo")) == 0 &&
-            config_value[i] != NULL && (strlen(config_value[i]) == 0 || strncmp(config_value[i], "''", strlen("''")) == 0) &&
-            IsLastNotNullReplconninfo(opt_lines, config_param[i])) {
-            write_stderr("\nWARNING: This is the last valid replConnInfo, once set to null, "
-                "the host role will be changed to Normal if the local_role is primary now.\n");
-        }
-
         /* find the line where guc parameter in */
         lines_index = find_gucoption(opt_lines, config_param[i], NULL, NULL, &optvalue_off, &optvalue_len);
         /* get the type of gs_guc execution */
diff --git a/src/common/backend/utils/misc/guc.cpp b/src/common/backend/utils/misc/guc.cpp
index b5cd65b4558c3eb0e90d1ae1f543f2c6a282fd1b..b9177bb385f463fe5f272362ca344cb5160021e4 100644
--- a/src/common/backend/utils/misc/guc.cpp
+++ b/src/common/backend/utils/misc/guc.cpp
@@ -17699,22 +17699,6 @@ static bool check_replconninfo(char** newval, void** extra, GucSource source)
     return true;
 }
 
-/*
- * @@GaussDB@@
- * Brief			: Determine if all eight replconninfos are empty.
- * Description		:
- * Notes			:
- */
-static inline bool GetReplCurArrayIsNull()
-{
-    for (int i = 1; i < MAX_REPLNODE_NUM; i++) {
-        if (t_thrd.postmaster_cxt.ReplConnArray[i] != NULL) {
-            return false;
-        }
-    }
-    return true;
-}
-
 /*
  * @@GaussDB@@
  * Brief			: Parse replconninfo1.
@@ -17736,12 +17720,6 @@ static void assign_replconninfo1(const char* newval, void* extra)
     if (u_sess->attr.attr_storage.ReplConnInfoArr[1] != NULL && newval != NULL &&
         strcmp(u_sess->attr.attr_storage.ReplConnInfoArr[1], newval) != 0) {
         t_thrd.postmaster_cxt.ReplConnChanged[1] = true;
-        // perceive single --> primary_standby
-        if (t_thrd.postmaster_cxt.HaShmData != NULL &&
-            t_thrd.postmaster_cxt.HaShmData->current_mode == NORMAL_MODE &&
-            !GetReplCurArrayIsNull()) {
-                t_thrd.postmaster_cxt.HaShmData->current_mode = PRIMARY_MODE;
-        }
     }
 }
 
diff --git a/src/gausskernel/process/postmaster/postmaster.cpp b/src/gausskernel/process/postmaster/postmaster.cpp
index d25ae836ef3873ee34b5e0a9f79882e4262b0e06..cb1224ace5916f06f8928ca9249d67ed2d968822 100755
--- a/src/gausskernel/process/postmaster/postmaster.cpp
+++ b/src/gausskernel/process/postmaster/postmaster.cpp
@@ -9496,13 +9496,6 @@ static void check_and_reset_ha_listen_port(void)
             signal_child(g_instance.pid_cxt.RemoteServicePID, SIGTERM);
 
         ListenSocketRegulation();
-
-        if (t_thrd.postmaster_cxt.HaShmData != NULL &&
-            t_thrd.postmaster_cxt.HaShmData->repl_list_num == 0 && 
-            t_thrd.postmaster_cxt.HaShmData->current_mode == PRIMARY_MODE) {
-            t_thrd.postmaster_cxt.HaShmData->current_mode = NORMAL_MODE;
-            SetServerMode(NORMAL_MODE);
-        }
     }
 
     return;