diff --git a/src/bin/pg_ctl/pg_ctl.cpp b/src/bin/pg_ctl/pg_ctl.cpp
index f2c78cdfb..302999924 100755
--- a/src/bin/pg_ctl/pg_ctl.cpp
+++ b/src/bin/pg_ctl/pg_ctl.cpp
@@ -2174,7 +2174,7 @@ static void do_failover(uint32 term)
     }
 
     origin_run_mode = run_mode = get_runmode();
-    if (ss_instance_config.dss.enable_dorado) {
+    if (ss_instance_config.dss.enable_dorado || ss_instance_config.dss.enable_stream) {
         if (run_mode == PRIMARY_MODE) {
             pg_log(PG_WARNING,
                 _(" failover completed; "
@@ -2183,9 +2183,14 @@ static void do_failover(uint32 term)
         } else if (run_mode != MAIN_STANDBY_MODE) {
             pg_log(PG_WARNING,
                 _(" cannot failover server; "
-                "server is not main standby node in ss dorado cluster\n"));
+                "server is not main standby node in ss double cluster\n"));
             exit(1);
         }
+    } else if (ss_instance_config.dss.enable_dss) {
+        pg_log(PG_WARNING,
+                _(" cannot failover server; "
+                "server is share storage single cluster mode\n"));
+        exit(1);
     } else {
         if (run_mode == PRIMARY_MODE) {
             pg_log(PG_WARNING, _(" failover completed (%s)\n"), pg_data);
@@ -2266,10 +2271,11 @@ static void do_failover(uint32 term)
             break;
     }
 
+    pg_log(PG_PRINT, "\n");
     if ((origin_run_mode == STANDBY_MODE && get_runmode() != PRIMARY_MODE) ||
         (origin_run_mode == MAIN_STANDBY_MODE && get_runmode() != PRIMARY_MODE) ||
         (origin_run_mode == CASCADE_STANDBY_MODE && get_runmode() != STANDBY_MODE)) {
-        pg_log(PG_WARNING, _(" \nfailover timeout after %d seconds. please manually check the cluster status or backtrack log.\n"), wait_seconds);
+        pg_log(PG_WARNING, _(" failover timeout after %d seconds. please manually check the cluster status or backtrack log.\n"), wait_seconds);
         pg_log(PG_WARNING, _(" failover failed (%s)\n"), pg_data);
         exit(1);
     }
diff --git a/src/common/port/tool_common.cpp b/src/common/port/tool_common.cpp
index c1c9d2264..84dc0bfbb 100644
--- a/src/common/port/tool_common.cpp
+++ b/src/common/port/tool_common.cpp
@@ -32,6 +32,7 @@ SSInstanceConfig ss_instance_config = {
     .dss = {
         .enable_dss = false,
         .enable_dorado = false,
+        .enable_stream = false,
         .instance_id = 0,
         .primaryInstId = -1,
         .interNodeNum = 0,
@@ -476,6 +477,7 @@ bool ss_read_config(const char* pg_data)
     char config_file[MAXPGPATH] = {0};
     char enable_dss[MAXPGPATH] = {0};
     char enable_dorado[MAXPGPATH] = {0};
+    char enable_stream[MAXPGPATH] = {0};
     char inst_id[MAXPGPATH] = {0};
     char interconnect_url[MAXPGPATH] = {0};
     char** optlines = NULL;
@@ -496,10 +498,15 @@ bool ss_read_config(const char* pg_data)
     }
 
     (void)find_guc_optval((const char**)optlines, "ss_enable_dorado", enable_dorado);
-    if(strcmp(enable_dorado, "on") == 0) {
+    if (strcmp(enable_dorado, "on") == 0) {
         ss_instance_config.dss.enable_dorado = true;
     }
 
+    (void)find_guc_optval((const char**)optlines, "ss_stream_cluster", enable_stream);
+    if (strcmp(enable_stream, "on") == 0) {
+        ss_instance_config.dss.enable_stream = true;
+    }
+
     ss_instance_config.dss.enable_dss = true;
     ss_instance_config.dss.socketpath = (char*)malloc(sizeof(char) * MAXPGPATH);
     ss_instance_config.dss.vgname = (char*)malloc(sizeof(char) * MAXPGPATH);
diff --git a/src/include/tool_common.h b/src/include/tool_common.h
index 4e758a839..5a2354cd4 100644
--- a/src/include/tool_common.h
+++ b/src/include/tool_common.h
@@ -122,6 +122,7 @@ typedef struct st_datadir_t {
 typedef struct DssOptions {
     bool enable_dss;
     bool enable_dorado;
+    bool enable_stream;
     int instance_id;
     int primaryInstId;
     int interNodeNum;