diff --git a/handler/rca/rca_handler.py b/handler/rca/rca_handler.py
index ab9de5f3..42e11dcd 100644
--- a/handler/rca/rca_handler.py
+++ b/handler/rca/rca_handler.py
@@ -329,7 +329,7 @@ def add_record(self, record):
             self.stdio.verbose("add record: {0}".format(fill(record, width=100)))
 
     def add_suggest(self, suggest):
-        self.suggest += suggest
+        self.suggest += suggest + "\n"
         if self.stdio is not None:
             self.stdio.verbose("add suggest: {0}".format(suggest))
 
diff --git a/handler/rca/scene/ddl_disk_full_scene.py b/handler/rca/scene/ddl_disk_full_scene.py
index db6bcb43..31da106a 100644
--- a/handler/rca/scene/ddl_disk_full_scene.py
+++ b/handler/rca/scene/ddl_disk_full_scene.py
@@ -168,13 +168,14 @@ def execute(self):
                         self.record.add_record("magnification is 5.5")
                         target_server_estimated_size = int(estimiated_index_size * 55 / 10)
                     self.record.add_record("estimated_index_size with magnification is {0}B as {1}".format(target_server_estimated_size, translate_byte(target_server_estimated_size)))
-                    new_node_estimated_size["estimiated_index_size"] = estimiated_index_size
+                    new_node_estimated_size["estimiated_index_size"] = target_server_estimated_size
                     new_estimated_size.append(new_node_estimated_size)
                     self.record.add_record(
-                        "On target_server_ip is {0}, target_server_port is {1}, estimiated_index_size is {2}B as {3}".format(node_estimated_size["svr_ip"], node_estimated_size["svr_port"], estimiated_index_size, translate_byte(estimiated_index_size))
+                        "On target_server_ip is {0}, target_server_port is {1}, estimiated_index_size is {2}B as {3}".format(
+                            node_estimated_size["svr_ip"], node_estimated_size["svr_port"], target_server_estimated_size, translate_byte(target_server_estimated_size)
+                        )
                     )
-                self.estimated_size = new_estimated_size
-                for estimated_size in self.estimated_size:
+                for estimated_size in new_estimated_size:
                     target_server_ip = estimated_size["svr_ip"]
                     target_server_port = estimated_size["svr_port"]
                     target_server_estimated_size = int(estimated_size["estimiated_index_size"])