diff --git a/files/image_config/hostcfgd/hostcfgd b/files/image_config/hostcfgd/hostcfgd
index a7a817b9f7..368a589796 100755
--- a/files/image_config/hostcfgd/hostcfgd
+++ b/files/image_config/hostcfgd/hostcfgd
@@ -168,11 +168,26 @@ class AaaCfg(object):
     def tacacs_server_update(self, key):
         self.modify_conf_file()
 
+    def check_file_not_empty(self, filename):
+        exists = os.path.exists(filename)
+        if not exists:
+            syslog.syslog(syslog.LOG_ERR, "file size check failed: {} is missing".format(filename))
+            return
+
+        size = os.path.getsize(filename)
+        if size == 0:
+            syslog.syslog(syslog.LOG_ERR, "file size check failed: {} is empty, file corrupted".format(filename))
+            return
+
+        syslog.syslog(syslog.LOG_INFO, "file size check pass: {} size is ({}) bytes".format(filename, size))
+
     def modify_single_file(self, filename, operations=None):
         if operations:
             cmd = "sed -e {0} {1} > {1}.new; mv -f {1} {1}.old; mv -f {1}.new {1}".format(' -e '.join(operations), filename)
             os.system(cmd)
 
+        self.check_file_not_empty(filename)
+
     def modify_conf_file(self):
         with lock_mgr():
             self.auth = self.config_db.get_table('AAA').get("authentication", {})