diff --git a/conf/uncloud.conf b/conf/uncloud.conf
index 9995696..6a1b500 100644
--- a/conf/uncloud.conf
+++ b/conf/uncloud.conf
@@ -1,7 +1,7 @@
 [etcd]
 url = localhost
 port = 2379
-prefix = /
+base_prefix = /
 ca_cert
 cert_cert
 cert_key
diff --git a/uncloud/api/main.py b/uncloud/api/main.py
index 50bc201..d8beb49 100644
--- a/uncloud/api/main.py
+++ b/uncloud/api/main.py
@@ -59,7 +59,7 @@ class CreateVM(Resource):
             macs = [generate_mac() for _ in range(len(data['network']))]
             tap_ids = [
                 counters.increment_etcd_counter(
-                    shared.etcd_client, '/v1/counter/tap'
+                    shared.etcd_client, settings['etcd']['counter']['tap']
                 )
                 for _ in range(len(data['network']))
             ]
@@ -470,7 +470,7 @@ class CreateNetwork(Resource):
 
             network_entry = {
                 'id': counters.increment_etcd_counter(
-                    shared.etcd_client, '/v1/counter/vxlan'
+                    shared.etcd_client, settings['etcd']['counter']['vxlan']
                 ),
                 'type': data['type'],
             }
diff --git a/uncloud/common/settings.py b/uncloud/common/settings.py
index 7004055..9db4afe 100644
--- a/uncloud/common/settings.py
+++ b/uncloud/common/settings.py
@@ -36,15 +36,15 @@ class Settings(object):
 
         self.config_parser = CustomConfigParser(allow_no_value=True)
         self.config_parser.add_section('etcd')
-        self.config_parser.set('etcd', 'prefix', '/')
-
-        self.config_key = join_path(self['etcd']['prefix'], '/uncloud/config/')
+        self.config_parser.set('etcd', 'base_prefix', '/')
 
         try:
             self.config_parser.read(self.config_file)
         except Exception as err:
             logger.error('%s', err)
 
+        self.config_key = join_path(self['etcd']['base_prefix'] + 'uncloud/config/')
+
         self.read_internal_values()
 
     def get_etcd_client(self):
@@ -78,18 +78,22 @@ class Settings(object):
                 return wrapper
 
     def read_internal_values(self):
-        prefix = self['etcd']['prefix']
+        base_prefix = self['etcd']['base_prefix']
         self.config_parser.read_dict(
             {
                 'etcd': {
-                    'file_prefix': join_path(prefix, '/files/'),
-                    'host_prefix': join_path(prefix, '/hosts/'),
-                    'image_prefix': join_path(prefix, '/images/'),
-                    'image_store_prefix': join_path(prefix, '/imagestore/'),
-                    'network_prefix': join_path(prefix, '/networks/'),
-                    'request_prefix': join_path(prefix, '/requests/'),
-                    'user_prefix': join_path(prefix, '/users/'),
-                    'vm_prefix': join_path(prefix, '/vms/'),
+                    'file_prefix': join_path(base_prefix, 'files/'),
+                    'host_prefix': join_path(base_prefix, 'hosts/'),
+                    'image_prefix': join_path(base_prefix, 'images/'),
+                    'image_store_prefix': join_path(base_prefix, 'imagestore/'),
+                    'network_prefix': join_path(base_prefix, 'networks/'),
+                    'request_prefix': join_path(base_prefix, 'requests/'),
+                    'user_prefix': join_path(base_prefix, 'users/'),
+                    'vm_prefix': join_path(base_prefix, 'vms/'),
+                    'counter': {
+                        'vxlan': join_path(base_prefix, 'counters/vxlan'),
+                        'tap': join_path(base_prefix, 'counters/tap')
+                    }
                 }
             }
         )
diff --git a/uncloud/configure/main.py b/uncloud/configure/main.py
index 64b40c0..f3e9717 100644
--- a/uncloud/configure/main.py
+++ b/uncloud/configure/main.py
@@ -40,18 +40,14 @@ ceph_storage_parser.add_argument('--ceph-image-pool', required=True)
 
 
 def update_config(section, kwargs):
-    uncloud_config = shared.etcd_client.get(
-        settings.config_key, value_in_json=True
-    )
+    uncloud_config = shared.etcd_client.get(settings.config_key, value_in_json=True)
     if not uncloud_config:
         uncloud_config = {}
     else:
         uncloud_config = uncloud_config.value
 
     uncloud_config[section] = kwargs
-    shared.etcd_client.put(
-        settings.config_key, uncloud_config, value_in_json=True
-    )
+    shared.etcd_client.put(settings.config_key, uncloud_config, value_in_json=True)
 
 
 def main(**kwargs):
diff --git a/uncloud/metadata/main.py b/uncloud/metadata/main.py
index d20122e..03469a5 100644
--- a/uncloud/metadata/main.py
+++ b/uncloud/metadata/main.py
@@ -84,33 +84,6 @@ class Root(Resource):
             data.value["metadata"]["ssh-keys"] += user_personal_ssh_keys
             return data.value["metadata"], 200
 
-    @staticmethod
-    def post():
-        return {"message": "Previous Implementation is deprecated."}
-        # data = etcd_client.get("/v1/metadata/{}".format(request.remote_addr), value_in_json=True)
-        # print(data)
-        # if data:
-        #     for k in request.json:
-        #         if k not in data.value:
-        #             data.value[k] = request.json[k]
-        #             if k.endswith("-list"):
-        #                 data.value[k] = [request.json[k]]
-        #         else:
-        #             if k.endswith("-list"):
-        #                 data.value[k].append(request.json[k])
-        #             else:
-        #                 data.value[k] = request.json[k]
-        #     etcd_client.put("/v1/metadata/{}".format(request.remote_addr),
-        #                     data.value, value_in_json=True)
-        # else:
-        #     data = {}
-        #     for k in request.json:
-        #         data[k] = request.json[k]
-        #         if k.endswith("-list"):
-        #             data[k] = [request.json[k]]
-        #     etcd_client.put("/v1/metadata/{}".format(request.remote_addr),
-        #                     data, value_in_json=True)
-
 
 api.add_resource(Root, "/")