New node_info API

elasticsearch/client/cluster.py

@@ -112,9 +112,8 @@ class ClusterClient(NamespacedClient):
             _make_path('_nodes', node_id, 'stats', metric, fields), params=params)
         return data
 
-    @query_params('all', 'clear', 'http', 'jvm', 'network', 'os', 'plugin',
-        'process', 'settings', 'thread_pool', 'timeout', 'transport')
-    def node_info(self, node_id=None, params=None):
+    @query_params('flat_settings')
+    def node_info(self, node_id=None, metric=None, params=None):
         """
         Retrieve one or more (or all) of the cluster nodes' information.
         `<http://elasticsearch.org/guide/reference/api/admin-cluster-nodes-info/>`_
@@ -122,21 +121,16 @@ class ClusterClient(NamespacedClient):
         :arg node_id: A comma-separated list of node IDs or names to limit the
             returned information; use `_local` to return information from the node
             you're connecting to, leave empty to get information from all nodes
-        :arg all: Return all available information
-        :arg clear: Reset the default settings
-        :arg http: Return information about HTTP
-        :arg jvm: Return information about the JVM
-        :arg network: Return information about network
-        :arg os: Return information about the operating system
-        :arg plugin: Return information about plugins
-        :arg process: Return information about the Elasticsearch process
-        :arg settings: Return information about node settings
-        :arg thread_pool: Return information about the thread pool
-        :arg timeout: Explicit operation timeout
-        :arg transport: Return information about transport
+        :arg metric: A comma-separated list of metrics you wish returned. Leave
+            empty to return all. Possible options are "settings", "os",
+            "process", "jvm", "thread_pool", "network", "transport", "http" and
+            "plugin"
+        :arg flat_settings: Return settings in flat format (default: false)
         """
+        if not node_id and metric:
+            node_id = '_all'
         _, data = self.transport.perform_request('GET',
-            _make_path('_cluster', 'nodes', node_id), params=params)
+            _make_path('_nodes', node_id, metric), params=params)
         return data
 
     @query_params('delay', 'exit')