Merge pull request #193 from jkukul/master

Use InvalidInputException instead of OutOfNNException.

README.md

@@ -51,8 +51,8 @@ Development
 ===========
 
 Make sure to read about development
-[here](http://spotify.github.io/snakebite/development.html) and about
-testing over [here](http://spotify.github.io/snakebite/testing.html),
+[here](http://snakebite.readthedocs.org/en/latest/development.html) and about
+testing over [here](http://snakebite.readthedocs.org/en/latest/testing.html),
 hack and come back with a pull requests <3
 
 Travis CI status: [![Travis](https://api.travis-ci.org/spotify/snakebite.png)](https://travis-ci.org/spotify/snakebite)

snakebite/client.py

@@ -1496,5 +1496,5 @@ def __init__(self, hadoop_version=Namenode.DEFAULT_VERSION, effective_user=None,
         configs = HDFSConfig.get_external_config()
         nns = [Namenode(nn['namenode'], nn['port'], hadoop_version) for nn in configs['namenodes']]
         if not nns:
-            raise OutOfNNException("Tried and failed to find namenodes - couldn't created the client!")
+            raise InvalidInputException("List of namenodes is empty - couldn't create the client")
         super(AutoConfigClient, self).__init__(nns, configs.get('use_trash', False), effective_user, configs.get('use_sasl', False), configs.get('hdfs_namenode_principal', None))

test/client_test.py

@@ -70,4 +70,4 @@ def test_empty_namenodes_autoclient(self, environ_get):
         environ_get.return_value = False
         HDFSConfig.hdfs_try_paths = ()
         HDFSConfig.core_try_paths = ()
-        self.assertRaises(OutOfNNException, AutoConfigClient)
+        self.assertRaises(InvalidInputException, AutoConfigClient)