Cassandra max wait for schema agreement option

Change-Id: Iaee63632620666330c3f1b7f6b9a86cbf45b3ac7

etc/poppy.conf

@@ -67,6 +67,7 @@ password = cassandra_password
 # requires the datacenter option in [DEFAULT] to be configured.
 load_balance_strategy = RoundRobinPolicy
 consistency_level = ONE
+max_schema_agreement_wait = 10
 keyspace = poppy
 # Replication strategy to use for the keyspace. This value is plugged into
 # `map` as show in the syntax here: http://www.datastax.com/documentation/cql/3

poppy/storage/cassandra/driver.py

@@ -49,6 +49,9 @@
                help='Load balancing strategy for connecting to cluster nodes'),
     cfg.StrOpt('consistency_level', default='ONE',
                help='Consistency level of your cassandra query'),
+    cfg.IntOpt('max_schema_agreement_wait', default=10,
+               help='The maximum duration (in seconds) that the driver will'
+               ' wait for schema agreement across the cluster.'),
     cfg.StrOpt('keyspace', default='poppy',
                help='Keyspace for all queries made in session'),
     cfg.DictOpt(
@@ -97,7 +100,8 @@ def _connection(conf, datacenter, keyspace=None):
         auth_provider=auth_provider,
         load_balancing_policy=load_balancing_policy,
         port=conf.port,
-        ssl_options=ssl_options
+        ssl_options=ssl_options,
+        max_schema_agreement_wait=conf.max_schema_agreement_wait
     )
 
     session = cluster_connection.connect()

tests/unit/storage/cassandra/test_driver.py

@@ -43,6 +43,9 @@
                help='Load balancing strategy for connecting to cluster nodes'),
     cfg.StrOpt('consistency_level', default='ONE',
                help='Consistency level of your cassandra query'),
+    cfg.IntOpt('max_schema_agreement_wait', default=10,
+               help='The maximum duration (in seconds) that the driver will'
+               ' wait for schema agreement across the cluster.'),
     cfg.DictOpt(
         'replication_strategy',
         default={