Using a new KeySpaces in Titan Cassandra and persisting data

I have just started using Titan over Cassandra. I am new to Titan and also new to the the Graph Database Concept. Just followed the instructions on github and wiki. ``` Configuration conf = new BaseConfiguration(); conf.setProperty("storage.backend", "cassandra"); conf.setProperty("storage.hostname", "127.0.0.1"); TitanGraph g = TitanFactory.open(conf); ``` This is how I opened the graph. I understand that the default key space is `titan`. I created some nodes and relations in the default key space. I did Indexing on the vertex and queried the nodes and were able to iterate through the results. Now my questions - 1) How do I set a new Key Space ? I tried using the property ``` conf.setProperty("storage.keyspace ", "newkeyspace"); ``` Unfortunately, when I checked the cassandra keyspaces, I could only find `titan`. There was no keyspace by the name `newkeyspace`. What could be the reason? 2) How do I persist a graph have been created? for example, ``` g.createKeyIndex("name", Vertex.class); Vertex juno = g.addVertex(null); juno.setProperty("name", "juno"); juno.setProperty("type", "node"); Vertex juno1 = g.addVertex(null); juno1.setProperty("name", "juno"); juno1.setProperty("type", "node1"); ``` This is one sample graph. Once I issue a query of the form ``` Iterator<Vertex> junoIterator = g.getVertices("name", "juno") .iterator(); while (junoIterator.hasNext()) { Vertex vertex = (Vertex) junoIterator.next(); System.out.println(vertex.getProperty("type")); } ``` My expected result is ``` node node1 ``` The same query should work fine once I comment the following segment - ``` /*g.createKeyIndex("name", Vertex.class); Vertex juno = g.addVertex(null); juno.setProperty("name", "juno"); juno.setProperty("type", "node"); Vertex juno1 = g.addVertex(null); juno1.setProperty("name", "juno"); juno1.setProperty("type", "node1");*/ ``` Here, what I believe is that the nodes, relations and index already have been built and is persisted in some datastore. Am I of the wrong belief? Please advice.