I'd suggest you have a look at Neo4j and OrientDB.
On Thu, Dec 15, 2011 at 2:23 AM, Praveen Sripati
> Thanks for the response. Are there any open source frameworks for online
> querying of Graphs?
> On Thu, Dec 15, 2011 at 12:37 AM, Avery Ching <ach...@apache.org> wrote:
>> Hi Praveen,
>> You are right that Giraph is an offline graph computation infrastructure,
>> not an online graph database. You could try using MySQL, HBase, Cassandra,
>> etc for online querying.
>> On 12/14/11 10:24 AM, Praveen Sripati wrote:
>> If I am not wrong Giraph is for batch processing similar to Hadoop. But,
>> when I look for directions in Google Maps, the directions are returned
>> within seconds. The 'shortest path algorithm' might be used. Are there any
>> frameworks to get instantaneous results from graphs from distributed