Re: OPP and controlling partitioning

2010-11-18 Thread Claudio Martella
d > to answer the queries will be distributed around the cluster. > > IMHO the best way to learn how to do the things your are talking about > is to build the basic app first and fail fast. There are a lot of new > mistakes to make when starting out with Cassandra. > > Hope that h

Re: OPP and controlling partitioning

2010-11-17 Thread Claudio Martella
on the list having serious issues with network overhead. > > You may also want to consider flock db from twitter, it sits on > top of a sharded MySQL db https://github.com/twitter/flockdb > > Hope that helps. > Aaron > > > On 16 Nov, 2010,

OPP and controlling partitioning

2010-11-15 Thread Claudio Martella
Hello list, I'm in the process of writing an application which uses cassandra as a "storage" backend. The application is a graph database and it's supposed to be a baseline application for further development in the field. The idea is to implement a property graph: a multigraph (multiple edges co

complexity of get(key) and get(key, column) operations #2

2010-09-19 Thread Claudio Martella
Hello list, sorry, i forgot a verb... what i meant is "the complexity of the lookup of a row or a row+columns". so: get(key) and get(key, column). Thanks -- Claudio Martella Digital Technologies Unit Research & Development - Analyst TIS innovation park Via Siemens 19 |

complexity of get(key) and get(key, column) operations

2010-09-19 Thread Claudio Martella
e vertices with their properties as columns and a column family where i store the vertices with in-edges and out-edges as columns. Can somebody comment about this? TIA Claudio -- Claudio Martella Digital Technologies Unit Research & Development - Analyst TIS innovation park Via Siemens 19 | S