Johan, Thanks for your answer.
The graph represents a social network, where users are friends of other users (followers and following). Each node has a name and is connected to other users (his friends), so the relationship is user-is-a-friend-of-another-user. Each relationship has a nickname, by which name one user knows another. Most of the graph access queries are to find who user follows or who follow a user. Each node holds user name and maybe few other parameters and a relationship holds a nickname and 1-2 other properties. Thanks in advance. Regards, Dima Gutzeit. On Mon, May 2, 2011 at 11:45 AM, Johan Svensson <jo...@neotechnology.com>wrote: > Hi, > > This will depend on types of queries, access patterns and what the > data look like. Could you provide some more information on what the > data look like, specifically relationships traversed and properties > loaded for a query? > > Regarding adding another machine to an already active cluster it is > easy. Just configure it (assign an id and point it to the cluster) > then startup it up. This will trigger replication of data to the new > machine and once that is done it will be available. > > Regards, > Johan > > On Sat, Apr 30, 2011 at 10:02 AM, Dima Gutzeit > <dima.gutz...@mailvision.com> wrote: > > Dear list members, > > > > I am building a Neo4J cluster that should hold around 2 billion of nodes > > with ~5 billion properties. Data will be mostly accessed for read, about > > 90/10. > > > > Around 200,000 concurrent users will require mostly/read access to the > > database. > > To translate it to number of queries is up to 10,000 per second. > > > > I need to calculate the sizing of such cluster, number of machines, > required > > RAM, CPU and disk space. > > > > Any suggestions ? > > > > Another questions is how complicated it to add a new machine to an active > > cluster, while system is running, its it achievable ? > > > > Thanks in advance. > > > > Regards, > > Dima Gutzeit. > _______________________________________________ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
