Thanks a lot Rick can you please provide more details on issues which you faced while using this approach and share some code with us . Had you decided about this at design time itself and designed your graph db schema accordingly? Is there much perceived performance penalties if there are a large number of such references spanning physical boundaries?
On 7/2/11, Rick Bullotta <[email protected]> wrote: > We are using node-id property references (the node id as a property), > qualified with a "logical server" reference, to provide this type of binding > across graphs. If you combine these with an index, you can actually get a > lot of the functionality of relationships "cross graph", spanning physical > boundaries. Of course, as Craig points out, this all has to be done at the > application level, including dealing with cascading deletes when a node is > removed from one graph, ensuring that references to it in another graph are > removed/redirected. > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Craig Taverner > Sent: Saturday, July 02, 2011 6:03 AM > To: Neo4j user discussions > Subject: Re: [Neo4j] reify links with other neo4j databases located on > different distributed servers > > As far as I know there is no internal support for transparent traversals > across shards. Generally people are doing that in the application layer. > However, I think there might be a middle ground of sorts. I we modify the > relationship expander, I could imagine that relationships that are between > shards could be modified to return node on the other shard. This would make > the traversal return nodes across shards, but since I've not tried this > myself, I am uncertain if there are other consequences. > > On Sat, Jul 2, 2011 at 4:03 AM, Aliabbas Petiwala > <[email protected]>wrote: > >> Hi, >> >> I cannot figure out how my application logic can reify links with >> other neo4j databases located on different distributed servers? >> hence , how can i make the traversals and graph algorithms transparent >> to the location of the different databases ? >> -- >> Aliabbas Petiwala >> M.Tech CSE >> _______________________________________________ >> Neo4j mailing list >> [email protected] >> https://lists.neo4j.org/mailman/listinfo/user >> > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > -- Aliabbas Petiwala M.Tech CSE _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
