Hi, We looking into the options for sharding Neo4j. Using Gizzard (which is a sharding framework from Twitter) seemed to be one of the possibilities. I posting here so that everyone can evaluate this possibility and offer suggestions. Did anyone else try sharding of Neo4j?
I have the following questions and possible solutions. The problem after sharding would be representation of vertices which are outside of the a shard and querying (traversal) on top of the sharded graph. Eg: Let there be a straight line graph between 3 vertices (A --> B --> C) and vertices A, B are in shard-1 and vertex C in shard-2. Then in shard-1, the out-edge of B should point to something but the actual vertex C's info would be in shard-2. In shard-1, B can point to an alias of C and rest of C's info (i.e. property & relationship info) would be in shard-2. Further we can associate a property with each vertex which indicates whether a vertex is in local shard or foreign shard. For traversal over sharded graph, I think we can extend the Neo4j's traversal so that it handle's this case (look into another shard where vertex C is and continue the traversal). What are your suggestions on this? Thank you. Regards, Raghava. _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
