Which Giraph I/O format can be used for property graph?

Question

There are several built-in input output format in Giraph, but all those formats support only numerical ids & value.

• So is there a way to process property graph such that both vertices & edges can have multiple key & values or anything close? I'm specifically interested in whether edge can have attributes like timeCreated or type.
• Also, is there some convention to use only numerical ids & data for faster processing? Specifically, is the property graph from graph database usually filtered to have only ids & value before batch processing using Giraph?

Answer 1

At least from Neo4j you can use the csv export of node- and relationship-id's to generate the data for giraph.

You can use something like this:

http://neo4j.com/blog/export-csv-from-neo4j-curl-cypher-jq/

and you can use neo4j-import to import that csv data, or LOAD CSV for more advanced structural updates.