Hi Henry,

I'm not from Amazon, but it looks like it has no relation to JanusGraph. From what I've read, I think it might have some Blazegraph DNA in it: http://www.snee.com/bobdc.blog/2017/12/sparql-and-amazon-web-services.html.

--Ted

On Friday, February 9, 2018 at 12:56:45 PM UTC-6, Henry Saputra wrote:

Sorry to follow up on old thread, anyone from AWS could chime whether Neptune is using or base on JanusGraph or totally build from scratch?

Trying to build case to use JanusGraph rather than come up with your own Graph stack in my work.

Thanks,

- Henry

On Fri, Dec 8, 2017 at 11:23 AM, <mcha...@...> wrote:

Cassandra and DynamDB have similar eventually consistent, scale-out, cluster types of architectures.

They are "essentially" unlimited in the amount of data, or cluster size.

Neptune - as of today - is limited to 64TB of data.

it has one write master (limiting write capacity) and up to 15 read replicas (liming read capacity).

they project that means 100B relations in graph DB - subject to size and number of string properties

On Friday, December 8, 2017 at 12:20:23 PM UTC-5, Stephen Mallette wrote:

That's an interesting statement....could you elaborate?

On Fri, Dec 8, 2017 at 11:39 AM, <mc...@...> wrote:

I'm sure that is part of it. However Neptune does not scale out like DynamDB does.

For some people, Neptune will not work.

On Thursday, December 7, 2017 at 1:59:47 PM UTC-5, Robert Dale wrote:

It probably has to do with the fact that Amazon recently announced their own graph technology - https://aws.amazon.com/neptune/

Robert Dale

On Thu, Dec 7, 2017 at 1:16 PM, <mc...@...> wrote:

In conversations with AWS, they've expressed little willingness to continue to support this backend.

I am very interested in moving from a self-managed cassandra-on-aws graph, to a managed DynamoDB graph.

My company has expressed misgivings about basing our solution on an unsupported code base.

Is it possible that AWS could be persuaded to contribute the code to JanusGraph, and that JanusGraph would be willing to maintain it going forward?

 what is needed to make that happen?

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