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From "York, Brennon" <Brennon.Y...@capitalone.com>
Subject Re: Implementing TinkerPop on top of GraphX
Date Thu, 06 Nov 2014 23:25:16 GMT
This was my thought exactly with the TinkerPop3 release. Looks like, to move this forward,
we’d need to implement gremlin-core per <http://www.tinkerpop.com/docs/3.0.0.M1/#_implementing_gremlin_core>.
The real question lies in whether GraphX can only support the OLTP functionality, or if we
can bake into it the OLAP requirements as well. At a first glance I believe we could create
an entire OLAP system. If so, I believe we could do this in a set of parallel subtasks, those
being the implementation of each of the individual API’s (Structure, Process, and, if OLAP,
GraphComputer) necessary for gremlin-core. Thoughts?


From: Kyle Ellrott <kellrott@soe.ucsc.edu<mailto:kellrott@soe.ucsc.edu>>
Date: Thursday, November 6, 2014 at 12:10 PM
To: Kushal Datta <kushal.datta@gmail.com<mailto:kushal.datta@gmail.com>>
Cc: Reynold Xin <rxin@databricks.com<mailto:rxin@databricks.com>>, "York, Brennon"
<brennon.york@capitalone.com<mailto:brennon.york@capitalone.com>>, "dev@spark.apache.org<mailto:dev@spark.apache.org>"
<dev@spark.apache.org<mailto:dev@spark.apache.org>>, Matthias Broecheler <matthias@thinkaurelius.com<mailto:matthias@thinkaurelius.com>>
Subject: Re: Implementing TinkerPop on top of GraphX

I still have to dig into the Tinkerpop3 internals (I started my work long before it had been
released), but I can say that to get the Tinerpop2 Gremlin pipeline to work in the GraphX
was a bit of a hack. The whole Tinkerpop2 Gremlin design was based around streaming pipes
of data, rather then large distributed map-reduce operations. I had to hack the pipes to aggregate
all of the data and pass a single object wrapping the GraphX RDDs down the pipes in a single
go, rather then streaming it element by element.
Just based on their description, Tinkerpop3 may be more amenable to the Spark platform.

Kyle


On Thu, Nov 6, 2014 at 11:55 AM, Kushal Datta <kushal.datta@gmail.com<mailto:kushal.datta@gmail.com>>
wrote:
What do you guys think about the Tinkerpop3 Gremlin interface?
It has MapReduce to run Gremlin operators in a distributed manner and Giraph to execute vertex
programs.

The Tinkpop3 is better suited for GraphX.

On Thu, Nov 6, 2014 at 11:48 AM, Kyle Ellrott <kellrott@soe.ucsc.edu<mailto:kellrott@soe.ucsc.edu>>
wrote:
I've taken a crack at implementing the TinkerPop Blueprints API in GraphX (
https://github.com/kellrott/sparkgraph ). I've also implemented portions of
the Gremlin Search Language and a Parquet based graph store.
I've been working out finalize some code details and putting together
better code examples and documentation before I started telling people
about it.
But if you want to start looking at the code, I can answer any questions
you have. And if you would like to contribute, I would really appreciate
the help.

Kyle


On Thu, Nov 6, 2014 at 11:42 AM, Reynold Xin <rxin@databricks.com<mailto:rxin@databricks.com>>
wrote:

> cc Matthias
>
> In the past we talked with Matthias and there were some discussions about
> this.
>
> On Thu, Nov 6, 2014 at 11:34 AM, York, Brennon <
> Brennon.York@capitalone.com<mailto:Brennon.York@capitalone.com>>
> wrote:
>
> > All, was wondering if there had been any discussion around this topic
> yet?
> > TinkerPop <https://github.com/tinkerpop> is a great abstraction for
> graph
> > databases and has been implemented across various graph database backends
> > / gaining traction. Has anyone thought about integrating the TinkerPop
> > framework with GraphX to enable GraphX as another backend? Not sure if
> > this has been brought up or not, but would certainly volunteer to
> > spearhead this effort if the community thinks it to be a good idea!
> >
> > As an aside, wasn¹t sure if this discussion should happen on the board
> > here or on JIRA, but a made a ticket as well for reference:
> > https://issues.apache.org/jira/browse/SPARK-4279
> >
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