Archive for the ‘Rexster’ Category

Bigdata and Blueprints

Tuesday, May 27th, 2014

Bigdata and Blueprints

From the webpage:

Blueprints is an open-source property graph model interface useful for writing applications on top of a graph database. Gremlin is a domain specific language for traversing property graphs that comes with an excellent REPL useful for interacting with a Blueprints database. Rexster exposes a Blueprints database as a web service and comes with a web-based workbench application called DogHouse.

To get started with bigdata via Blueprints, Gremlin, and Rexster, start by getting your bigdata server running per the instructions here.

Then, go and download some sample GraphML data. The Tinkerpop Property Graph is a good starting point.

Just in case you aren’t familiar with bigdata(R):

bigdata(R) is a scale-out storage and computing fabric supporting optional transactions, very high concurrency, and very high aggregate IO rates. The bigdata RDF/graph database can load 1B edges in under one hour on a 15 node cluster. Bigdata operates in both a single machine mode (Journal), highly available replication cluster mode (HAJournalServer), and a horizontally sharded cluster mode (BigdataFederation). The Journal provides fast scalable ACID indexed storage for very large data sets, up to 50 billion edges. The HAJournalServer adds replication, online backup, horizontal scaling of query, and high availability. The federation provides fast scalable shard-wise parallel indexed storage using dynamic sharding and shard-wise ACID updates and incremental cluster size growth. Both platforms support fully concurrent readers with snapshot isolation. (

So, this is a major event for Blueprints.

I first saw this in a tweet by Marko A. Rodriguez.

TinkerPop 2.4.0 Released (Gremlin Without a Cause)

Friday, August 9th, 2013

TinkerPop 2.4.0 Released (Gremlin Without a Cause) by Marko A. Rodriguez.

From the post:

TinkerPop 2.4.0 has been released under the name “Gremlin without a Cause” (see attached logo). The last release was back in March of 2013, so there are lots of new features/bugfixes/optimizations in the latest 2.4.0 release. Here is the best-of-the-best of each project along with the full release notes.

NOTE: 2.4.0 jars have been deployed to Apache Central Repo and ready for inclusion.

Another offering for your summer holiday enjoyment!

TinkerPop 2.3.0 has been unleashed

Thursday, March 21st, 2013

TinkerPop 2.3.0 has been unleashed by Marko A. Rodriguez.

Release notes for:







TinkerPop2 Release

Thursday, May 24th, 2012

A message from Marko Rodriguez announced the release of TinkerPop2 with notes on the major features of each:

– Massive changes to blueprints-core API
– TreePipe added for exposing the spanning tree of a traversal
– Automatic path and query optimizations (download)
– FramedGraph is simply a wrapper graph in the Blueprints sense
– Synchronicity with the Blueprints API (download)

BTW, Marko says:

As you may know, there are big changes to the API: package renaming, new core API method names, etc. While this may be shocking, it is all worth it. In 2 weeks, there is going to be a release of something very big for which TinkerPop2 will be a central piece of the puzzle. Stay tuned and get ready for a summer of insane, crazy graph madness.

So, something to look forward to!

A TinkerPop Story

Wednesday, December 14th, 2011

A TinkerPop Story

From the post:

In a time long, long right now and a place far, far within, there exists a little green gremlin named…well, Gremlin. Gremlin lives in a place known as TinkerPop. For those who think of a “place” as some terrestrial surface coating a sphere that is circling one of the many massive fiery nuclear reactors in the known universe, TinkerPop is that, yet at the same time, a wholly different type of place indeed.

In a day of obscure (are there any other kind?) errors and annoyances, this is an absolute delight!

Highly recommended!

TinkerPop 2011 Winter release!

Friday, December 9th, 2011

TinkerPop 2011 Winter release!

Which includes:

New homepage design:

Blueprints 1.1 (Blueberry):

Frames 0.6 (Truss):

Gremlin 1.4 (Ain’t No Thing But a Chicken Wing):

Pipes 0.9 (Sink):

Rexster 0.7 (Brian)

Rexster-Kibbles 0.7

You didn’t really want to spend all weekend holiday shopping and hanging out with relatives did you? ūüėČ

An Introduction to Tinkerpop

Saturday, October 8th, 2011

An Introduction to Tinkerpop by Takahiro Inoue.

Excellent introduction to the Tinkerpop stack.

Furnace — A Property Graph Algorithms Package

Sunday, September 25th, 2011

Furnace — A Property Graph Algorithms Package

Marko Rodriguez posted the following note to the Grelim-users mailing list today:


For many months, the TinkerPop community has been trying to realize the best way to go about providing a graph analysis package to the TinkerPop stack ( ). With the increased flexibility and power of Pipes and the partitioning of Gremlin into multiple JVM languages, we feel that the stack is organized correctly now to support Furnace — A Property Graph Algorithms Package.
( if the domain hasn’t propagated to your DNS yet )

The project is currently just stubbed, but overtime you can expect the ability to evaluate standard (and non-standard) graph analysis algorithms over Blueprints-enabled graphs in a way that respects explicit and implicit associations in the graph. In short, it will implement the ideas articulated in:

This will be possible due to Pipes and the ability to represent abstract relationships using Pipes, Gremlin_groovy (and the upcoming Gremlin_scala). Moreover, while more thought is needed, there will be a way to talk at the Frames-levels ( and thus, calculate graph algorithms according to one’s domain model. Ultimately, in time, as Furnace develops, we will see a Rexster-Kibble that supports the evaluation of algorithms via Rexster.

While the project is still developing, please feel free to contribute ideas and/or participate in the development process. To conclude, we hope people are excited about the promises that Furnace will bring by raising the processing abstraction level above the imperative representations of Pipes/Gremlin.

Thank you,

You have been waiting for the opportunity to contribute to the Tinkerpop stack, particularly on graph analysis, so here is your chance! Seriously, you need to forward this to every graph person, graph project and graduate student taking graph theory.

We can use simple graphs and hope (pray?) the world is a simple place. Or use more complex graphs to model the world. Do you feel lucky? Do you?

Tinkerpop Stack Releases

Sunday, September 18th, 2011

Marko Rodriguez announced a new round of Tinkerpop Stack Releases today:

The TinkerPop stack went through another round of releases this morning.

  • Blueprints 1.0 (Blueprints): =
  • Pipes 0.8 (Cleaner): =
  • Frames 0.5 (Beams): =
  • Gremlin 1.3 (On the Case): =
  • Rexster 0.6 (Dalmatian): =
    • Rexster-Kibbles 0.6 =

For those using Gremlin, Pipes, and Rexster, be sure to look through the release notes as APIs have changed slightly. Here are the main points of this release:

  • Blueprints now has transaction buffers and Neo4jBatchGraph for bulk loading a Neo4j graph.
  • Pipes makes use of FluentPipeline and PipeFunction which yields great expressivity and further opens up the framework to other JVM languages.
  • Gremlin is ~2.5x faster in many situations and has relegated most of its functionality to Pipes and native Java.
  • Rexster supports Neo4j High Availability and more updates to its REST API.

TinkerPop – New Releases

Monday, August 1st, 2011

Good news from Marko Rodriguez:

TinkerPop just released a new round of stable releases.

Blueprints 0.9 (Mavin) –

Pipes 0.7 (PVC) –

Frames 0.4 (Studs) –

Gremlin 1.2 (New Sheriff in Town) –

Rexster 0.5 (Dog Star) –

Here is the main points with each release:

  • Blueprints:
    • Vertex API changed so now you have Vertex.getInEdges(String‚Ķ labels) and Vertex.getOutEdges(String‚Ķ labels)
    • Heavy development on GraphSail which turns any IndexableGraph into Sail RDF store
  • Pipes:
    • Introduced PipeClosure pattern which allows for closure-based pipes in native Java
    • Migrated all “Gremlin-specific pipes” (closure-based) to Pipes
    • Opening up the stage for data flow traversal languages for any JVM language
  • Frames:
    • Added helper interfaces VertexFrame and EdgeFrame
  • Gremlin:
    • Support the easy definition of new steps with
    • Mass migration of all “Gremlin-specific pipes” to Pipes
    • Support for processing closures in aggregate, groupCount, and paths
  • Rexster:
    • Added RexPro (the future foundation for the Rexster’s multi-protocol infrastructure).
    • Added (RexsterConsole) to allow remote “mysql>”-style interactions via any JSR 223-based JVM language
    • JSON serialization inherited from Blueprints (consistent throughout TinkerPop stack)

Cloning Tinkerpop Repositories

Friday, July 1st, 2011

Instructions on creating a local copy of the Gremlin wiki (posted to the mailing list by Pierre De Wilde).

The instructions (with minor formatting changes) from his post:

For those who want a local copy of Gremlin wiki:

cd gremlin
git clone
cd doc/wiki

Open your browser at http://localhost:4567 and ta-da…

Moreover, the wiki is searchable and (unlike the github version) it’s printer-fiendly.

Gollum is a simple wiki system built on top of Git that powers GitHub Wikis.

To install Gollum, use RubyGems (

[sudo] gem install gollumcd cd

Of course, the same procedure may be applied for other Tinkerpop repositories (blueprints, pipes, frames, rexster, rexster-kibbles).

Unfortunately, gollum cannot access multiple repositories at once, so you will need to launch several versions with a different port (gollum -port xxxx)

Thanks Pierre!

TinkerPop Releases – Gremlin 1.0/Rexster 0.3

Monday, May 9th, 2011

Marko Rodriguez announced the release of Gremlin 1.0 and Rexster 0.3 (graph server) along with other releases:

Blueprints 0.7 (Patrick):
A property graph interface.

Frames 0.2 (Huff and Puff):
An object to graph framework.

Gremlin 1.0 (Gremlin):
A graph traversal language.

Pipes 0.5 (Drain):
A data flow framework using process graphs.

Rexster 0.3 (Dog Eat Dog):
A RESTful graph shell.

TinkerPop Updates

Thursday, March 3rd, 2011

From the update announcement on 1 March 2011.

Today we bring you a new round of releases. TinkerPop is pleased to announce:

Blueprints 0.5 (Scooby) –
Pipes 0.3.1 (Mario) –
Gremlin 0.8 (Grem Stefani) –
Rexster 0.2 (Dog House) –

The graph database work and associated materials is looking more and more attractive.

Look for something specific about applying them to topic maps in the near term.