cassandra summit - what's new in apache tinkerpop?

What’s New in Apache TinkerPop?Open Source Graph Computing Framework

http://tinkerpop.incubator.apache.org/

Stephen Mallette - @spmallette

© 2015. All Rights Reserved.

By Andrea Mann from London, United Kingdom (Flickr Uploaded by Hohum) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons


Georgius Agricola, De re metallica 1556


“Woman at spinning wheel with man carding” Smithfield Decretals (British Library, Royal 10 E. IV, fol. 147v), c. 1340“Carding, Spinning and Weaving” by Giovanni Boccaccio from De claris mulieribus 15th Century


London, British Library, Royal 18 E.iii (15th century) [Public domain], via Wikimedia Commons


[Public domain], via Wikimedia Commons


By Unknown. Photo credit: Yale University Art Gallery. In the Public Domain. [Public domain], via Wikimedia Commons

[Public domain], via Wikimedia Commons


By Dogcow (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons


By Adam Schuster (Flickr: Proto IBM) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

By Arnold Reinhold [CC BY-SA 2.5 (http://creativecommons.org/licenses/by-sa/2.5)], via Wikimedia Commons


label: personname: Stephen

label: booktitle: Connections

label: personname: James

label: bought label: wrote

Graph Data Structure


TinkerPop 2.0

TinkerPop 3.0

The TinkerPop Stack


The TinkerPop Stack


Gremlin in TinkerPop3is NOT “just ”

It is advised that not use expressionsƛ

supports BOTH imperative and declarative querying


$ bin/gremlin.sh

\,,,/ (o o)-----oOOo-(3)-oOOo-----plugin activated: tinkerpop.serverplugin activated: tinkerpop.utilitiesplugin activated: tinkerpop.tinkergraphgremlin>


$ bin/gremlin.sh

\,,,/ (o o)-----oOOo-(3)-oOOo-----plugin activated: tinkerpop.serverplugin activated: tinkerpop.utilitiesplugin activated: tinkerpop.tinkergraphgremlin> graph = GraphFactory.open("graph.properties")==>tinkergraph[vertices:0 edges:0]gremlin>


$ bin/gremlin.sh

\,,,/ (o o)-----oOOo-(3)-oOOo-----plugin activated: tinkerpop.serverplugin activated: tinkerpop.utilitiesplugin activated: tinkerpop.tinkergraphgremlin> graph = GraphFactory.open("graph.properties")==>tinkergraph[vertices:0 edges:0]gremlin> graph.io(gryo()).readGraph('data.kryo')==>nullgremlin> graph==>tinkergraph[vertices:1933 edges:4125]gremlin>

discussion

wrote

hasResponse

person response

participatesIn hasRoot


$ bin/gremlin.sh

\,,,/ (o o)-----oOOo-(3)-oOOo-----plugin activated: tinkerpop.serverplugin activated: tinkerpop.utilitiesplugin activated: tinkerpop.tinkergraphgremlin> graph = GraphFactory.open("graph.properties")==>tinkergraph[vertices:0 edges:0]gremlin> graph.io(gryo()).readGraph('data.kryo')==>nullgremlin> graph==>tinkergraph[vertices:1933 edges:4125]gremlin> g = graph.traversal()==>graphtraversalsource[tinkergraph[vertices:1933 edges:4125], standard]gremlin>


gremlin> g.V(4608)==>v[4608]

4608

person

g.V(4608)

“Find the vertex with id 4608”


gremlin> g.V(4608).values('userName')==>Renlit

4608

person

g.V(4608)

Renlit

userName

.values('userName')

“Get the value of the ‘userName’ property on vertex 4608”


gremlin> g.V(4608).out('wrote')==>v[354560]==>v[640768]...==>v[466432]

4608 wrote

person response

g.V(4608) .out('wrote')

“Find the responses posted by ‘Renlit’”


gremlin> g.V(4608).out('wrote').count()==>67

4608 wrote

person response

.out('wrote')

“Find the number of responses posted by ‘Renlit’”

g.V(4608) .count()

67


gremlin> t = g.V(4608).out('wrote').count();null==>nullgremlin> t.strategies.toList()==>ConjunctionStrategy==>IncidentToAdjacentStrategy==>AdjacentToIncidentStrategy==>IdentityRemovalStrategy==>DedupBijectionStrategy==>MatchPredicateStrategy==>RangeByIsCountStrategy==>TinkerGraphStepStrategy==>ProfileStrategy==>EngineDependentStrategy==>ComputerVerificationStrategy==>StandardVerificationStrategy


t.strategies.toList()

StrategyApplication

Original Query g.V(4608).out('wrote').count()


AdjacentToIncidentStrategy

Post-Strategies g.V(4608).outE('wrote').count()

ConjunctionStrategyIncidentToAdjacentStrategy

IdentityRemovalStrategyDedupBijectionStrategyMatchPredicateStrategyRangeByIsCountStrategyTinkerGraphStepStrategyProfileStrategyEngineDependentStrategyComputerVerificationStrategyStandardVerificationStrategy

gremlin> g.V(4608).as('a').out('wrote').out('hasResponse').in('wrote') .where(neq('a')).groupCount().next()==>v[5376]=4==>v[2304]=2==>v[5888]=7...==>v[10496]=1

4608 wrote

person response

hasResponse

hasResponse

hasResponse

...

response

wrote

wrote

wrote

...

person person

4608

g.V(4608).as('a')

.out('wrote')

.out('hasResponse')

.in('wrote') .where(neq('a'))

.groupCount()

“Get a distribution over the authors who replied to ‘Renlit’”


gremlin> g.V(4608).out('wrote').values('responseLevel').groupCount()==>[1:11, 2:19, 3:22, 4:9, 5:3, 6:3]gremlin>

4608 wrote

person response

g.V(4608) .out('wrote')

...

responseLevel

.values('responseLevel')

.groupCount()

“Get a distribution over the ‘responseLevel’ value for posts by ‘Renlit’”


gremlin> g.V().has('type','response').values('responseLevel').groupCount()==>[1:358, 2:796, 3:445, 4:150, 5:57, 6:13, 7:4, 8:1]gremlin>

response

g.V()

.has('type','response')

...

responseLevel

.values('responseLevel')

.groupCount()

type response

“Get a distribution over the ‘responseLevel’ for all posts in the graph”

gremlin> g.V(4608).out('wrote').values('responseLevel').groupCount()==>[1:11, 2:19, 3:22, 4:9, 5:3, 6:3]gremlin> g.V().has('type','response').values('responseLevel').groupCount()==>[1:358, 2:796, 3:445, 4:150, 5:57, 6:13, 7:4, 8:1]gremlin>

g.V(4608).out('wrote') .values('responseLevel') .groupCount()

g.V().has('type','response') .values('responseLevel') .groupCount()


gremlin> :install org.apache.tinkerpop hadoop-gremlin 3.0.0-incubating==>Loaded: [org.apache.tinkerpop, hadoop-gremlin, 3.0.0-incubating] - restart the console to use [tinkerpop.hadoop]gremlin> :exit

... $ bin/gremlin.sh \,,,/ (o o)-----oOOo-(3)-oOOo-----plugin activated: tinkerpop.serverplugin activated: tinkerpop.utilitiesplugin activated: tinkerpop.tinkergraphgremlin> :plugin use tinkerpop.hadoop==>tinkerpop.hadoop activatedgremlin> hdfs.copyFromLocal('data.kryo', 'data.kryo')==>nullgremlin> hdfs.ls()==>rw-r--r-- smallette supergroup 5782840 data.kryogremlin>


gremlin> graph = GraphFactory.open('conf/hadoop/data-gryo.properties')==>hadoopgraph[gryoinputformat->gryooutputformat]gremlin> g = graph.traversal(computer(SparkGraphComputer))==>graphtraversalsource[hadoopgraph[gryoinputformat->gryooutputformat],sparkgraphcomputer]


gremlin> graph = GraphFactory.open('conf/hadoop/data-gryo.properties')==>hadoopgraph[gryoinputformat->gryooutputformat]gremlin> g = graph.traversal(computer(SparkGraphComputer))==>graphtraversalsource[hadoopgraph[gryoinputformat->gryooutputformat],sparkgraphcomputer]gremlin> g.V(4608).out('wrote').values('responseLevel').groupCount()==>[1:11, 2:19, 3:22, 4:9, 5:3, 6:3]gremlin> g.V().has('type','response').values('responseLevel').groupCount()==>[1:358, 2:796, 3:445, 4:150, 5:57, 6:13, 7:4, 8:1]


g.V(4608)

groupCount()

out().in()

g.V().Any Graph System

Neo4j

Titan

Sqlg

BlueM

ix

Hadoop

Giraph

Spark

OrientD

B

...

gremlin> :plugin use tinkerpop.gephi==>tinkerpop.gephi activatedgremlin> :remote connect tinkerpop.gephi==>Connection to Gephi - http://localhost:8080/workspace0 with stepDelay:1000, startRGBColor:[0.0, 1.0, 0.5], colorToFade:g, colorFadeRate:0.7, startSize:20.0,sizeDecrementRate:0.33


gremlin> :plugin use tinkerpop.gephi==>tinkerpop.gephi activatedgremlin> :remote connect tinkerpop.gephi==>Connection to Gephi - http://localhost:8080/workspace0 with stepDelay:1000, startRGBColor:[0.0, 1.0, 0.5], colorToFade:g, colorFadeRate:0.7, startSize:20.0,sizeDecrementRate:0.33gremlin> :> graph==>tinkergraph[vertices:1933 edges:4125]


gremlin> :> graph==>tinkergraph[vertices:1933 edges:4125]


gremlin> g.V(10240).values('userName')==>Nayagremlin> g.V(5888).values('userName')==>Loret


gremlin> subGraph = g.V(10240,5888).repeat(__.outE().subgraph('subGraph').inV()) .times(10) .cap('subGraph').next()==>tinkergraph[vertices:1152 edges:1343]gremlin> :> subGraph


Naya

Loret

gremlin> :remote config visualTraversal subGraph svg==>Connection to Gephi - http://localhost:8080/workspace0 with stepDelay:1000, startRGBColor:[0.0, 1.0, 0.5], colorToFade:g, colorFadeRate:0.7, startSize:20.0,sizeDecrementRate:0.33gremlin> svg==>graphtraversalsource[tinkergraph[vertices:1152 edges:1343], standard]gremlin> svg.strategies.toList()==>ConjunctionStrategy==>IncidentToAdjacentStrategy==>AdjacentToIncidentStrategy==>IdentityRemovalStrategy==>FilterRankingStrategy==>MatchPredicateStrategy==>RangeByIsCountStrategy==>TinkerGraphStepStrategy==>EngineDependentStrategy==>GephiTraversalVisualizationStrategy==>ProfileStrategy==>ComputerVerificationStrategy


gremlin> :> svg.V(10240).as('x').out('wrote').out('hasResponse').in('wrote') .where(neq('x')).groupCount()==>[v[5888]:4]


TakeawaysIf you have connected data, use a Graph DB

If you use a Graph DB, consider

If you use , get started with Gremlin Console


Acknowledgements

Ketrina Yim@KetrinaYim

Artist behind Gremlin and his friends

Joe Leehttp://jml3designz.com/

Graphic designer providing support on this presentation

Apache TinkerPophttp://tinkerpop.incubator.apache.org/

The TinkerPop Community


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