<s>
JanusGraph	B-Operating_System
is	O
an	O
open	O
source	O
,	O
distributed	O
graph	B-Application
database	I-Application
under	O
The	B-Operating_System
Linux	I-Operating_System
Foundation	I-Operating_System
.	O
</s>
<s>
JanusGraph	B-Operating_System
is	O
available	O
under	O
the	O
Apache	B-Application
License	I-Application
2.0	I-Application
.	O
</s>
<s>
JanusGraph	B-Operating_System
supports	O
various	O
storage	O
backends	O
(	O
Apache	B-Application
Cassandra	I-Application
,	O
Apache	B-Language
HBase	I-Language
,	O
Google	B-Application
Cloud	I-Application
Bigtable	I-Application
,	O
Oracle	B-Language
BerkeleyDB	I-Language
,	O
Scylla	B-Language
)	O
.	O
</s>
<s>
Scalability	O
of	O
JanusGraph	B-Operating_System
depends	O
on	O
the	O
underlying	O
technologies	O
,	O
which	O
are	O
used	O
with	O
JanusGraph	B-Operating_System
.	O
</s>
<s>
For	O
example	O
,	O
by	O
using	O
Apache	B-Application
Cassandra	I-Application
as	O
a	O
storage	O
backend	O
scaling	O
to	O
multiple	O
datacenters	O
is	O
provided	O
out	O
of	O
the	O
box	O
.	O
</s>
<s>
JanusGraph	B-Operating_System
supports	O
global	O
graph	O
data	O
analytics	O
,	O
reporting	O
,	O
and	O
ETL	O
through	O
integration	O
with	O
big	O
data	O
platforms	O
(	O
Apache	B-Language
Spark	I-Language
,	O
Apache	B-Language
Giraph	I-Language
,	O
Apache	B-Application
Hadoop	I-Application
)	O
.	O
</s>
<s>
JanusGraph	B-Operating_System
supports	O
geo	O
,	O
numeric	O
range	O
,	O
and	O
full-text	O
search	O
via	O
external	O
index	O
storages	O
(	O
ElasticSearch	B-Application
,	O
Apache	B-Language
Solr	I-Language
,	O
Apache	B-Language
Lucene	I-Language
)	O
.	O
</s>
<s>
JanusGraph	B-Operating_System
has	O
native	O
integration	O
with	O
the	O
Apache	B-Language
TinkerPop	I-Language
graph	O
stack	O
(	O
Gremlin	B-Language
graph	I-Language
query	I-Language
language	I-Language
,	O
,	O
)	O
.	O
</s>
<s>
JanusGraph	B-Operating_System
is	O
the	O
fork	O
of	O
TitanDB	O
graph	B-Application
database	I-Application
which	O
is	O
being	O
developed	O
since	O
2012	O
.	O
</s>
<s>
JanusGraph	B-Operating_System
is	O
available	O
under	O
Apache	O
Software	O
License	O
2.0	O
.	O
</s>
<s>
PRACTICAL	O
GREMLIN	B-Language
An	O
Apache	B-Language
TinkerPop	I-Language
Tutorial	O
.	O
</s>
