<s>
ArangoDB	B-Operating_System
is	O
a	O
free	B-License
and	I-License
open-source	I-License
native	O
graph	B-Application
database	I-Application
system	O
developed	O
by	O
ArangoDB	B-Operating_System
Inc	O
.	O
ArangoDB	B-Operating_System
is	O
a	O
multi-model	B-Operating_System
database	I-Operating_System
system	O
since	O
it	O
supports	O
three	O
data	O
models	O
(	O
graphs	O
,	O
JSON	B-General_Concept
documents	O
,	O
key/value	B-Data_Structure
)	O
with	O
one	O
database	O
core	O
and	O
a	O
unified	O
query	B-Language
language	I-Language
AQL	O
(	O
ArangoDB	B-Operating_System
Query	B-Language
Language	I-Language
)	O
.	O
</s>
<s>
ArangoDB	B-Operating_System
is	O
a	O
NoSQL	B-General_Concept
database	O
system	O
but	O
AQL	O
is	O
similar	O
in	O
many	O
ways	O
to	O
SQL	B-Language
.	O
</s>
<s>
ArangoDB	B-Operating_System
Inc	O
.	O
was	O
founded	O
in	O
2015	O
by	O
Claudius	O
Weinberger	O
and	O
Frank	O
Celler	O
.	O
</s>
<s>
They	O
originally	O
called	O
the	O
database	O
system	O
“	O
A	O
Versatile	O
Object	O
Container	O
"	O
,	O
or	O
AVOC	O
for	O
short	O
,	O
leading	O
them	O
to	O
call	O
the	O
database	O
AvocadoDB	B-Operating_System
.	O
</s>
<s>
Later	O
,	O
they	O
changed	O
the	O
name	O
to	O
ArangoDB	B-Operating_System
.	O
</s>
<s>
In	O
January	O
2017	O
ArangoDB	B-Operating_System
raised	O
a	O
seed	O
round	O
investment	O
of	O
4.2	O
million	O
Euros	O
led	O
by	O
Target	O
Partners	O
.	O
</s>
<s>
In	O
March	O
2019	O
ArangoDB	B-Operating_System
raised	O
10	O
million	O
dollars	O
in	O
series	O
A	O
funding	O
led	O
by	O
Bow	O
Capital	O
.	O
</s>
<s>
In	O
October	O
2021	O
ArangoDB	B-Operating_System
raised	O
27.8	O
million	O
dollars	O
in	O
series	O
B	O
funding	O
led	O
by	O
Iris	O
Capital	O
.	O
</s>
<s>
A	O
graph	B-Application
traversal	O
algorithm	O
to	O
query	O
for	O
all	O
paths	O
with	O
the	O
shortest	O
value	O
,	O
between	O
two	O
documents.Release	O
Notes3.92022-02-153.9.22022-06-07	O
Collections	O
replicated	O
on	O
all	O
cluster	O
nodes	O
can	O
be	O
combined	O
with	O
graphs	O
sharded	O
by	O
document	O
attributes	O
to	O
enable	O
more	O
local	O
execution	O
of	O
graph	B-Application
queries	O
(	O
"	O
Hybrid	O
SmartGraphs	O
"	O
,	O
"	O
Hybrid	O
Disjoint	O
SmartGraphs	O
"	O
)	O
.	O
</s>
<s>
Language-agnostic	O
tokenization	O
of	O
text	O
(	O
"	O
Segmentation	O
Analyzer	O
"	O
)	O
.Release	O
Notes3.82021-07-293.8.62022-02-23	O
Graph	B-Application
traversal	O
algorithms	O
to	O
enumerate	O
all	O
paths	O
between	O
two	O
vertices	O
(	O
"	O
k	O
Paths	O
"	O
)	O
and	O
to	O
emit	O
paths	O
in	O
order	O
of	O
increasing	O
edge	O
weights	O
(	O
"	O
Weighted	O
Traversals	O
"	O
)	O
.	O
</s>
<s>
Geo-spatial	O
queries	O
can	O
be	O
combined	O
with	O
full-text	B-Application
search	I-Application
.	O
</s>
<s>
Hardware-accelerated	O
on-disk	O
encryption.Release	O
Notes3.72020-09-163.7.172022-02-01	O
Graphs	O
replicated	O
on	O
all	O
cluster	O
nodes	O
to	O
execute	O
graph	B-Application
traversals	O
locally	O
(	O
"	O
SatelliteGraphs	O
"	O
)	O
.	O
</s>
<s>
Document	O
validation	O
using	O
JSON	B-General_Concept
Schema	O
.	O
</s>
<s>
Wildcard	O
and	O
fuzzy	O
search	O
support	O
for	O
full-text	B-Application
search	I-Application
.	O
</s>
<s>
Stop	O
condition	O
support	O
for	O
graph	B-Application
traversals	O
(	O
"	O
Pruning	O
in	O
Traversals	O
"	O
)	O
.	O
</s>
<s>
Graph	B-Application
traversal	O
algorithm	O
to	O
get	O
multiple	O
shortest	O
paths	O
(	O
"	O
k	O
Shortest	O
Paths	O
"	O
)	O
.	O
</s>
<s>
Custom	O
text	O
pre-processors	O
for	O
full-text	B-Application
search	I-Application
(	O
"	O
Configurable	O
Analyzers	O
"	O
)	O
.	O
</s>
<s>
Data	O
masking	O
capabilities	O
for	O
attributes	O
containing	O
sensitive	O
data	O
/	O
PII	O
when	O
creating	O
backups.Release	O
Notes3.42018-12-063.4.112020-09-09	O
Integrated	O
full-text	B-Application
search	I-Application
and	O
information	O
retrieval	O
engine	O
(	O
"	O
ArangoSearch	O
"	O
)	O
.	O
</s>
<s>
Native	O
implementations	O
in	O
C++	B-Language
of	O
all	O
built-in	O
query	O
functions	O
.	O
</s>
<s>
Deployment	O
mode	O
for	O
single	O
servers	O
with	O
automatic	O
failover.Release	O
Notes3.22017-07-203.2.182019-02-02	O
Distributed	O
iterative	O
graph	B-Application
processing	O
with	O
Pregel	O
in	O
single	O
server	O
and	O
cluster	O
.	O
</s>
<s>
LDAP	O
authentication.Release	O
Notes3.12016-11-033.1.292018-06-23	O
Value-based	O
sharding	O
of	O
large	O
graph	B-Application
datasets	O
for	O
better	O
data	O
locality	O
when	O
traversing	O
graphs	O
(	O
"	O
SmartGraphs	O
"	O
)	O
.	O
</s>
<s>
Support	O
for	O
vertex-centric	O
indexes	O
for	O
more	O
efficient	O
graph	B-Application
traversals	O
with	O
filter	O
conditions	O
.	O
</s>
<s>
JSON	B-General_Concept
:	O
ArangoDB	B-Operating_System
uses	O
JSON	B-General_Concept
as	O
a	O
default	O
storage	O
format	O
,	O
but	O
internally	O
it	O
uses	O
ArangoDB	B-Operating_System
VelocyPack	O
–	O
a	O
fast	O
and	O
compact	O
binary	O
format	O
for	O
serialization	O
and	O
storage	O
.	O
</s>
<s>
ArangoDB	B-Operating_System
can	O
natively	O
store	O
a	O
nested	O
JSON	B-General_Concept
object	O
as	O
a	O
data	O
entry	O
inside	O
a	O
collection	O
.	O
</s>
<s>
Therefore	O
,	O
there	O
is	O
no	O
need	O
to	O
disassemble	O
the	O
resulting	O
JSON	B-General_Concept
objects	O
.	O
</s>
<s>
Thus	O
,	O
the	O
stored	O
data	O
would	O
simply	O
inherit	O
the	O
tree	O
structure	O
of	O
the	O
JSON	B-General_Concept
data	O
.	O
</s>
<s>
Predictable	O
performance	O
:	O
ArangoDB	B-Operating_System
is	O
written	O
mainly	O
in	O
C++and	O
manages	O
its	O
own	O
memory	O
to	O
avoid	O
unpredictable	O
performance	O
arising	O
from	O
garbage	B-General_Concept
collection	I-General_Concept
.	O
</s>
<s>
Scaling	B-Architecture
:	O
ArangoDB	B-Operating_System
provides	O
scaling	B-Architecture
through	O
clustering	O
.	O
</s>
<s>
Reliability	O
:	O
ArangoDB	B-Operating_System
provides	O
datacenter-to-datacenter	O
replication	O
.	O
</s>
<s>
Kubernetes	O
:	O
ArangoDB	B-Operating_System
runs	O
on	O
Kubernetes	O
,	O
including	O
cloud-based	O
Kubernetes	O
services	O
Amazon	O
Elastic	O
Kubernetes	O
Service	O
(	O
EKS	O
)	O
,	O
Google	O
Kubernetes	O
Engine	O
(	O
GKE	O
)	O
,	O
and	O
Microsoft	O
Azure	O
Kubernetes	O
Service	O
(	O
AKS	O
)	O
.	O
</s>
<s>
Microservices	O
:	O
ArangoDB	B-Operating_System
provides	O
integration	O
with	O
native	O
JavaScript	B-Language
microservices	O
directly	O
on	O
top	O
of	O
the	O
DBMS	O
using	O
the	O
Foxx	O
framework	O
.	O
</s>
<s>
Multiple	O
query	B-Language
languages	I-Language
:	O
The	O
database	O
has	O
its	O
own	O
query	B-Language
language	I-Language
,	O
AQL	O
(	O
ArangoDB	B-Operating_System
Query	B-Language
Language	I-Language
)	O
,	O
and	O
also	O
provides	O
GraphQL	B-Language
to	O
write	O
flexible	O
native	O
web	O
services	O
directly	O
on	O
top	O
of	O
the	O
DBMS	O
.	O
</s>
<s>
Search	O
:	O
ArangoDB	B-Operating_System
’s	O
search	O
engine	O
combines	O
boolean	O
retrieval	O
capabilities	O
with	O
generalized	O
ranking	O
components	O
allowing	O
for	O
data	O
retrieval	O
based	O
on	O
a	O
precise	O
vector	O
space	O
model	O
.	O
</s>
<s>
Pregel	O
algorithm	O
:	O
is	O
a	O
system	O
for	O
large	O
scale	O
graph	B-Application
processing	O
.	O
</s>
<s>
Pregel	O
is	O
implemented	O
in	O
ArangoDB	B-Operating_System
and	O
can	O
be	O
used	O
with	O
predefined	O
algorithms	O
,	O
e.g.	O
</s>
<s>
Transactions	O
:	O
ArangoDB	B-Operating_System
supports	O
user-definable	O
transactions	O
.	O
</s>
<s>
Transactions	O
in	O
ArangoDB	B-Operating_System
are	O
atomic	O
,	O
consistent	O
,	O
isolated	O
,	O
and	O
durable	O
(	O
ACID	O
)	O
,	O
but	O
only	O
if	O
data	O
is	O
not	O
sharded	O
.	O
</s>
<s>
AQL	O
(	O
ArangoDB	B-Operating_System
Query	B-Language
Language	I-Language
)	O
is	O
the	O
SQL-like	O
query	B-Language
language	I-Language
used	O
in	O
ArangoDB	B-Operating_System
.	O
</s>
<s>
It	O
supports	O
CRUD	B-General_Concept
operations	O
for	O
both	O
documents	O
(	O
nodes	O
)	O
and	O
edges	O
,	O
but	O
it	O
is	O
not	O
a	O
data	B-Language
definition	I-Language
language	I-Language
(	O
DDL	O
)	O
.	O
</s>
<s>
AQL	O
does	O
support	O
geospatial	B-General_Concept
queries	O
.	O
</s>
<s>
AQL	O
is	O
JSON-oriented	O
as	O
illustrated	O
by	O
the	O
following	O
queries	O
:	O
</s>
<s>
The	O
following	O
is	O
a	O
parameterized	O
query	O
for	O
finding	O
the	O
number	O
of	O
descendants	O
of	O
a	O
particular	O
node	O
(	O
@start	O
)	O
in	O
a	O
graph	B-Application
named	O
@graph	O
with	O
@max	O
nodes	O
:	O
</s>
<s>
Open	O
Source	O
:	O
ArangoDB	B-Operating_System
Community	O
Edition	O
is	O
a	O
free	O
graph	B-Application
database	I-Application
with	O
native	O
multi-model	B-Operating_System
database	I-Operating_System
capabilities	O
written	O
mainly	O
in	O
C++	B-Language
and	O
available	O
under	O
an	O
open-source	O
license	O
(	O
)	O
.	O
</s>
<s>
Commercial	O
self-managed	O
:	O
ArangoDB	B-Operating_System
Enterprise	O
is	O
a	O
paid	O
subscription	O
that	O
includes	O
graph-aware	O
sharding	O
(	O
called	O
“	O
SmartGraphs	O
”	O
)	O
and	O
collection	O
replication	O
(	O
called	O
“	O
Satellite	O
Collections	O
”	O
)	O
to	O
reduce	O
query	O
times	O
,	O
and	O
increased	O
security	O
.	O
</s>
<s>
Cloud	O
:	O
ArangoDB	B-Operating_System
is	O
offered	O
as	O
a	O
cloud	O
service	O
called	O
Oasis	O
,	O
providing	O
ArangoDB	B-Operating_System
databases	O
as	O
a	O
Service	O
(	O
DBaaS	O
)	O
.	O
</s>
<s>
ArangoDB	B-Operating_System
Oasis	O
provides	O
the	O
functionality	O
of	O
an	O
ArangoDB	B-Operating_System
cluster	O
deployment	O
while	O
minimizing	O
the	O
amount	O
of	O
administrative	O
effort	O
required	O
.	O
</s>
<s>
ArangoDB	B-Operating_System
Oasis	O
run	O
on	O
multiple	O
,	O
include	O
AWS	O
,	O
Azure	O
,	O
and	O
Google	O
Cloud	O
.	O
</s>
<s>
ArangoDB	B-Operating_System
publishes	O
a	O
on	O
their	O
website	O
.	O
</s>
