<s>
Apache	B-Application
Apex	I-Application
is	O
a	O
YARN-native	O
platform	O
that	O
unifies	O
stream	B-Application
and	O
batch	B-General_Concept
processing	I-General_Concept
.	O
</s>
<s>
It	O
processes	O
big	O
data-in-motion	O
in	O
a	O
way	O
that	O
is	O
scalable	B-Architecture
,	O
performant	O
,	O
fault-tolerant	B-General_Concept
,	O
stateful	B-Application
,	O
secure	O
,	O
distributed	O
,	O
and	O
easily	O
operable	O
.	O
</s>
<s>
Apache	B-Application
Apex	I-Application
was	O
named	O
a	O
top-level	O
project	O
by	O
The	O
Apache	O
Software	O
Foundation	O
on	O
April	O
25	O
,	O
2016	O
.	O
</s>
<s>
Apache	B-Application
Apex	I-Application
is	O
developed	O
under	O
the	O
Apache	B-Application
License	I-Application
2.0	I-Application
.	O
</s>
<s>
There	O
are	O
two	O
parts	O
of	O
Apache	B-Application
Apex	I-Application
:	O
Apex	O
Core	O
and	O
Apex	O
Malhar	O
.	O
</s>
<s>
Apex	O
Core	O
is	O
the	O
platform	O
or	O
framework	O
for	O
building	O
distributed	O
applications	O
on	O
Hadoop	B-Application
.	O
</s>
<s>
These	O
input	O
and	O
output	O
operators	O
provide	O
templates	O
to	O
sources	O
and	O
sinks	O
such	O
as	O
Alluxio	B-Application
,	O
S3	B-General_Concept
,	O
HDFS	B-Application
,	O
NFS	B-Protocol
,	O
FTP	B-Protocol
,	O
Kafka	B-Language
,	O
ActiveMQ	B-Language
,	O
RabbitMQ	B-Application
,	O
JMS	B-Language
,	O
Cassandra	B-Application
,	O
MongoDB	B-Application
,	O
Redis	B-Operating_System
,	O
HBase	B-Language
,	O
CouchDB	B-Application
,	O
generic	O
JDBC	B-Language
,	O
and	O
other	O
database	O
connectors	O
.	O
</s>
<s>
DataTorrent	O
has	O
developed	O
the	O
platform	O
since	O
2012	O
and	O
then	O
decided	O
to	O
open	O
source	O
the	O
core	O
that	O
became	O
Apache	B-Application
Apex	I-Application
.	O
</s>
<s>
As	O
of	O
September	O
2019	O
,	O
Apache	B-Application
Apex	I-Application
is	O
no	O
longer	O
being	O
developed	O
.	O
</s>
<s>
is	O
a	O
conference	O
about	O
Apache	B-Application
Apex	I-Application
.	O
</s>
<s>
The	O
first	O
conference	O
of	O
Apex	O
Big	B-Application
Data	I-Application
World	O
took	O
place	O
in	O
2017	O
.	O
</s>
