<s>
Apache	B-Language
Helix	I-Language
is	O
an	O
open-source	B-License
cluster	B-Operating_System
management	I-Operating_System
framework	O
developed	O
by	O
the	O
Apache	O
Software	O
Foundation	O
.	O
</s>
<s>
Helix	O
is	O
one	O
of	O
the	O
several	O
notable	O
open	B-License
source	I-License
projects	O
developed	O
by	O
LinkedIn	B-Application
.	O
</s>
<s>
It	O
is	O
a	O
stable	O
cluster	B-Operating_System
management	I-Operating_System
framework	O
used	O
for	O
the	O
automatic	O
management	O
of	O
partitioned	O
,	O
replicated	O
and	O
distributed	O
resources	O
hosted	O
on	O
a	O
cluster	O
of	O
systems	O
.	O
</s>
<s>
Helix	O
is	O
one	O
of	O
several	O
notable	O
cluster	B-Operating_System
management	I-Operating_System
framework	O
originally	O
developed	O
by	O
LinkedIn	B-Application
apart	O
from	O
Apache	B-Application
Samza	I-Application
,	O
Apache	B-Language
Kafka	I-Language
and	O
Voldemort	B-Application
.	O
</s>
<s>
The	O
origins	O
of	O
Helix	O
lie	O
in	O
a	O
distributed	O
NoSQL	B-General_Concept
called	O
Espresso	O
.	O
</s>
