<s>
Hypertable	B-General_Concept
was	O
an	O
open-source	B-Application
software	I-Application
project	O
to	O
implement	O
a	O
database	B-Application
management	I-Application
system	I-Application
inspired	O
by	O
publications	O
on	O
the	O
design	O
of	O
Google	B-Application
's	I-Application
Bigtable	B-Application
.	O
</s>
<s>
Hypertable	B-General_Concept
runs	O
on	O
top	O
of	O
a	O
distributed	O
file	O
system	O
such	O
as	O
the	O
Apache	O
HDFS	O
,	O
GlusterFS	B-Application
or	O
the	O
CloudStore	B-Language
Kosmos	O
File	O
System	O
(	O
KFS	O
)	O
.	O
</s>
<s>
It	O
is	O
written	O
almost	O
entirely	O
in	O
C++	B-Language
as	O
the	O
developers	O
believed	O
it	O
had	O
significant	O
performance	O
advantages	O
over	O
Java	B-Language
.	O
</s>
<s>
Hypertable	B-General_Concept
software	O
was	O
originally	O
developed	O
at	O
the	O
company	O
Zvents	O
before	O
2008	O
.	O
</s>
<s>
Doug	O
Judd	O
was	O
a	O
promoter	O
of	O
Hypertable	B-General_Concept
.	O
</s>
<s>
In	O
January	O
2009	O
,	O
Baidu	B-Application
,	O
the	O
Chinese	O
language	O
search	B-Application
engine	I-Application
,	O
became	O
a	O
project	O
sponsor	O
.	O
</s>
