<s>
Fluentd	B-Application
is	O
a	O
cross-platform	B-Operating_System
open-source	B-Application
data	O
collection	O
software	O
project	O
originally	O
developed	O
at	O
Treasure	O
Data	O
.	O
</s>
<s>
It	O
is	O
written	O
primarily	O
in	O
the	O
Ruby	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
Fluentd	B-Application
was	O
positioned	O
for	O
"	O
big	B-Application
data	I-Application
"	O
,	O
semi	O
-	O
or	O
un-structured	O
data	O
sets	O
.	O
</s>
<s>
It	O
analyzes	O
event	O
logs	O
,	O
application	B-Application
logs	O
,	O
and	O
clickstreams	O
.	O
</s>
<s>
According	O
to	O
Suonsyrjä	O
and	O
Mikkonen	O
,	O
the	O
"	O
core	O
idea	O
of	O
Fluentd	B-Application
is	O
to	O
be	O
the	O
unifying	O
layer	O
between	O
different	O
types	O
of	O
log	O
inputs	O
and	O
outputs	O
.	O
</s>
<s>
"	O
,	O
Fluentd	B-Application
is	O
available	O
on	O
Linux	B-Application
,	O
macOS	B-Application
,	O
and	O
Windows	O
.	O
</s>
<s>
Fluentd	B-Application
was	O
created	O
by	O
Sadayuki	B-Application
Furuhashi	I-Application
as	O
a	O
project	O
of	O
the	O
Mountain	O
View-based	O
firm	O
Treasure	O
Data	O
.	O
</s>
<s>
Written	O
primarily	O
in	O
Ruby	B-Language
,	O
its	O
source	O
code	O
was	O
released	O
as	O
open-source	B-Application
software	I-Application
in	O
October	O
2011	O
.	O
</s>
<s>
Fluentd	B-Application
was	O
one	O
of	O
the	O
data	O
collection	O
tools	O
recommended	O
by	O
Amazon	B-Application
Web	I-Application
Services	I-Application
in	O
2013	O
,	O
when	O
it	O
was	O
said	O
to	O
be	O
similar	O
to	O
Apache	B-Language
Flume	I-Language
or	O
Scribe	B-Application
.	O
</s>
<s>
Google	B-General_Concept
Cloud	I-General_Concept
Platform	I-General_Concept
's	O
BigQuery	B-Application
recommends	O
Fluentd	B-Application
as	O
the	O
default	O
real-time	O
data-ingestion	O
tool	O
,	O
and	O
uses	O
Google	O
's	O
customized	O
version	O
of	O
Fluentd	B-Application
,	O
called	O
google-fluentd	O
,	O
as	O
a	O
default	O
logging	O
agent	O
.	O
</s>
<s>
Fluent	O
Bit	O
is	O
a	O
log	O
processor	O
and	O
log	O
forwarder	O
which	O
is	O
being	O
developed	O
as	O
a	O
CNCF	O
sub-project	O
under	O
the	O
umbrella	O
of	O
Fluentd	B-Application
project	O
.	O
</s>
<s>
Fluentd	B-Application
is	O
written	O
in	O
C	B-Language
and	O
Ruby	B-Language
and	O
built	O
as	O
a	O
Ruby	B-Language
gem	O
so	O
it	O
consumes	O
some	O
amount	O
of	O
memory	O
resources	O
.	O
</s>
<s>
On	O
the	O
other	O
hand	O
,	O
since	O
Fluent	O
Bit	O
is	O
written	O
only	O
in	O
C	B-Language
and	O
has	O
no	O
dependencies	O
,	O
the	O
consumed	O
memory	O
usage	O
much	O
decreased	O
compared	O
to	O
Fluentd	B-Application
which	O
makes	O
it	O
easy	O
to	O
run	O
on	O
the	O
embedded	O
Linux	B-Application
and	O
container	O
environment	O
.	O
</s>
