<s>
Grafana	B-Protocol
is	O
a	O
multi-platform	B-Operating_System
open	B-License
source	I-License
analytics	B-General_Concept
and	O
interactive	B-General_Concept
visualization	I-General_Concept
web	O
application	O
.	O
</s>
<s>
There	O
is	O
also	O
a	O
licensed	O
Grafana	B-Protocol
Enterprise	O
version	O
with	O
additional	O
capabilities	O
available	O
as	O
a	O
self-hosted	O
installation	O
or	O
an	O
account	O
on	O
the	O
Grafana	B-Protocol
Labs	O
cloud	O
service	O
.	O
</s>
<s>
It	O
is	O
expandable	O
through	O
a	O
plug-in	B-Application
system	I-Application
.	O
</s>
<s>
Grafana	B-Protocol
is	O
divided	O
into	O
a	O
front	B-Architecture
end	I-Architecture
and	I-Architecture
back	I-Architecture
end	I-Architecture
,	O
written	O
in	O
TypeScript	B-Language
and	O
Go	B-Application
,	O
respectively	O
.	O
</s>
<s>
As	O
a	O
visualization	O
tool	O
,	O
Grafana	B-Protocol
is	O
a	O
popular	O
component	O
in	O
monitoring	O
stacks	O
,	O
often	O
used	O
in	O
combination	O
with	O
time	O
series	O
databases	O
such	O
as	O
InfluxDB	B-Language
,	O
Prometheus	B-Language
and	O
Graphite	B-Application
;	O
monitoring	O
platforms	O
such	O
as	O
Sensu	O
,	O
Icinga	B-Protocol
,	O
Checkmk	B-Protocol
,	O
Zabbix	B-Protocol
,	O
Netdata	B-Application
,	O
and	O
PRTG	B-Protocol
;	O
SIEMs	O
such	O
as	O
Elasticsearch	B-Application
and	O
Splunk	B-General_Concept
;	O
and	O
other	O
data	O
sources	O
.	O
</s>
<s>
The	O
Grafana	B-Protocol
user	B-Application
interface	I-Application
was	O
originally	O
based	O
on	O
version	O
3	O
of	O
Kibana	B-Application
.	O
</s>
<s>
Grafana	B-Protocol
was	O
first	O
released	O
in	O
2014	O
by	O
Torkel	O
Ödegaard	O
as	O
an	O
offshoot	O
of	O
a	O
project	O
at	O
Orbitz	O
.	O
</s>
<s>
It	O
targeted	O
time	O
series	O
databases	O
such	O
as	O
InfluxDB	B-Language
,	O
OpenTSDB	O
,	O
and	O
Prometheus	B-Language
,	O
but	O
evolved	O
to	O
support	O
relational	B-Application
databases	I-Application
such	O
as	O
MySQL	B-Application
,	O
PostgreSQL	B-Application
and	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
.	O
</s>
<s>
In	O
2019	O
,	O
Grafana	B-Protocol
Labs	O
secured	O
$24	O
million	O
in	O
Series	O
A	O
funding	O
.	O
</s>
<s>
Grafana	B-Protocol
acquired	O
k6	O
in	O
2021	O
.	O
</s>
<s>
In	O
2021	O
,	O
Grafana	B-Protocol
Labs	O
secured	O
a	O
Series	O
C	O
funding	O
round	O
of	O
$220	O
million	O
.	O
</s>
<s>
Grafana	B-Protocol
is	O
widely	O
used	O
,	O
including	O
in	O
Wikimedia	O
's	O
infrastructure	O
.	O
</s>
<s>
Grafana	B-Protocol
has	O
over	O
1000	O
paying	O
customers	O
,	O
including	O
Bloomberg	O
,	O
JP	O
Morgan	O
Chase	O
,	O
eBay	B-Application
,	O
PayPal	O
,	O
and	O
Sony	O
.	O
</s>
<s>
Previously	O
,	O
Grafana	B-Protocol
was	O
licensed	O
with	O
an	O
Apache	B-Application
License	I-Application
2.0	O
license	O
and	O
used	O
a	O
CLA	O
based	O
on	O
the	O
Harmony	B-Application
Contributor	I-Application
Agreement	I-Application
.	O
</s>
<s>
As	O
of	O
2021	O
April	O
20	O
,	O
Grafana	B-Protocol
is	O
licensed	O
under	O
an	O
AGPLv3	B-Application
license	O
.	O
</s>
<s>
Contributors	O
to	O
Grafana	B-Protocol
need	O
to	O
sign	O
a	O
Contributor	O
License	O
Agreement	O
(	O
CLA	O
)	O
that	O
gives	O
Grafana	B-Protocol
Labs	O
the	O
right	O
to	O
relicense	O
Grafana	B-Protocol
in	O
the	O
future	O
.	O
</s>
