<s>
Xeround	B-General_Concept
was	O
a	O
provider	O
of	O
cloud	B-Architecture
database	O
software	O
,	O
launched	O
in	O
2005	O
,	O
and	O
was	O
shut	O
down	O
in	O
May	O
2013	O
.	O
</s>
<s>
Xeround	B-General_Concept
's	O
product	O
was	O
initially	O
used	O
by	O
telecom	O
providers	O
,	O
including	O
T-Mobile	O
;	O
in	O
2009	O
the	O
company	O
added	O
a	O
MySQL	B-Application
front	O
end	O
to	O
its	O
product	O
,	O
making	O
it	O
applicable	O
to	O
a	O
mass	O
market	O
of	O
12	O
million	O
MySQL	B-Application
applications	O
.	O
</s>
<s>
The	O
product	O
allows	O
MySQL	B-Application
users	O
to	O
scale	O
their	O
database	O
and	O
achieve	O
high	O
availability	O
on	O
cloud	B-Architecture
platforms	O
like	O
Amazon	B-General_Concept
EC2	I-General_Concept
.	O
</s>
<s>
According	O
to	O
CNET	O
blogger	O
Dave	O
Rosenberg	O
,	O
Xeround	B-General_Concept
's	O
MySQL	B-Application
support	O
makes	O
it	O
"	O
well	O
positioned	O
to	O
take	O
a	O
leadership	O
position	O
in	O
the	O
database	O
market	O
"	O
.	O
</s>
<s>
On	O
May	O
1	O
,	O
2013	O
,	O
Xeround	B-General_Concept
announced	O
to	O
its	O
paid	O
customers	O
that	O
they	O
were	O
shutting	O
down	O
the	O
cloud	B-Architecture
database	O
service	O
and	O
all	O
data	O
must	O
be	O
migrated	O
before	O
being	O
dropped	O
on	O
May	O
15	O
,	O
2013	O
.	O
</s>
<s>
Xeround	B-General_Concept
provides	O
a	O
cloud	B-Architecture
database	O
service	O
for	O
applications	O
based	O
on	O
the	O
open	B-License
source	I-License
edition	O
of	O
the	O
MySQL	B-Application
database	O
(	O
MySQL	B-Application
is	O
currently	O
owned	O
by	O
Oracle	B-Application
)	O
.	O
</s>
<s>
The	O
product	O
addresses	O
two	O
related	O
problems	O
:	O
it	O
is	O
complex	O
to	O
run	O
databases	O
on	O
the	O
cloud	B-Architecture
,	O
especially	O
if	O
high	O
availability	O
is	O
needed	O
;	O
and	O
databases	O
in	O
general	O
are	O
difficult	O
to	O
scale	O
,	O
as	O
data	O
throughput	O
and	O
volumes	O
grow	O
.	O
</s>
<s>
A	O
cloud	B-Architecture
database	O
service	O
solves	O
both	O
problems	O
,	O
by	O
managing	O
the	O
database	O
on	O
the	O
cloud	B-Architecture
and	O
taking	O
care	O
of	O
scalability	O
and	O
high	O
availability	O
,	O
in	O
a	O
way	O
that	O
is	O
transparent	O
to	O
the	O
application	O
.	O
</s>
<s>
Instead	O
of	O
connecting	O
to	O
a	O
local	O
instance	O
of	O
MySQL	B-Application
,	O
applications	O
can	O
connect	O
to	O
Xeround	B-General_Concept
's	O
cloud	B-Architecture
database	O
,	O
and	O
are	O
then	O
free	O
to	O
scale	O
as	O
needed	O
.	O
</s>
<s>
Because	O
Xeround	B-General_Concept
is	O
an	O
in-memory	O
distributed	O
database	O
,	O
it	O
is	O
currently	O
limited	O
up	O
to	O
50	O
Gigabytes	O
of	O
data	O
.	O
</s>
<s>
Xeround	B-General_Concept
gives	O
a	O
no	O
downtime	O
SLA	O
guarantee	O
.	O
</s>
<s>
Xeround	B-General_Concept
offers	O
its	O
service	O
on	O
several	O
cloud	B-Architecture
platforms	O
-	O
as	O
of	O
September	O
2011	O
,	O
Xeround	B-General_Concept
supported	O
Amazon	B-General_Concept
EC2	I-General_Concept
,	O
RackSpace	O
,	O
and	O
Heroku	B-General_Concept
,	O
and	O
is	O
planning	O
to	O
support	O
additional	O
providers	O
.	O
</s>
<s>
As	O
of	O
March	O
2011	O
,	O
Xeround	B-General_Concept
was	O
the	O
only	O
commercially	O
available	O
product	O
which	O
supports	O
more	O
than	O
one	O
cloud	B-Architecture
provider	O
,	O
allowing	O
users	O
to	O
move	O
their	O
databases	O
freely	O
between	O
cloud	B-Architecture
platforms	O
without	O
being	O
locked	O
in	O
.	O
</s>
<s>
While	O
Xeround	B-General_Concept
uses	O
the	O
open	B-License
source	I-License
version	O
of	O
MySQL	B-Application
,	O
the	O
cloud	B-Architecture
database	O
software	O
itself	O
is	O
not	O
open	B-License
source	I-License
.	O
</s>
<s>
Another	O
distinction	O
is	O
that	O
while	O
Xeround	B-General_Concept
offers	O
MySQL	B-Application
as	O
a	O
front-end	O
,	O
on	O
the	O
back-end	O
it	O
is	O
a	O
NoSQL	B-General_Concept
data	O
storage	O
system	O
distributed	O
on	O
a	O
large	O
number	O
of	O
physical	O
nodes	O
-	O
so	O
it	O
is	O
not	O
subject	O
to	O
the	O
scalability	O
limitations	O
of	O
regular	O
MySQL	B-Application
databases	O
.	O
</s>
<s>
On	O
1	O
May	O
2013	O
Xeround	B-General_Concept
announced	O
via	O
an	O
e-mail	O
to	O
customers	O
that	O
they	O
would	O
no	O
longer	O
be	O
providing	O
their	O
service	O
.	O
</s>
<s>
2005	O
-	O
Xeround	B-General_Concept
is	O
founded	O
by	O
Sharon	O
Barkai	O
and	O
Gilad	O
Zlotkin	O
,	O
raises	O
$6.5	O
million	O
in	O
Series	O
A	O
funding	O
,	O
focuses	O
initially	O
on	O
distributed	O
database	O
software	O
for	O
Telecom	O
providers	O
.	O
</s>
<s>
2006	O
-	O
Xeround	B-General_Concept
ranked	O
as	O
one	O
of	O
Israel	O
's	O
most	O
promising	O
start-ups	O
by	O
Israeli	O
financial	O
newspaper	O
Globes	O
.	O
</s>
<s>
2008	O
-	O
Xeround	B-General_Concept
raises	O
an	O
additional	O
$16	O
million	O
in	O
Series	O
B	O
funding	O
.	O
</s>
<s>
2009	O
-	O
Xeround	B-General_Concept
recruits	O
Razi	O
Sharir	O
as	O
CEO	O
and	O
repositions	O
its	O
product	O
as	O
a	O
cloud	B-Architecture
database	O
service	O
with	O
a	O
MySQL	B-Application
front-end	O
.	O
</s>
<s>
2010	O
-	O
Xeround	B-General_Concept
launches	O
beta	O
version	O
of	O
its	O
database	O
service	O
.	O
</s>
<s>
2011	O
-	O
Xeround	B-General_Concept
announces	O
General	O
Availability	O
of	O
its	O
cloud	B-Architecture
database	O
service	O
,	O
and	O
raises	O
an	O
additional	O
$4	O
million	O
in	O
its	O
final	O
financing	O
round	O
.	O
</s>
<s>
2011	O
-	O
Xeround	B-General_Concept
Raises	O
$9.3	O
M	O
From	O
Benchmark	O
And	O
Others	O
.	O
</s>
<s>
2013	O
-	O
Xeround	B-General_Concept
announced	O
its	O
shutdown	O
.	O
</s>
<s>
Xeround	B-General_Concept
's	O
primary	O
competitors	O
are	O
database	O
services	O
offered	O
by	O
the	O
large	O
cloud	B-Architecture
vendors	I-Architecture
,	O
Amazon	B-Application
Relational	O
Database	O
Service	O
and	O
Database.com	O
by	O
Salesforce	B-Application
.	O
</s>
<s>
Other	O
cloud	B-Architecture
database	O
providers	O
mentioned	O
by	O
industry	O
sources	O
are	O
Microsoft	B-Application
Azure	I-Application
SQL	O
Database	O
,	O
NimbusDB	O
,	O
ClearDB	O
,	O
ParAccel	O
,	O
as	O
well	O
as	O
NoSQL	B-General_Concept
key-value	O
data	O
stores	O
such	O
as	O
Amazon	B-Application
SimpleDB	O
,	O
Google	O
Cloud	B-Architecture
Datastore	O
,	O
Couchbase	B-Operating_System
Server	I-Operating_System
,	O
and	O
Cloudant	B-General_Concept
.	O
</s>
<s>
Database	O
users	O
running	O
their	O
applications	O
on	O
the	O
cloud	B-Architecture
also	O
have	O
the	O
option	O
of	O
installing	O
databases	O
in	O
a	O
"	O
do	O
it	O
yourself	O
"	O
manner	O
instead	O
of	O
paying	O
for	O
a	O
cloud	B-Architecture
database	O
service	O
.	O
</s>
<s>
This	O
involves	O
purchasing	O
a	O
machine	O
instance	O
on	O
a	O
cloud	B-Architecture
computing	I-Architecture
platform	I-Architecture
like	O
Amazon	B-General_Concept
EC2	I-General_Concept
,	O
and	O
manually	O
installing	O
a	O
database	O
.	O
</s>
