Method for Splitting Region in Distributed Database, Region Node, and System_US20180239780A1.pdf
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THAT
DARI
TANGAN
A
TRA
CUI
MI
DI MO
MTU
US
20180239780A1
(
19
)
United
States
(
12
)
Patent
Application
Publication
(
10
)
Pub
.
No
. :
US
2018
/
0239780
A1
Bi
et
al
.
(
43
)
Pub
.
Date
:
Aug
.
23
,
2018
(
54
)
METHOD
FOR
SPLITTING
REGION
IN
DISTRIBUTED
DATABASE
,
REGION
NODE
,
AND
SYSTEM
(
51
)
(
71
)
Applicant
:
Huawei
Technologies
Co
. ,
Ltd
. ,
Shenzhen
(
CN
)
Publication
Classification
Int
.
Cl
.
G06F
17
/
30
(
2006
.
01
)
G06F
3 /
06
(
2006
.
01
)
U . S .
CI
.
CPC
.
G06F
17
/
30141
(
2013
.
01
) ;
G06F
17
/
30345
(
2013
.
01
) ;
G06F
3 /
061
(
2013
.
01
) ;
G06F
17
/
30946
(
2013
.
01
)
(
52
)
(
72
)
Inventors
:
Jieshan
Bi
,
Shenzhen
(
CN
) ;
Hao
Fang
,
Shenzhen
(
CN
) ;
Chaoqiang
Zhong
,
Shenzhen
(
CN
) ;
Yijun
Guo
,
Shenzhen
(
CN
)
(
21
)
Appl
.
No
. : 15 /
960
,
167
(
22
)
Filed
:
Apr
.
23
,
2018
Related
U . S .
Application
Data
(
63
)
Continuation
of
application
No
.
PCT
/
CN2016
/
080144
,
filed
on
Apr
.
25
,
2016
.
(
57
)
ABSTRACT
In
an
embodiment
, a
first
region
is
set
according
to a
preset
condition
,
the
first
region
is
a
blank
region reserved
for
storing
new
data
of
a
key
-
value
type
.
An
embodiment
method
includes
:
when
the
new
data
of
the
key
-
value
type
is
to
be
stored
in
the
first
region
,
receiving
a
region
split
command
;
updating
,
according
to
the
region
split
command
,
a
state
identifier
of
the
first
region
and
in a
state
table
to
an
identifier
indicating
that
a
read
/
write
service
is
no
longer
provided
,
splitting
the
first
region
into at
least
two
second
regions
,
updating
state
identifiers
of
the
second
regions
in
the
state
table
to
identifiers
indicating
that
a
read
/
write
service
can
be
provided
;
and
recording
,
in
a
metadata
table
,
storage
location
information
of
the
second
regions
.
(
30
)
Foreign
Application
Priority
Data
Nov
.
11
,
2015
(
CN
) . . . . . . . .
.
. . . . . . . 201510767508 . 9
Region
- 1
[
Key
- A ,
Key
- B )
Region
- 2
[
Key
- B ,
Key
- C )
Region
- 1
[
Key
- C ,
Key
- D )
Region
- 1
[
Key
- X ,
Key
- Y )
Patent
Application
Publication
Aug
.
23
,
2018
Sheet
1
of 10
US
2018
/
0239780
A1
Region
- 1
[
Key
- A ,
Key
- B )
Region
- 2
[
Key
- B ,
Key
- C )
Region
- 1
[
Key
- C ,
Key
- D )
Region
- 1
[
Key
- X ,
Key
- Y )
FIG
. 1
of 19
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