内存数据库H2的Clustering模式数据操作测试

 

Init

server1和server2是两台单独的server，数据文件分开，分别启动：

server1：

s1_start.bat:

@java -cp "h2.jar;%H2DRIVERS%;%CLASSPATH%" org.h2.tools.Server -tcp -tcpPort 9101 -baseDir server1

@if errorlevel 1 pause

server2:

s2_start.bat:

@java -cp "h2.jar;%H2DRIVERS%;%CLASSPATH%" org.h2.tools.Server -tcp -tcpPort 9102 -baseDir server2

@if errorlevel 1 pause

create cluster:

cluster.bat:

@java -cp "h2.jar;%H2DRIVERS%;%CLASSPATH%" org.h2.tools.CreateCluster -urlSource jdbc:h2:tcp://localhost:9101/./test -urlTarget jdbc:h2:tcp://localhost:9102/./test  -user sa -serverlist localhost:9101,localhost:9102

@if errorlevel 1 pause

-urlSource和-urlTarget指明了哪个是主DB（所有select操作都从这个DB走），其它insert, delete, update操作分别向两个DB进行操作

client:

jdbc url: jdbc:h2:tcp://localhost:9101,localhost:9102/./test

 

Init data:

CREATE TABLE TEST(ID INT, NAME VARCHAR);

 

Test_Insert:

1. 初始数据：

Server1:

ID	NAME
1	1
3	3
5	5

Server2:

ID	NAME
1	1
2	2
5	5

 

Server1，Server2正常启动，Client以Server1为基础

insert into test values (2, '2');

insert into test values (3, '3');

insert into test values (4, '4');

insert into test values (5, '5');

insert into test values (6, '6');

 

结果：

insert into test values (2, '2');

Unique index or primary key violation: PRIMARY_KEY_2  ON PUBLIC.TEST(ID) [23001-79] 23001/23001 (Help)

 

insert into test values (3, '3');

Unique index or primary key violation: PRIMARY_KEY_2  ON PUBLIC.TEST(ID) [23001-79] 23001/23001 (Help)

 

insert into test values (4, '4');

Update count: 1

(0 ms)

 

insert into test values (5, '5');

Unique index or primary key violation: PRIMARY_KEY_2  ON PUBLIC.TEST(ID) [23001-79] 23001/23001 (Help)

 

insert into test values (6, '6');

Update count: 1

(16 ms)

 

Server1:

ID	NAME
1	1
2	2
3	3
4	4
5	5
6	6

Server2:

ID	NAME
1	1
2	2
4	4
5	5
6	6

说明先向Server1 insert，如果server1 insert成功后，再向Server2操作

 

delete from test where id = 6;

 

1. 停掉Server1，

insert into test values (6, '6');

select * from test;

 

Client/Server2:

ID	NAME
1	1
2	2
3	3
4	4
5	5
6	6

Server1的记录还是5条

 

1. 重启Server1，客户端不重新连接（此时，select操作的数据是以server2为准）

执行：

insert into test values (6, '6');

insert into test values (7, '7');

insert into test values (8, '8');

 

执行结果

insert into test values (6, '6');

Unique index or primary key violation: PRIMARY_KEY_2  ON PUBLIC.TEST(ID) [23001-79] 23001/23001 (Help)

 

insert into test values (7, '7');

Update count: 1

(0 ms)

 

commit;

 

insert into test values (8, '8');

commit;

 

Server1：

ID	NAME
1	1
2	2
3	3
4	4
5	5

 

Client/Server2:

ID	NAME
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8

说明没重连，对Server2的操作没有同步到Server1

 

1. 重启Server2，客户端不重新连接（读以Server1）为主

执行：

insert into test values (6, '6');

insert into test values (7, '7');

insert into test values (8, '8');

insert into test values (9, '9');

commit;

 

结果：

insert into test values (6, '6');

Update count: 1

(0 ms)

 

insert into test values (7, '7');

Update count: 1

(0 ms)

 

insert into test values (8, '8');

Update count: 1

(0 ms)

 

insert into test values (9, '9');

Update count: 1

(0 ms)

 

Client (Server1):

ID	NAME
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9

 

Server2:

ID	NAME
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8

 

说明没重连，对Server1的操作没有同步到Server2