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Posted to notifications@shardingsphere.apache.org by "liruhui (via GitHub)" <gi...@apache.org> on 2023/03/31 03:15:00 UTC
[GitHub] [shardingsphere] liruhui opened a new issue, #24918: Properties transaction-read-query-strategy not work
liruhui opened a new issue, #24918:
URL: https://github.com/apache/shardingsphere/issues/24918
## 1. Official document
## 2. version 5.3.1
```
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.25</version>
</dependency>
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>shardingsphere-jdbc-core</artifactId>
<version>5.3.1</version>
</dependency>
</dependencies>
```
## 3. javaCode
```iava
public static void main(String[] args) throws SQLException {
//定义数据源
Map<String, DataSource> map = new HashMap<>();
HikariDataSource dataSource = new HikariDataSource();
dataSource.setDriverClassName(Driver.class.getName());
dataSource.setJdbcUrl("jdbc:mysql://192.168.191.164:3306/db_brand?serverTimezone=UTC");
dataSource.setUsername("root");
dataSource.setPassword("rootroot");
HikariDataSource dataSource1 = new HikariDataSource();
dataSource1.setDriverClassName(Driver.class.getName());
dataSource1.setJdbcUrl("jdbc:mysql://192.168.191.164:3307/db_brand?serverTimezone=UTC");
dataSource1.setUsername("root");
dataSource1.setPassword("rootroot");
HikariDataSource dataSource2 = new HikariDataSource();
dataSource2.setDriverClassName(Driver.class.getName());
dataSource2.setJdbcUrl("jdbc:mysql://192.168.191.164:3308/db_brand?serverTimezone=UTC");
dataSource2.setUsername("root");
dataSource2.setPassword("rootroot");
HikariDataSource dataSource3 = new HikariDataSource();
dataSource3.setDriverClassName(Driver.class.getName());
dataSource3.setJdbcUrl("jdbc:mysql://192.168.191.164:3309/db_brand?serverTimezone=UTC");
dataSource3.setUsername("root");
dataSource3.setPassword("rootroot");
map.put("write", dataSource);
map.put("read_0", dataSource1);
map.put("read_1", dataSource2);
map.put("read_2", dataSource3);
StaticReadwriteSplittingStrategyConfiguration staticConfiguration
= new StaticReadwriteSplittingStrategyConfiguration(
"write", Arrays.asList("read_0","read_1","read_2"));
ReadwriteSplittingDataSourceRuleConfiguration configuration =
new ReadwriteSplittingDataSourceRuleConfiguration(
"abc",staticConfiguration,null,"myBalancer");
Map<String, AlgorithmConfiguration> loadBalancers = new HashMap<>();
// thit is here
Properties prop = new Properties();
weightProp.put("transaction-read-query-strategy","FIXED_REPLICA");
loadBalancers.put("myBalancer",new AlgorithmConfiguration("RANDOM",prop));
ReadwriteSplittingRuleConfiguration readwriteSplittingRuleConfiguration =
new ReadwriteSplittingRuleConfiguration(Collections.singleton(configuration),loadBalancers);
Properties properties = new Properties();
properties.put("show-sql",true);
DataSource abc = ShardingSphereDataSourceFactory.createDataSource(map, Collections.singleton(readwriteSplittingRuleConfiguration), properties);
Connection connection = abc.getConnection();
connection.setAutoCommit(false);
for (int i = 0; i < 10; i++) {
ResultSet resultSet = connection.prepareStatement("select * from base_brand").executeQuery();
while (resultSet.next()){
long aLong = resultSet.getLong(1);
String string = resultSet.getString(2);
System.out.println(aLong+"====="+string);
}
System.out.println("===============================================");
}
connection.commit();
connection.close();
}
```
## 4. Test Result
```
set transaction-read-query-strategy=FIXED_REPLICA is In Transaction Randomly choose a fixed from slave nodes ,
but The result of my test is query from the master node every time.
```
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[GitHub] [shardingsphere] bigno-feng commented on issue #24918: Properties transaction-read-query-strategy not work
Posted by "bigno-feng (via GitHub)" <gi...@apache.org>.
bigno-feng commented on issue #24918:
URL: https://github.com/apache/shardingsphere/issues/24918#issuecomment-1547627885
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[GitHub] [shardingsphere] bigno-feng commented on issue #24918: Properties transaction-read-query-strategy not work
Posted by "bigno-feng (via GitHub)" <gi...@apache.org>.
bigno-feng commented on issue #24918:
URL: https://github.com/apache/shardingsphere/issues/24918#issuecomment-1547588712
兄弟，这文档哪里看的
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[GitHub] [shardingsphere] bigno-feng commented on issue #24918: Properties transaction-read-query-strategy not work
Posted by "bigno-feng (via GitHub)" <gi...@apache.org>.
bigno-feng commented on issue #24918:
URL: https://github.com/apache/shardingsphere/issues/24918#issuecomment-1547623564
Upgrading to 5.3.2 or not working
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[GitHub] [shardingsphere] FlyingZC commented on issue #24918: Properties transaction-read-query-strategy not work
Posted by "FlyingZC (via GitHub)" <gi...@apache.org>.
FlyingZC commented on issue #24918:
URL: https://github.com/apache/shardingsphere/issues/24918#issuecomment-1498877072
Hi, `ransaction-read-query-strategy` is not in the `5.3.1` release version.This change is after 5.3.1 and has been removed soon, please upgrade to 5.3.2.In 5.3.1, you can use the `FIXED_REPLICA_RANDOM` instead of `RANDOM`.
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[GitHub] [shardingsphere] TeslaCN closed issue #24918: Properties transaction-read-query-strategy not work
Posted by "TeslaCN (via GitHub)" <gi...@apache.org>.
TeslaCN closed issue #24918: Properties transaction-read-query-strategy not work
URL: https://github.com/apache/shardingsphere/issues/24918
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[GitHub] [shardingsphere] strongduanmu commented on issue #24918: Properties transaction-read-query-strategy not work
Posted by "strongduanmu (via GitHub)" <gi...@apache.org>.
strongduanmu commented on issue #24918:
URL: https://github.com/apache/shardingsphere/issues/24918#issuecomment-1501385118
Hi @liruhui, according to @FlyingZC 's suggestion, can you try to use 5.3.2?
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[GitHub] [shardingsphere] FlyingZC commented on issue #24918: Properties transaction-read-query-strategy not work
Posted by "FlyingZC (via GitHub)" <gi...@apache.org>.
FlyingZC commented on issue #24918:
URL: https://github.com/apache/shardingsphere/issues/24918#issuecomment-1548890955
@bigno-feng Hi,I tested the following code in version 5.3.2, and it can be routed to the main library correctly.
```java
public class RwTest {
public static void main(String[] args) throws SQLException {
//定义数据源
Map<String, DataSource> map = new HashMap<>();
HikariDataSource dataSource = new HikariDataSource();
dataSource.setDriverClassName(Driver.class.getName());
dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/demo_write_ds?serverTimezone=UTC");
dataSource.setUsername("root");
dataSource.setPassword("root");
HikariDataSource dataSource1 = new HikariDataSource();
dataSource1.setDriverClassName(Driver.class.getName());
dataSource1.setJdbcUrl("jdbc:mysql://localhost:3306/demo_read_ds_0?serverTimezone=UTC");
dataSource1.setUsername("root");
dataSource1.setPassword("root");
HikariDataSource dataSource2 = new HikariDataSource();
dataSource2.setDriverClassName(Driver.class.getName());
dataSource2.setJdbcUrl("jdbc:mysql://localhost:3306/demo_read_ds_1?serverTimezone=UTC");
dataSource2.setUsername("root");
dataSource2.setPassword("root");
map.put("write", dataSource);
map.put("read_0", dataSource1);
map.put("read_1", dataSource2);
StaticReadwriteSplittingStrategyConfiguration staticConfiguration
= new StaticReadwriteSplittingStrategyConfiguration(
"write", Arrays.asList("read_0","read_1"));
ReadwriteSplittingDataSourceRuleConfiguration configuration =
new ReadwriteSplittingDataSourceRuleConfiguration(
"abc",staticConfiguration,null,"myBalancer");
Map<String, AlgorithmConfiguration> loadBalancers = new HashMap<>();
Properties prop = new Properties();
prop.put("transaction-read-query-strategy","FIXED_PRIMARY");
loadBalancers.put("myBalancer",new AlgorithmConfiguration("RANDOM",prop));
ReadwriteSplittingRuleConfiguration readwriteSplittingRuleConfiguration =
new ReadwriteSplittingRuleConfiguration(Collections.singleton(configuration),loadBalancers);
Properties properties = new Properties();
properties.put("show-sql",true);
DataSource abc = ShardingSphereDataSourceFactory.createDataSource(map, Collections.singleton(readwriteSplittingRuleConfiguration), properties);
Connection connection = abc.getConnection();
connection.setAutoCommit(false);
for (int i = 0; i < 10; i++) {
ResultSet resultSet = connection.prepareStatement("select * from t_order").executeQuery();
while (resultSet.next()){
String aLong = resultSet.getString(1);
String string = resultSet.getString(2);
System.out.println(aLong+"====="+string + "route: " + resultSet.getString(3));
}
System.out.println("===============================================");
}
connection.commit();
connection.close();
}
}
```
<img width="364" alt="image" src="https://github.com/apache/shardingsphere/assets/19788130/fdd887c8-0311-4d6e-8e44-4a2c23c3103b">
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