Seata源码—2.seata-samples项目介绍

大纲

1.seata-samples的配置文件和启动类

2.seata-samples业务服务启动时的核心工作

3.seata-samples库存服务的连接池配置

4.Seata对数据库连接池代理配置的分析

5.Dubbo RPC通信过程中传递全局事务XID

6.Seata跟Dubbo整合的Filter(基于SPI机制)

7.seata-samples的AT事务例子原理流程

8.Seata核心配置文件file.conf的内容介绍

1.seata-samples的配置文件和启动类

(1)seata-samples的测试步骤

(2)seata-samples用户服务的配置和启动类

(3)seata-samples库存服务的配置和启动类

(4)seata-samples订单服务的配置和启动类

(5)seata-samples业务服务的配置和启动类

示例仓库：

https://github.com/seata/seata-samples

示例代码的模块ID：seata-samples-dubbo

(1)seata-samples的测试步骤

步骤一：启动DubboAccountServiceStarter

步骤二：启动DubboStorageServiceStarter

步骤三：启动DubboOrderServiceStarter

步骤四：运行DubboBusinessTester

(2)seata-samples用户服务的配置和启动类

dubbo-account-service.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd"><!-- 把jdbc.properties文件里的配置加载进来 --><bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="locations" value="classpath:jdbc.properties"/></bean><!-- 将配置文件里的值注入到库存服务的数据库连接池accountDataSource中 --><bean name="accountDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"><property name="url" value="${jdbc.account.url}"/><property name="username" value="${jdbc.account.username}"/><property name="password" value="${jdbc.account.password}"/><property name="driverClassName" value="${jdbc.account.driver}"/><property name="initialSize" value="0"/><property name="maxActive" value="180"/><property name="minIdle" value="0"/><property name="maxWait" value="60000"/><property name="validationQuery" value="Select 'x' from DUAL"/><property name="testOnBorrow" value="false"/><property name="testOnReturn" value="false"/><property name="testWhileIdle" value="true"/><property name="timeBetweenEvictionRunsMillis" value="60000"/><property name="minEvictableIdleTimeMillis" value="25200000"/><property name="removeAbandoned" value="true"/><property name="removeAbandonedTimeout" value="1800"/><property name="logAbandoned" value="true"/><property name="filters" value="mergeStat"/></bean><!-- 创建数据库连接池代理，通过DataSourceProxy代理accountDataSourceProxy数据库连接池 --><bean id="accountDataSourceProxy" class="io.seata.rm.datasource.DataSourceProxy"><constructor-arg ref="accountDataSource"/></bean><!-- 将数据库连接池代理accountDataSourceProxy注入到JdbcTemplate数据库操作组件中--><bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"><property name="dataSource" ref="accountDataSourceProxy"/></bean><dubbo:application name="dubbo-demo-account-service"><dubbo:parameter key="qos.enable" value="false"/></dubbo:application><dubbo:registry address="zookeeper://localhost:2181" /><dubbo:protocol name="dubbo" port="20881"/><dubbo:service interface="io.seata.samples.dubbo.service.AccountService" ref="service" timeout="10000"/><!-- 将JdbcTemplate数据库操作组件注入到AccountServiceImpl中 --><bean id="service" class="io.seata.samples.dubbo.service.impl.AccountServiceImpl"><property name="jdbcTemplate" ref="jdbcTemplate"/></bean><!-- 全局事务注解扫描组件 --><bean class="io.seata.spring.annotation.GlobalTransactionScanner"><constructor-arg value="dubbo-demo-account-service"/><constructor-arg value="my_test_tx_group"/></bean>
</beans>

启动类：

public class DubboAccountServiceStarter {//Account service is ready. A buyer register an account: U100001 on my e-commerce platformpublic static void main(String[] args) {ClassPathXmlApplicationContext accountContext = new ClassPathXmlApplicationContext(new String[] {"spring/dubbo-account-service.xml"});accountContext.getBean("service");JdbcTemplate accountJdbcTemplate = (JdbcTemplate)accountContext.getBean("jdbcTemplate");accountJdbcTemplate.update("delete from account_tbl where user_id = 'U100001'");accountJdbcTemplate.update("insert into account_tbl(user_id, money) values ('U100001', 999)");new ApplicationKeeper(accountContext).keep();}
}//The type Application keeper.
public class ApplicationKeeper {private static final Logger LOGGER = LoggerFactory.getLogger(ApplicationKeeper.class);private final ReentrantLock LOCK = new ReentrantLock();private final Condition STOP = LOCK.newCondition();//Instantiates a new Application keeper.public ApplicationKeeper(AbstractApplicationContext applicationContext) {addShutdownHook(applicationContext);}private void addShutdownHook(final AbstractApplicationContext applicationContext) {Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {@Overridepublic void run() {try {applicationContext.close();LOGGER.info("ApplicationContext " + applicationContext + " is closed.");} catch (Exception e) {LOGGER.error("Failed to close ApplicationContext", e);}LOCK.lock();try {STOP.signal();} finally {LOCK.unlock();}}}));}public void keep() {LOCK.lock();try {LOGGER.info("Application is keep running ... ");STOP.await();} catch (InterruptedException e) {LOGGER.error("ApplicationKeeper.keep() is interrupted by InterruptedException!", e);} finally {LOCK.unlock();}}
}

(3)seata-samples库存服务的配置和启动类

dubbo-stock-service.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd"><!-- 把jdbc.properties文件里的配置加载进来 --><bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="locations" value="classpath:jdbc.properties"/></bean><!-- 将配置文件里的值注入到库存服务的数据库连接池stockDataSource中 --><bean name="stockDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"><property name="url" value="${jdbc.stock.url}"/><property name="username" value="${jdbc.stock.username}"/><property name="password" value="${jdbc.stock.password}"/><property name="driverClassName" value="${jdbc.stock.driver}"/><property name="initialSize" value="0"/><property name="maxActive" value="180"/><property name="minIdle" value="0"/><property name="maxWait" value="60000"/><property name="validationQuery" value="Select 'x' from DUAL"/><property name="testOnBorrow" value="false"/><property name="testOnReturn" value="false"/><property name="testWhileIdle" value="true"/><property name="timeBetweenEvictionRunsMillis" value="60000"/><property name="minEvictableIdleTimeMillis" value="25200000"/><property name="removeAbandoned" value="true"/><property name="removeAbandonedTimeout" value="1800"/><property name="logAbandoned" value="true"/><property name="filters" value="mergeStat"/></bean><!-- 创建数据库连接池代理，通过DataSourceProxy代理stockDataSource数据库连接池 --><bean id="stockDataSourceProxy" class="io.seata.rm.datasource.DataSourceProxy"><constructor-arg ref="stockDataSource"/></bean><!-- 将数据库连接池代理stockDataSourceProxy注入到JdbcTemplate数据库操作组件中--><bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"><property name="dataSource" ref="stockDataSourceProxy"/></bean><dubbo:application name="dubbo-demo-stock-service"><dubbo:parameter key="qos.enable" value="false"/></dubbo:application><dubbo:registry address="zookeeper://localhost:2181" /><dubbo:protocol name="dubbo" port="20882"/><dubbo:service interface="io.seata.samples.dubbo.service.StockService" ref="service" timeout="10000"/><!-- 将JdbcTemplate数据库操作组件注入到StockServiceImpl中 --><bean id="service" class="io.seata.samples.dubbo.service.impl.StockServiceImpl"><property name="jdbcTemplate" ref="jdbcTemplate"/></bean><!-- 全局事务注解扫描组件 --><bean class="io.seata.spring.annotation.GlobalTransactionScanner"><constructor-arg value="dubbo-demo-stock-service"/><constructor-arg value="my_test_tx_group"/></bean>
</beans>

启动类：

//The type Dubbo stock service starter.
public class DubboStockServiceStarter {//Stock service is ready. A seller add 100 stock to a sku: C00321public static void main(String[] args) {ClassPathXmlApplicationContext stockContext = new ClassPathXmlApplicationContext(new String[] {"spring/dubbo-stock-service.xml"});stockContext.getBean("service");JdbcTemplate stockJdbcTemplate = (JdbcTemplate)stockContext.getBean("jdbcTemplate");stockJdbcTemplate.update("delete from stock_tbl where commodity_code = 'C00321'");stockJdbcTemplate.update("insert into stock_tbl(commodity_code, count) values ('C00321', 100)");new ApplicationKeeper(stockContext).keep();}
}

(4)seata-samples订单服务的配置和启动类

dubbo-order-service.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd"><!-- 把jdbc.properties文件里的配置加载进来 --><bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="locations" value="classpath:jdbc.properties"/></bean><!-- 将配置文件里的值注入到库存服务的数据库连接池orderDataSource中 --><bean name="orderDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"><property name="url" value="${jdbc.order.url}"/><property name="username" value="${jdbc.order.username}"/><property name="password" value="${jdbc.order.password}"/><property name="driverClassName" value="${jdbc.order.driver}"/><property name="initialSize" value="0"/><property name="maxActive" value="180"/><property name="minIdle" value="0"/><property name="maxWait" value="60000"/><property name="validationQuery" value="Select 'x' from DUAL"/><property name="testOnBorrow" value="false"/><property name="testOnReturn" value="false"/><property name="testWhileIdle" value="true"/><property name="timeBetweenEvictionRunsMillis" value="60000"/><property name="minEvictableIdleTimeMillis" value="25200000"/><property name="removeAbandoned" value="true"/><property name="removeAbandonedTimeout" value="1800"/><property name="logAbandoned" value="true"/><property name="filters" value="mergeStat"/></bean><!-- 创建数据库连接池代理，通过DataSourceProxy代理stockDataSource数据库连接池 --><bean id="orderDataSourceProxy" class="io.seata.rm.datasource.DataSourceProxy"><constructor-arg ref="orderDataSource"/></bean><!-- 将数据库连接池代理orderDataSourceProxy注入到JdbcTemplate数据库操作组件中--><bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"><property name="dataSource" ref="orderDataSourceProxy"/></bean><dubbo:application name="dubbo-demo-order-service"><dubbo:parameter key="qos.enable" value="false"/></dubbo:application><dubbo:registry address="zookeeper://localhost:2181" /><dubbo:protocol name="dubbo" port="20883"/><dubbo:service interface="io.seata.samples.dubbo.service.OrderService" ref="service" timeout="10000"/><dubbo:reference id="accountService" check="false" interface="io.seata.samples.dubbo.service.AccountService"/><!-- 将JdbcTemplate数据库操作组件注入到OrderServiceImpl中 --><bean id="service" class="io.seata.samples.dubbo.service.impl.OrderServiceImpl"><property name="jdbcTemplate" ref="jdbcTemplate"/><property name="accountService" ref="accountService"/></bean><!-- 全局事务注解扫描组件 --><bean class="io.seata.spring.annotation.GlobalTransactionScanner"><constructor-arg value="dubbo-demo-order-service"/><constructor-arg value="my_test_tx_group"/></bean>
</beans>

启动类：

//The type Dubbo order service starter.
public class DubboOrderServiceStarter {//The entry point of application.public static void main(String[] args) {//Order service is ready . Waiting for buyers to orderClassPathXmlApplicationContext orderContext = new ClassPathXmlApplicationContext(new String[] {"spring/dubbo-order-service.xml"});orderContext.getBean("service");new ApplicationKeeper(orderContext).keep();}
}

(5)seata-samples业务服务的配置和启动类

dubbo-business.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd"><dubbo:application name="dubbo-demo-app"><dubbo:parameter key="qos.enable" value="false"/><dubbo:parameter key="qos.accept.foreign.ip" value="false"/><dubbo:parameter key="qos.port" value="33333"/></dubbo:application><dubbo:registry address="zookeeper://localhost:2181" /><dubbo:reference id="orderService" check="false" interface="io.seata.samples.dubbo.service.OrderService"/><dubbo:reference id="stockService" check="false" interface="io.seata.samples.dubbo.service.StockService"/><bean id="business" class="io.seata.samples.dubbo.service.impl.BusinessServiceImpl"><property name="orderService" ref="orderService"/><property name="stockService" ref="stockService"/></bean><!-- 全局事务注解扫描组件 --><bean class="io.seata.spring.annotation.GlobalTransactionScanner"><constructor-arg value="dubbo-demo-app"/><constructor-arg value="my_test_tx_group"/></bean>
</beans>

启动类：

//The type Dubbo business tester.
public class DubboBusinessTester {//The entry point of application.public static void main(String[] args) {//The whole e-commerce platform is ready, The buyer(U100001) create an order on the sku(C00321) , the count is 2ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"spring/dubbo-business.xml"});//模拟调用下单接口final BusinessService business = (BusinessService)context.getBean("business");business.purchase("U100001", "C00321", 2);}
}

2.seata-samples业务服务启动时的核心工作

BusinessService业务服务启动时，会创建两个服务接口的动态代理。一个是OrderService订单服务接口的Dubbo动态代理，另一个是StockService库存服务接口的Dubbo动态代理。BusinessService业务服务的下单接口会添加@GlobalTransaction注解，通过@GlobalTransaction注解开启一个分布式事务，Seata的内核组件GlobalTransactionScanner就会扫描到这个注解。

//The type Dubbo business tester.
public class DubboBusinessTester {//The entry point of application.public static void main(String[] args) {//The whole e-commerce platform is ready , The buyer(U100001) create an order on the sku(C00321) , the count is 2ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"spring/dubbo-business.xml"});//模拟调用下单接口final BusinessService business = (BusinessService)context.getBean("business");business.purchase("U100001", "C00321", 2);}
}public class BusinessServiceImpl implements BusinessService {private static final Logger LOGGER = LoggerFactory.getLogger(BusinessService.class);private StockService stockService;private OrderService orderService;private Random random = new Random();@Override@GlobalTransactional(timeoutMills = 300000, name = "dubbo-demo-tx")//分布式事务如果5分钟还没跑完，就是超时public void purchase(String userId, String commodityCode, int orderCount) {LOGGER.info("purchase begin ... xid: " + RootContext.getXID());stockService.deduct(commodityCode, orderCount);orderService.create(userId, commodityCode, orderCount);if (random.nextBoolean()) {throw new RuntimeException("random exception mock!");}}//Sets stock service.public void setStockService(StockService stockService) {this.stockService = stockService;}//Sets order service.public void setOrderService(OrderService orderService) {this.orderService = orderService;}
}

3.seata-samples库存服务的连接池配置

首先会把jdbc.properties文件里的配置加载进来，然后将配置配置的值注入到库存服务的数据库连接池，接着通过Seata的DataSourceProxy对数据库连接池进行代理。

一.启动类

//The type Dubbo stock service starter.
public class DubboStockServiceStarter {//Stock service is ready. A seller add 100 stock to a sku: C00321public static void main(String[] args) {ClassPathXmlApplicationContext stockContext = new ClassPathXmlApplicationContext(new String[] {"spring/dubbo-stock-service.xml"});stockContext.getBean("service");JdbcTemplate stockJdbcTemplate = (JdbcTemplate)stockContext.getBean("jdbcTemplate");stockJdbcTemplate.update("delete from stock_tbl where commodity_code = 'C00321'");stockJdbcTemplate.update("insert into stock_tbl(commodity_code, count) values ('C00321', 100)");new ApplicationKeeper(stockContext).keep();}
}

二.dubbo-stock-service.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd"><!-- 把jdbc.properties文件里的配置加载进来 --><bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="locations" value="classpath:jdbc.properties"/></bean><!-- 将配置文件里的值注入到库存服务的数据库连接池stockDataSource中 --><bean name="stockDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"><property name="url" value="${jdbc.stock.url}"/><property name="username" value="${jdbc.stock.username}"/><property name="password" value="${jdbc.stock.password}"/><property name="driverClassName" value="${jdbc.stock.driver}"/><property name="initialSize" value="0"/><property name="maxActive" value="180"/><property name="minIdle" value="0"/><property name="maxWait" value="60000"/><property name="validationQuery" value="Select 'x' from DUAL"/><property name="testOnBorrow" value="false"/><property name="testOnReturn" value="false"/><property name="testWhileIdle" value="true"/><property name="timeBetweenEvictionRunsMillis" value="60000"/><property name="minEvictableIdleTimeMillis" value="25200000"/><property name="removeAbandoned" value="true"/><property name="removeAbandonedTimeout" value="1800"/><property name="logAbandoned" value="true"/><property name="filters" value="mergeStat"/></bean><!-- 创建数据库连接池代理，通过DataSourceProxy代理stockDataSource数据库连接池 --><bean id="stockDataSourceProxy" class="io.seata.rm.datasource.DataSourceProxy"><constructor-arg ref="stockDataSource"/></bean><!-- 将数据库连接池代理stockDataSourceProxy注入到JdbcTemplate数据库操作组件中--><bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"><property name="dataSource" ref="stockDataSourceProxy"/></bean><dubbo:application name="dubbo-demo-stock-service"><dubbo:parameter key="qos.enable" value="false"/></dubbo:application><dubbo:registry address="zookeeper://localhost:2181" /><dubbo:protocol name="dubbo" port="20882"/><dubbo:service interface="io.seata.samples.dubbo.service.StockService" ref="service" timeout="10000"/><!-- 将JdbcTemplate数据库操作组件注入到StockServiceImpl中 --><bean id="service" class="io.seata.samples.dubbo.service.impl.StockServiceImpl"><property name="jdbcTemplate" ref="jdbcTemplate"/></bean><!-- 全局事务注解扫描组件 --><bean class="io.seata.spring.annotation.GlobalTransactionScanner"><constructor-arg value="dubbo-demo-stock-service"/><constructor-arg value="my_test_tx_group"/></bean>
</beans>

三.jdbc.properties文件文件

jdbc.account.url=jdbc:mysql://localhost:3306/seata
jdbc.account.username=root
jdbc.account.password=123456
jdbc.account.driver=com.mysql.jdbc.Driver
# stock db config
jdbc.stock.url=jdbc:mysql://localhost:3306/seata
jdbc.stock.username=root
jdbc.stock.password=123456
jdbc.stock.driver=com.mysql.jdbc.Driver
# order db config
jdbc.order.url=jdbc:mysql://localhost:3306/seata
jdbc.order.username=root
jdbc.order.password=123456
jdbc.order.driver=com.mysql.jdbc.Driver

4.Seata对数据库连接池代理配置的分析

数据库连接池代理DataSourceProxy，会注入到JdbcTemplate数据库操作组件中。这样库存或者订单服务就可以通过Spring数据库操作组件JdbcTemplate，向Seata数据库连接池代理DataSourceProxy获取一个数据库连接。然后通过数据库连接，把SQL请求发送给MySQL进行处理。

5.Dubbo RPC通信过程中传递全局事务XID

BusinessService对StockService进行RPC调用时，会传递全局事务XID。StockService便可以根据RootContext.getXID()获取到全局事务XID。

public class BusinessServiceImpl implements BusinessService {private static final Logger LOGGER = LoggerFactory.getLogger(BusinessService.class);private StockService stockService;private OrderService orderService;private Random random = new Random();@Override@GlobalTransactional(timeoutMills = 300000, name = "dubbo-demo-tx")//分布式事务如果5分钟还没跑完，就是超时public void purchase(String userId, String commodityCode, int orderCount) {LOGGER.info("purchase begin ... xid: " + RootContext.getXID());stockService.deduct(commodityCode, orderCount);orderService.create(userId, commodityCode, orderCount);if (random.nextBoolean()) {throw new RuntimeException("random exception mock!");}}...
}public class StockServiceImpl implements StockService {private static final Logger LOGGER = LoggerFactory.getLogger(StockService.class);private JdbcTemplate jdbcTemplate;@Overridepublic void deduct(String commodityCode, int count) {LOGGER.info("Stock Service Begin ... xid: " + RootContext.getXID());LOGGER.info("Deducting inventory SQL: update stock_tbl set count = count - {} where commodity_code = {}", count, commodityCode);jdbcTemplate.update("update stock_tbl set count = count - ? where commodity_code = ?", new Object[] {count, commodityCode});LOGGER.info("Stock Service End ... ");}...
}

6.Seata跟Dubbo整合的Filter(基于SPI机制)

Seata与Dubbo整合的Filter过滤器ApacheDubboTransactionPropagationFilter会将向SeataServer注册的全局事务xid，设置到RootContext中。

7.seata-samples的AT事务例子原理流程

8.Seata核心配置文件file.conf的内容介绍

# Seata网络通信相关的配置
transport {# 网络通信的类型是TCPtype = "TCP"# 网络服务端使用NIO模式server = "NIO"# 是否开启心跳heartbeat = true# 是否允许Seata的客户端批量发送请求enableClientBatchSendRequest = true# 使用Netty进行网络通信时的线程配置threadFactory {bossThreadPrefix = "NettyBoss"workerThreadPrefix = "NettyServerNIOWorker"serverExecutorThread-prefix = "NettyServerBizHandler"shareBossWorker = falseclientSelectorThreadPrefix = "NettyClientSelector"clientSelectorThreadSize = 1clientWorkerThreadPrefix = "NettyClientWorkerThread"# 用来监听和建立网络连接的Boss线程的数量bossThreadSize = 1# 默认的Worker线程数量是8workerThreadSize = "default"}shutdown {# 销毁服务端的时候的等待时间是多少秒wait = 3}# 序列化类型是Seataserialization = "seata"# 是否开启压缩compressor = "none"
}# Seata服务端相关的配置
service {# 分布式事务的分组vgroupMapping.my_test_tx_group = "default"# only support when registry.type=file, please don't set multiple addressesdefault.grouplist = "127.0.0.1:8091"# 是否开启降级enableDegrade = false# 是否禁用全局事务disableGlobalTransaction = false
}# Seata客户端相关的配置
client {# 数据源管理组件的配置rm {# 异步提交缓冲区的大小asyncCommitBufferLimit = 10000# 锁相关的配置：重试间隔、重试次数、回滚冲突处理lock {retryInterval = 10retryTimes = 30retryPolicyBranchRollbackOnConflict = true}reportRetryCount = 5tableMetaCheckEnable = falsereportSuccessEnable = false}# 事务管理组件的配置tm {commitRetryCount = 5rollbackRetryCount = 5}# 回滚日志的配置undo {dataValidation = truelogSerialization = "jackson"logTable = "undo_log"}# log日志的配置log {exceptionRate = 100}
}