Question

我开发了一个监控应用程序，它使用Spring-3.0 Hibernate-3.6.5和SpringHibernateTemplate作为DAO。数据库SQL Server 2008.此应用程序每天都有长时间运行的事务。

@Repository("areaDaoHibernate")
public class AreaDAO implements IArea {
       protected HibernateTemplate template = null;

       @Autowired @Required
       public void setSessionFactory(SessionFactory sessionFactory) {
              template = new HibernateTemplate(sessionFactory);
       }

       // basic dao method
}

此应用程序通过springbeans进行了一些调度（实现Runable）。

@Component("dailyTask")
@Scope("prototype")
public class DailyTask implements Runnable {

@Override
       public void run() {
              // running task
       }
}

此应用使用Apache DBCP进行池化。

   <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
              <property name="dataSource">
                     <ref bean="CustodyDataSource" />
              </property>
…
       </bean>

<bean id = "CustodyDataSource"
      class             = "org.apache.commons.dbcp.BasicDataSource"
      p:driverClassName = "${jdbc1.driverClassName}"
      p:url             = "${jdbc1.url}"
      p:username        = "${jdbc1.username}"
      p:password        = "${jdbc1.password}"
      p:maxIdle         = "${jdbc1.maxIdle}"
      p:maxActive       = "${jdbc1.maxActive}" 
      p:validationQuery = "${jdbc1.validationQuery}" 
      p:testWhileIdle   = "${jdbc1.testWhileIdle}" />
<bean id = "transactionManager"
      class = "org.springframework.orm.hibernate3.HibernateTransactionManager"
      p:sessionFactory-ref = "sessionFactory" />

当这个应用程序死锁时，我有问题，计划停止运行错误显示：

2012-12-27 12:57:20,861  WARN (JDBCExceptionReporter:233) - SQL Error: 1205, SQLState: 40001
2012-12-27 12:57:20,862 ERROR (JDBCExceptionReporter:234) - Transaction (Process ID 55) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
2012-12-27 12:57:20,866 ERROR (DailyTask:238) - org.springframework.dao.CannotAcquireLockException: could not update: [com.btpn.custody.entity.MasterData#00176ed4-b7a2-4da5-a266-ffaab3654050]; SQL [update T_CIF set __UPDATED_DATE=?, STATUS_MD=? where __SID=?]; nested exception is org.hibernate.exception.LockAcquisitionException: could not update: [com.btpn.custody.entity.MasterData#00176ed4-b7a2-4da5-a266-ffaab3654050]
            at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:633)
            at org.springframework.orm.hibernate3.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:793)
            at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:664)
            at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754)
            at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723)
            at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:393)
            at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120)
            at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
            at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
            at $Proxy33.relateWithBranch(Unknown Source)
            at com.btpn.custody.bean.DailyTask.relateMasterDataWithBranch(DailyTask.java:1166)
            at com.btpn.custody.bean.DailyTask.manualInitial(DailyTask.java:213)
            at com.btpn.custody.bean.DailyTask.run(DailyTask.java:197)
            at java.lang.Thread.run(Unknown Source)
Caused by: org.hibernate.exception.LockAcquisitionException: could not update: [com.btpn.custody.entity.MasterData#00176ed4-b7a2-4da5-a266-ffaab3654050]
            at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:107)
            at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
            at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2612)
            at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2494)
            at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2821)
            at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:113)
            at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273)
            at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:265)
            at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:185)
            at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
            at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
            at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
            at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:383)
            at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:133)
            at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:656)
            ... 11 more
Caused by: java.sql.SQLException: Transaction (Process ID 55) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
            at net.sourceforge.jtds.jdbc.SQLDiagnostic.addDiagnostic(SQLDiagnostic.java:368)
            at net.sourceforge.jtds.jdbc.TdsCore.tdsErrorToken(TdsCore.java:2820)
            at net.sourceforge.jtds.jdbc.TdsCore.nextToken(TdsCore.java:2258)
            at net.sourceforge.jtds.jdbc.TdsCore.getMoreResults(TdsCore.java:632)
            at net.sourceforge.jtds.jdbc.JtdsStatement.processResults(JtdsStatement.java:584)
            at net.sourceforge.jtds.jdbc.JtdsStatement.executeSQL(JtdsStatement.java:546)
            at net.sourceforge.jtds.jdbc.JtdsPreparedStatement.executeUpdate(JtdsPreparedStatement.java:504)
            at org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:102)
            at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:46)
            at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2590)
            ... 23 more

所以我的问题：

我应该更改连接池以避免死锁问题吗？
为什么我的调度bean在死锁发生后停止运行？

Answer 1

SQL Server中发生了死锁。这既不是Spring，Hibernate，也不是连接池，也不是SQL Server的错误。问题是您的应用程序正在锁定您的应用程序或其他应用程序也试图锁定的行（以deadlock方式）。

最简单的修复可能是为您的作业设置重试策略（如果失败则只重试整个事务）。您还可以通过查看SQL Server日志来尝试确定哪些应用程序/用户确实参与了死锁。

在Spring Transaction中发生死锁时，Scheduler停止了

1 个答案: