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。这个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
}
这个应用程序通过 springbeans 有一些调度（实现 Runable）。
@Component("dailyTask")
@Scope("prototype")
public class DailyTask implements Runnable {
@Override
public void run() {
// running task
}
}
此应用程序使用 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" />
当此应用程序死锁时，我遇到问题，调度停止运行。
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？