c3p0 jdbc死锁问题

Question

我的应用程序基于tomcat + spring + hibernate + mysql。 tomcat版本是7.0.25，spring是2.5，hibernate 3.0，mysql 5.1.53。连接池是c3p0-0.9.1.2.jar，jdbc驱动程序是mysql-connector-java-commercial-5.1.14-bin.jar。我在我的应用程序中遇到了很多死锁，特别是当表变大时。在这里我通过jprofiler转储一个死锁的堆栈：

主题-1：

    com.mysql.jdbc.ConnectionImpl.getCancelTimer()
    com.mysql.jdbc.PreparedStatement.executeInternal(int, com.mysql.jdbc.Buffer, boolean, boolean, com.mysql.jdbc.Field[ ], boolean) (line: 2146)
    com.mysql.jdbc.PreparedStatement.executeUpdate(byte[ ][ ], java.io.InputStream[ ], boolean[ ], int[ ], boolean[ ], boolean) (line: 2407)
    com.mysql.jdbc.PreparedStatement.executeUpdate(boolean, boolean)
    com.mysql.jdbc.PreparedStatement.executeUpdate()
    com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate() (line: 105)
    org.hibernate.engine.query.NativeSQLQueryPlan.performExecuteUpdate(org.hibernate.engine.QueryParameters, org.hibernate.engine.SessionImplementor) (line: 189)
    org.hibernate.impl.SessionImpl.executeNativeUpdate(org.hibernate.engine.query.sql.NativeSQLQuerySpecification, org.hibernate.engine.QueryParameters) (line: 1190)
    org.hibernate.impl.SQLQueryImpl.executeUpdate() (line: 357)
    com.aaabbbccc.intune.dao.DaoHelper.executeUpdateFromSQLQuery(java.lang.String)
    com.aaabbbccc.intune.dao.EventDao.deleteEventCountByUser(int) (line: 138)
    com.aaabbbccc.intune.statistics.EventStatisticsService.collectEventCountInfoByUser(short, int, int) (line: 134)
    com.aaabbbccc.intune.statistics.EventStatisticsService.collectEventCountInfo() (line: 78)
    com.aaabbbccc.intune.statistics.EventStatisticsService$$FastClassByCGLIB$$23967f0c.invoke(int, java.lang.Object, java.lang.Object[ ])
    net.sf.cglib.proxy.MethodProxy.invoke(java.lang.Object, java.lang.Object[ ]) (line: 149)
    org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint()
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed() (line: 149)
    org.springframework.transaction.interceptor.TransactionInterceptor.invoke(org.aopalliance.intercept.MethodInvocation) (line: 106)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed()
    org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(java.lang.Object, java.lang.reflect.Method, java.lang.Object[ ], net.sf.cglib.proxy.MethodProxy) (line: 635)
    com.aaabbbccc.intune.statistics.EventStatisticsService$$EnhancerByCGLIB$$c70cea1b.collectEventCountInfo()
    sun.reflect.NativeMethodAccessorImpl.invoke0(java.lang.reflect.Method, java.lang.Object, java.lang.Object[ ])
    sun.reflect.NativeMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[ ])
    sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[ ])
    java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[ ])
    org.springframework.util.MethodInvoker.invoke()
    org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(org.quartz.JobExecutionContext) (line: 260)
    org.springframework.scheduling.quartz.QuartzJobBean.execute(org.quartz.JobExecutionContext) (line: 86)
    org.quartz.core.JobRunShell.run() (line: 216)
    org.quartz.simpl.SimpleThreadPool$WorkerThread.run() (line: 549)

线程2：

    com.mysql.jdbc.ConnectionImpl.rollback() (line: 4711)
    com.mysql.jdbc.ConnectionImpl.realClose(boolean, boolean, boolean, java.lang.Throwable) (line: 4345)
    com.mysql.jdbc.ConnectionImpl.close() (line: 1564)
    com.mchange.v2.c3p0.impl.NewPooledConnection.close(java.lang.Throwable) (line: 549)
    com.mchange.v2.c3p0.impl.NewPooledConnection.close()
    com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.destroyResource(java.lang.Object) (line: 470)
    com.mchange.v2.resourcepool.BasicResourcePool$1DestroyResourceTask.run() (line: 964)
    com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run() (line: 547)

tomcat server.xml中的C3P0配置是：

  <Resource type="com.mchange.v2.c3p0.ComboPooledDataSource" 
    jdbcUrl="jdbc:mysql://localhost/itms?max_sp_recursion_depth=10" 
    factory="org.apache.naming.factory.BeanFactory" 
description="DB Connection" 
    name="jdbc/pooledDS" 
    driverClass="com.mysql.jdbc.Driver" 
    debugUnreturnedConnectionStackTraces="true" 
    auth="Container" 
    acquireIncrement="1" 
    acquireRetryAttempts="10" 
    idleConnectionTestPeriod="30" 
    initialPoolSize="15" 
    maxIdleTime="900" 
    maxPoolSize="50" 
    maxStatements="0" 
    minPoolSize="15" 
    numHelperThreads="10" 
    unreturnedConnectionTimeout="900" 
    user="root"
    password="admin" />

我的配置错了吗？请帮忙

另一个僵局：

主题-3：

    com.mysql.jdbc.ConnectionImpl.execSQL(com.mysql.jdbc.StatementImpl, java.lang.String, int, com.mysql.jdbc.Buffer, int, int, boolean, java.lang.String, com.mysql.jdbc.Field[ ], boolean) (line: 2585)
    com.mysql.jdbc.ConnectionImpl.setTransactionIsolation(int) (line: 5318)
    com.mchange.v2.c3p0.impl.NewProxyConnection.setTransactionIsolation(int) (line: 701)
    sun.reflect.GeneratedMethodAccessor223.invoke(java.lang.Object, java.lang.Object[ ])
    sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[ ])
    java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[ ])
    org.hibernate.jdbc.BorrowedConnectionProxy.invoke(java.lang.Object, java.lang.reflect.Method, java.lang.Object[ ]) (line: 74)
    $Proxy21.setTransactionIsolation(int)
    org.springframework.jdbc.datasource.DataSourceUtils.resetConnectionAfterTransaction(java.sql.Connection, java.lang.Integer) (line: 196)
    org.springframework.orm.hibernate3.HibernateTransactionManager.doCleanupAfterCompletion(java.lang.Object) (line: 628)
    org.springframework.transaction.support.AbstractPlatformTransactionManager.cleanupAfterCompletion(org.springframework.transaction.support.DefaultTransactionStatus) (line: 989)
    org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(org.springframework.transaction.support.DefaultTransactionStatus) (line: 782)
    org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(org.springframework.transaction.TransactionStatus) (line: 701)
    org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(org.springframework.transaction.interceptor.TransactionAspectSupport$TransactionInfo) (line: 321)
    org.springframework.transaction.interceptor.TransactionInterceptor.invoke(org.aopalliance.intercept.MethodInvocation) (line: 116)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed()
    org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(java.lang.Object, java.lang.reflect.Method, java.lang.Object[ ], net.sf.cglib.proxy.MethodProxy) (line: 635)
    com.aaabbbccc.intune.web.peer.http.TR069PeerService$$EnhancerByCGLIB$$2138ec73.authenticateDevice(java.lang.String, java.util.ArrayList)
    com.aaabbbccc.intune.web.peer.http.TR069AsyncServlet.processInform(javax.xml.soap.SOAPMessage, com.aaabbbccc.intune.tr069.models.structs.HeaderStruct, java.lang.String) (line: 1527)
    com.aaabbbccc.intune.web.peer.http.TR069AsyncServlet.processingSoapBody(javax.xml.soap.SOAPBody, javax.xml.soap.SOAPMessage, com.aaabbbccc.intune.tr069.models.structs.HeaderStruct, java.lang.Integer, java.lang.String, java.lang.String) (line: 523)
    com.aaabbbccc.intune.web.peer.http.TR069AsyncServlet.processSOAPMessage(javax.xml.soap.SOAPMessage, java.lang.Integer, java.lang.String, java.lang.String) (line: 387)
    com.aaabbbccc.intune.web.peer.http.TR069AsyncServlet.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) (line: 194)
    javax.servlet.http.HttpServlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (line: 722)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (line: 305)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (line: 210)
    org.apache.catalina.core.ApplicationDispatcher.invoke(javax.servlet.ServletRequest, javax.servlet.ServletResponse, org.apache.catalina.core.ApplicationDispatcher$State) (line: 684)
    org.apache.catalina.core.ApplicationDispatcher.doInclude(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.DispatcherType) (line: 593)
    org.apache.catalina.core.ApplicationDispatcher.include(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (line: 530)
    org.apache.catalina.core.AsyncContextImpl$1.run() (line: 174)
    org.apache.catalina.core.AsyncContextImpl.doInternalDispatch() (line: 316)
    org.apache.catalina.core.StandardWrapperValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 202)
    org.apache.catalina.core.StandardContextValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 169)
    org.apache.catalina.core.StandardHostValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 168)
    org.apache.catalina.valves.ErrorReportValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 98)
    org.apache.catalina.core.StandardEngineValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 118)
    org.apache.catalina.connector.CoyoteAdapter.asyncDispatch(org.apache.coyote.Request, org.apache.coyote.Response, org.apache.tomcat.util.net.SocketStatus) (line: 298)
    org.apache.coyote.http11.AbstractHttp11Processor.asyncDispatch(org.apache.tomcat.util.net.SocketStatus) (line: 1515)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(org.apache.tomcat.util.net.SocketWrapper, org.apache.tomcat.util.net.SocketStatus) (line: 563)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run() (line: 1600)
    java.util.concurrent.ThreadPoolExecutor$Worker.runTask(java.lang.Runnable)
    java.util.concurrent.ThreadPoolExecutor$Worker.run()
    java.lang.Thread.run()

线程4：

    com.mysql.jdbc.ConnectionImpl.getCancelTimer()
    com.mysql.jdbc.PreparedStatement.executeInternal(int, com.mysql.jdbc.Buffer, boolean, boolean, com.mysql.jdbc.Field[ ], boolean) (line: 2119)
    com.mysql.jdbc.PreparedStatement.executeQuery() (line: 2273)
    com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery() (line: 76)
    org.hibernate.jdbc.AbstractBatcher.getResultSet(java.sql.PreparedStatement) (line: 208)
    org.hibernate.loader.Loader.getResultSet(java.sql.PreparedStatement, boolean, boolean, org.hibernate.engine.RowSelection, org.hibernate.engine.SessionImplementor) (line: 1808)
    org.hibernate.loader.Loader.doQuery(org.hibernate.engine.SessionImplementor, org.hibernate.engine.QueryParameters, boolean) (line: 697)
    org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(org.hibernate.engine.SessionImplementor, org.hibernate.engine.QueryParameters, boolean) (line: 259)
    org.hibernate.loader.Loader.loadEntity(org.hibernate.engine.SessionImplementor, java.lang.Object, org.hibernate.type.Type, java.lang.Object, java.lang.String, java.io.Serializable, org.hibernate.persister.entity.EntityPersister) (line: 1881)
    org.hibernate.loader.entity.AbstractEntityLoader.load(org.hibernate.engine.SessionImplementor, java.lang.Object, java.lang.Object, java.io.Serializable) (line: 71)
    org.hibernate.loader.entity.AbstractEntityLoader.load(java.io.Serializable, java.lang.Object, org.hibernate.engine.SessionImplementor)
    org.hibernate.persister.entity.AbstractEntityPersister.load(java.io.Serializable, java.lang.Object, org.hibernate.LockMode, org.hibernate.engine.SessionImplementor)
    org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(org.hibernate.event.LoadEvent, org.hibernate.persister.entity.EntityPersister, org.hibernate.engine.EntityKey, org.hibernate.event.LoadEventListener$LoadType) (line: 434)
    org.hibernate.event.def.DefaultLoadEventListener.doLoad(org.hibernate.event.LoadEvent, org.hibernate.persister.entity.EntityPersister, org.hibernate.engine.EntityKey, org.hibernate.event.LoadEventListener$LoadType)
    org.hibernate.event.def.DefaultLoadEventListener.load(org.hibernate.event.LoadEvent, org.hibernate.persister.entity.EntityPersister, org.hibernate.engine.EntityKey, org.hibernate.event.LoadEventListener$LoadType) (line: 165)
    org.hibernate.event.def.DefaultLoadEventListener.onLoad(org.hibernate.event.LoadEvent, org.hibernate.event.LoadEventListener$LoadType) (line: 121)
    org.hibernate.impl.SessionImpl.fireLoad(org.hibernate.event.LoadEvent, org.hibernate.event.LoadEventListener$LoadType) (line: 905)
    org.hibernate.impl.SessionImpl.immediateLoad(java.lang.String, java.io.Serializable) (line: 863)
    org.hibernate.proxy.AbstractLazyInitializer.initialize() (line: 95)
    org.hibernate.proxy.AbstractLazyInitializer.getImplementation() (line: 140)
    org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(java.lang.Object, java.lang.reflect.Method, java.lang.reflect.Method, java.lang.Object[ ]) (line: 190)
    com.aaabbbccc.intune.data.ProviderMaster_$$_javassist_23.getAutoApproveMode()
    com.aaabbbccc.intune.web.peer.http.TR069PeerService.authenticateDevice(java.lang.String, java.util.ArrayList) (line: 882)
    com.aaabbbccc.intune.web.peer.http.TR069PeerService$$FastClassByCGLIB$$455c8769.invoke(int, java.lang.Object, java.lang.Object[ ])
    net.sf.cglib.proxy.MethodProxy.invoke(java.lang.Object, java.lang.Object[ ]) (line: 149)
    org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint()
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed() (line: 149)
    org.springframework.transaction.interceptor.TransactionInterceptor.invoke(org.aopalliance.intercept.MethodInvocation) (line: 106)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed()
    org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(java.lang.Object, java.lang.reflect.Method, java.lang.Object[ ], net.sf.cglib.proxy.MethodProxy) (line: 635)
    com.aaabbbccc.intune.web.peer.http.TR069PeerService$$EnhancerByCGLIB$$2138ec73.authenticateDevice(java.lang.String, java.util.ArrayList)
    com.aaabbbccc.intune.web.peer.http.TR069AsyncServlet.processInform(javax.xml.soap.SOAPMessage, com.aaabbbccc.intune.tr069.models.structs.HeaderStruct, java.lang.String) (line: 1527)
    com.aaabbbccc.intune.web.peer.http.TR069AsyncServlet.processingSoapBody(javax.xml.soap.SOAPBody, javax.xml.soap.SOAPMessage, com.aaabbbccc.intune.tr069.models.structs.HeaderStruct, java.lang.Integer, java.lang.String, java.lang.String) (line: 523)
    com.aaabbbccc.intune.web.peer.http.TR069AsyncServlet.processSOAPMessage(javax.xml.soap.SOAPMessage, java.lang.Integer, java.lang.String, java.lang.String) (line: 387)
    com.aaabbbccc.intune.web.peer.http.TR069AsyncServlet.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) (line: 194)
    javax.servlet.http.HttpServlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (line: 722)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (line: 305)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (line: 210)
    org.apache.catalina.core.ApplicationDispatcher.invoke(javax.servlet.ServletRequest, javax.servlet.ServletResponse, org.apache.catalina.core.ApplicationDispatcher$State) (line: 684)
    org.apache.catalina.core.ApplicationDispatcher.doInclude(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.DispatcherType) (line: 593)
    org.apache.catalina.core.ApplicationDispatcher.include(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (line: 530)
    org.apache.catalina.core.AsyncContextImpl$1.run() (line: 174)
    org.apache.catalina.core.AsyncContextImpl.doInternalDispatch() (line: 316)
    org.apache.catalina.core.StandardWrapperValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 202)
    org.apache.catalina.core.StandardContextValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 169)
    org.apache.catalina.core.StandardHostValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 168)
    org.apache.catalina.valves.ErrorReportValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 98)
    org.apache.catalina.core.StandardEngineValve.invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response) (line: 118)
    org.apache.catalina.connector.CoyoteAdapter.asyncDispatch(org.apache.coyote.Request, org.apache.coyote.Response, org.apache.tomcat.util.net.SocketStatus) (line: 298)
    org.apache.coyote.http11.AbstractHttp11Processor.asyncDispatch(org.apache.tomcat.util.net.SocketStatus) (line: 1515)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(org.apache.tomcat.util.net.SocketWrapper, org.apache.tomcat.util.net.SocketStatus) (line: 563)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run() (line: 1600)
    java.util.concurrent.ThreadPoolExecutor$Worker.runTask(java.lang.Runnable)
    java.util.concurrent.ThreadPoolExecutor$Worker.run()
    java.lang.Thread.run()