spring - JMeter性能测试下出现Activiti死锁

Question

我有问题 事件并发 .我们有一个 wicket Spring 应用 与 嵌入式 Activiti 工作流引擎 .它在没有并发用户的情况下工作正常，但在 期间jmeter 性能测试 事件 造成死锁 在自己的 table 上。例如:ACT_RU_JOB、ACT_RU_EXECUTION、ACT_RU_VARIABLE。我在 Activiti 论坛上找到了有关此问题的主题 ( Activiti Forum )。他们建议使用队列来启动 activiti 进程。这个解决方案并没有解决问题，因为死锁仍然发生。我为您提供了一些配置和堆栈跟踪。所有的答案都对我有用。谢谢您的帮助!

我的事件配置:

<bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
        <property name="databaseType" value="mssql" />
        <property name="dataSource" ref="dataSource" />
        <property name="transactionManager" ref="transactionManagerLugy" />
        <property name="databaseSchemaUpdate" value="true" />
        <property name="jobExecutorActivate" value="true" />
        <property name="deploymentResources" value="classpath*:/diagrams/idm/*.bpmn20.xml" />   
        <property name="history" value="none"/>     
        <property name="jdbcMaxActiveConnections" value="1000"/>
        <property name="jdbcMaxIdleConnections" value="10"/>
        <property name="jdbcMaxWaitTime" value="50000"/>
    </bean> 


    <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
        <property name="processEngineConfiguration" ref="processEngineConfiguration" />
    </bean>

堆栈跟踪:

### Error querying database.  Cause: org.hibernate.exception.LockAcquisitionException: Transaction (Process ID 67) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
### The error may involve org.activiti.engine.impl.persistence.entity.VariableInstanceEntity.selectVariablesByExecutionId-Inline
### The error occurred while setting parameters
### Cause: org.hibernate.exception.LockAcquisitionException: Transaction (Process ID 67) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
    at org.springframework.jms.listener.adapter.MessageListenerAdapter.invokeListenerMethod(MessageListenerAdapter.java:471)
    at org.springframework.jms.listener.adapter.MessageListenerAdapter.onMessage(MessageListenerAdapter.java:355)
    at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:535)
    at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:495)
    at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:467)
    at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:325)
    at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:263)
    at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1058)
    at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1050)
    at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:947)
    at java.lang.Thread.run(Thread.java:662)

Answer 1

我从事件图中删除了所有计时器，死锁消失了。我不知道为什么，但它有效。