Question

我有一个例外，没有系统地发生我尝试通过在每次迭代中刷新和清理会话来解决问题，但没有成功。

[quartzScheduler_Worker-7] ERROR jdbc.AbstractBatcher  - Exception executing batch: org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
        at bosmonitor.MyJob$_execute_closure1.doCall(MyJob.groovy:27)
        at bosmonitor.MyJob.execute(MyJob.groovy:25)
        at grails.plugins.quartz.GrailsJobFactory$GrailsJob.execute(GrailsJobFactory.java:102)
        at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
        at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)

班级

class Product {
    int duration = 0
    int timer = 0
    // ...  

    static mapping = {
        version false
    }   
}

通过添加调用作业的服务来更新Poste。

为MyService

def ProductInstance = Product.get(1)

MyJob.schedule(1000L,0)
MyJob.triggerNow([ProductInstance:ProductInstance])

作业

class MyJob {
    def sessionFactory

    static triggers = {}

    def execute(context) {  
        def ProductInstance = context.mergedJobDataMap.get('ProductInstance')

        if (ProductInstance) {          
            // loop every second
            while (ProductInstance.timer < ProductInstance.duration) {  
                def millis = System.currentTimeMillis()     

                Product.withTransaction {               
                    ProductInstance.timer = ++ProductInstance.timer     
                    ProductInstance.merge(flush: true)
                    def hibSession = sessionFactory.getCurrentSession()
                    hibSession.flush()
                    hibSession.clear()
                }
                Thread.sleep(1000 - millis % 1000)
            }
        }       
    }
}

Answer 1

省略withSession的东西并将交易代码放入服务中？！

另外，在保存时启用failOnError有时会导致出现根错误...

grails / hibernate：在Job中获取org.hibernate.StaleStateException

1 个答案: