![]() You don't need any additional dependencies to enable scheduling. Project SetupĪs usual, when it comes to building Spring Boot applications, making a skeleton project is easiest with the help of Spring Initializr. Since Spring Boot offers several options, we're going to cover and implement all of them. For example, newsletter systems or tasks which process information at a set timeframe rely on being scheduled to run at certain time points. 12:00:10,372 - INFO .IntegrationMBeanExporter.Scheduling tasks to be performed at a later date, or repeated in a fixed interval, is a very useful feature. Hence, the task is scheduled twice: once in the XML config and once in Java config inside the launch method. You think they are commented but it is not the case. 12:00:10,372 - INFO .stroy - traceid= - Summary on shutdown: bean 'response' Your XML elements and are not properly commented with <->.: Could not open JPA EntityManager for transaction nested exception is : EntityManagerFactory is closedĪt .JpaTransactionManager.doBegin(JpaTransactionManager.java:448) ~ BeanCreationNotAllowedException: Error creating bean with name 'inMemoryDatabaseShutdownExecutor': Singleton bean creation not allowed while singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!)Īt .(DefaultSingletonBeanRegistry.java:208) ~ finding ScheduledExecutorService bean, if not found then fallbacks to->. For this, it tries to find a registered scheduler bean through BeanFactory.getBean method: Tries to find a configured TaskScheduler bean, if not found then fallbacks to->. 12:00:07,262 - INFO yy.doInTransactionWithoutResult - traceid=d22b696edc90e123 - end This process attempts to set the task scheduler for the registrar. 12:00:01,256 - INFO .ThreadPoolTaskScheduler.shutdown - traceid= - Shutting down ExecutorService 'taskScheduler' 12:00:01,251 - INFO .stroy - traceid= - Closing JPA EntityManagerFactory for persistence unit 'default' 12:00:01,245 - INFO yy.preDestory - traceid= - preDestory 12:00:01,244 - INFO .ThreadPoolTaskExecutor.shutdown - traceid= - Shutting down ExecutorService 'applicationTaskExecutor' ![]() 12:00:01,237 - INFO .EventDrivenConsumer.stop - traceid= - stopped bean '_' ![]() ![]() 12:00:01,237 - INFO .PublishSubscribeChannel.adjustCounterIfNecessary - traceid= - Channel 'application-1.errorChannel' has 0 subscriber(s). There's an autoscaler in place which frequently starts/stops service instances, crashing while stopping is not an option.įrom this post Spring - Scheduled Task - Graceful Shutdown I take that it should be enough to add taskSchedulerCustomizer() as a subscriber to the 'errorChannel' channel It's vital that the DB and RabbitMQ are accessible until the scheduled method ends. The service uses spring-data for the DB and spring-cloud-stream for RabbitMQ. I'm trying to get a spring boot service to end gracefully.It has a method with a annotation. ![]()
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