[英]Do not run Spring @Scheduled task on certain machine
Our web app has few scheduled tasks and we like this feature of Spring so much, many have started relying on it. 我们的网络应用程序几乎没有计划任务,我们非常喜欢Spring的这个功能,许多人已经开始依赖它了。 We have a 'pilot' machine which shares the same configuration/db as prod machines.
我们有一台“试用”机器,与prod机器共享相同的配置/数据库。 Since this machine points to the same db as prod machines, when it runs a scheduled task - it may affect prod data.
由于此机器指向与prod机器相同的db,因此当它运行计划任务时 - 它可能会影响prod数据。 Is there a way to not run Spring Scheduled task on this machine?
有没有办法不在这台机器上运行Spring Scheduled任务? We thought of relying on the machine name, but dont want to introduce a check each time a task starts.
我们考虑过依赖机器名称,但不想在每次任务开始时都引入检查。 Any suggestions?
有什么建议?
With Spring 3.1 Profiles it will be really easy, but here is a way you can do it in Spring 3.0. 使用Spring 3.1 Profiles它会非常简单,但是这里有一种方法可以在Spring 3.0中实现。
In your context: 在您的上下文中:
<task:annotation-driven executor="taskExecutor" scheduler="configScheduler"/>
<task:scheduler id="taskScheduler"/>
<task:executor id="taskExecutor"/>
Use @Bean
to define configScheduler
, using a dummy scheduler if a system property noScheduler
is set. 如果设置了系统属性
noScheduler
则使用@Bean
定义configScheduler
,使用虚拟调度程序。
@Configuration
public class SchedulerConfig {
@Resource(name="taskScheduler")
ThreadPoolTaskScheduler taskScheduler;
@Bean
ThreadPoolTaskScheduler configScheduler() {
ThreadPoolTaskScheduler scheduler =
System.getProperty("noScheduler") == null : taskScheduler ?
new ThreadPoolTaskScheduler() {
@Override public ScheduledFuture schedule(Runnable task, Trigger trigger) { return null; } // Cron
@Override public ScheduledFuture scheduleAtFixedRate(Runnable task, long period) { return null; }
@Override public ScheduledFuture scheduleWithFixedDelay(Runnable task, long delay) { return null; }
};
return scheduler;
}
}
使用Spring 3.1,您将获得可能对您有所帮助的配置文件 。
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