@RefreshScope stops @Scheduled task

Question

I have a monitoring app wherein I am running a fixedRate task. This is pulling in a config parameter configured with Consul. I want to pull in updated configuration, so I ad

Answer 1

I have done workaround for this kind of scenario by implementing SchedulingConfigurer interface. Here I am dynamically updating "scheduler.interval" property from external property file and scheduler is working fine even after actuator refresh as I am not using @RefreshScope anymore. Hope this might help you in your case also.

public class MySchedulerImpl implements SchedulingConfigurer {

    @Autowired
    private Environment env;

    @Bean(destroyMethod = "shutdown")
    public Executor taskExecutor() {
        return Executors.newScheduledThreadPool(10);
    }

    @Override
    public void configureTasks(final ScheduledTaskRegistrar taskRegistrar) {
        taskRegistrar.setScheduler(this.taskExecutor());
        taskRegistrar.addTriggerTask(() -> {
            //put your code here that to be scheduled
        }, triggerContext -> {
            final Calendar nextExecutionTime = new GregorianCalendar();
            final Date lastActualExecutionTime = triggerContext.lastActualExecutionTime();

            if (lastActualExecutionTime == null) {
                nextExecutionTime.setTime(new Date());
            } else {
                nextExecutionTime.setTime(lastActualExecutionTime);
                nextExecutionTime.add(Calendar.MILLISECOND, env.getProperty("scheduler.interval", Integer.class));
            }
            return nextExecutionTime.getTime();
        });
    }
}