What is the default scheduler pool size in spring-boot?

Question

I\'m using spring-boot and @Scheduled annotation to execute some tasks.

How can I find out what the default pool size of scheduled tasks is

Answer 1

The default scheduler pool size in spring-boot is only one.

In org.springframework.scheduling.config.ScheduledTaskRegistrar:

    /**
     * Schedule all registered tasks against the underlying
     * {@linkplain #setTaskScheduler(TaskScheduler) task scheduler}.
     */
    @SuppressWarnings("deprecation")
    protected void scheduleTasks() {
        if (this.taskScheduler == null) {
            this.localExecutor = Executors.newSingleThreadScheduledExecutor();
            this.taskScheduler = new ConcurrentTaskScheduler(this.localExecutor);
        }
        ...
    }