Spring 开机优雅关机超时回调

Question

I created a simple spring boot application with graceful shutdown functionality by adding the following to the properties file:

server.shutdown=graceful
spring.lifecycle.timeout-per-shutdown-phase=1m

It works as expected.
However, I would like to log information when the timeout expires before the running tasks were completed.
Is there a way to do this?

Answer 1

Looking at DefaultLifecycleProcessor.LifecycleGroup which is using spring.lifecycle.timeout-per-shutdown-phase , if Spring fails to shutdown beans in specified time, then it'll log it:

if (latch.getCount() > 0 && !countDownBeanNames.isEmpty() && logger.isInfoEnabled()) {
    logger.info("Failed to shut down " + countDownBeanNames.size() + " bean" +
        (countDownBeanNames.size() > 1 ? "s" : "") + " with phase value " +
        this.phase + " within timeout of " + this.timeout + "ms: " + countDownBeanNames);
}

If you want customised implementation, you can look into implementing your own LifecycleProcessor .