stop Spring Scheduled execution if it hangs after some fixed time

Question

I have used Spring Framework\'s Scheduled to schedule my job to run at every 5 mins using cron. But sometime my job waits infinitely for an external resource an

Answer 1

allowCoreThreadTimeOut and timeout setting doesn't help cause it just allow work thread to be ended after some time without work (See javadocs)

You say your job waits infinitely for an external resource. I'am sure it's because you (or some third-party library you using) use sockets with time out infinite-by-default. Also keep in mind what jvm ignores Thread.interrupt() when it blocked on socket.connect/read.

So find out witch socket library used in your task (and how exactly it used) and change it's default timeout settings.

As example: there is RestTemplate widely used inside Spring (in rest client, in spring social, in spring security OAuth and so on). And there is ClientHttpRequestFactory implementation to create RestTemplate instances. By default, spring use SimpleClientHttpRequestFactory which use JDK sockets. And by default all it's timeouts are infinite.

So find out where exactly you freeze, read it's docs and configure it properly.

P.S. If you don't have enough time and "feeling lucky" try to run your app with setting jvm properties sun.net.client.defaultConnectTimeout and sun.net.client.defaultReadTimeout to some reasonable values (See docs for more details)