NodeManager Source Reading Thread.setdefaultuncaughtexceptionhandler

NodeManager Source

Read the NodeManager source of the time to notice a very interesting Java code, as follows

  public static void Main (string[] args) throws IOException {
    Thread.setdefaultuncaughtexceptionhandler (new Yarnuncaughtexceptionhandler ());
    Stringutils.startupshutdownmessage (Nodemanager.class, args, LOG);
    NodeManager NodeManager = new NodeManager ();
    Configuration conf = new yarnconfiguration ();
    New Genericoptionsparser (conf, args);
    Nodemanager.initandstartnodemanager (conf, false);
  

Test

The following test comes from confirming whether the scenario will take effect under the multithreaded submission task. Because another article inside said executorservice.submit the scene does not take effect. But in fact it can still be effective.
Article referred to: http://blog.csdn.net/u013256816/article/details/50417822

public class Mydefaultuncaughtexceptionhandler {static Class Myuncauthexceptionhandler Impl
            Ements thread.uncaughtexceptionhandler{@Override public void uncaughtexception (Thread t, Throwable e) {
        System.out.println ("uncaughtexception:" + t.getname () + "" + e.getmessage ()); } public static void Main (String args[]) {Thread.setdefaultuncaughtexceptionhandler (new myuncauthexcept
        Ionhandler ());
        Executorservice es = Executors.newcachedthreadpool ();
            Es.execute (New Runnable () {@Override public void run () {int i = 2/0;
        }
        });
    Es.shutdown (); }
}