@Override
public void uncaughtException(Thread t, Throwable e) {
LOG.info("UncaughtExceptionHandler invoked");
if (ShutdownHookManager.isShutdownInProgress()) {
LOG.warn("Thread {} threw a Throwable, but we are shutting down, so ignoring this", t, e);
} else if (e instanceof Error) {
try {
LOG.error("Thread {} threw an Error. Shutting down now...", t, e);
} catch (Throwable err) {
// We don't want to not exit because of an issue with logging
}
if (e instanceof OutOfMemoryError) {
// After catching an OOM java says it is undefined behavior, so don't
// even try to clean up or we can get stuck on shutdown.
try {
System.err.println("Halting due to Out Of Memory Error...");
e.printStackTrace();
} catch (Throwable err) {
// Again we done want to exit because of logging issues.
}
ExitUtil.halt(-1);
} else {
ExitUtil.terminate(-1);
}
} else {
LOG.error("Thread {} threw an Exception. Shutting down now...", t, e);
ExitUtil.terminate(-1);
}
}
@Before
public void setup() {
Logger rootLogger = LogManager.getRootLogger();
rootLogger.setLevel(Level.DEBUG);
ExitUtil.disableSystemExit();
conf = new YarnConfiguration();
UserGroupInformation.setConfiguration(conf);
conf.set(YarnConfiguration.RM_STORE, MemoryRMStateStore.class.getName());
conf.set(YarnConfiguration.RM_SCHEDULER, FairScheduler.class.getName());
}
/** @param args Command line args */
public static void main(String[] args) {
boolean result = false;
try {
ApplicationMaster appMaster = new ApplicationMaster();
LOG.info("Initializing ApplicationMaster");
boolean doRun = appMaster.init(args);
if (!doRun) {
System.exit(0);
}
appMaster.run();
result = appMaster.finish();
} catch (Throwable t) {
LOG.fatal("Error running ApplicationMaster", t);
LogManager.shutdown();
ExitUtil.terminate(1, t);
}
if (result) {
LOG.info("Application Master completed successfully. exiting");
System.exit(0);
} else {
LOG.info("Application Master failed. exiting");
System.exit(2);
}
}