If you cannot get the admins to provide your app with a near-infinite ticket lifetime, you need to instead loop the login process via a daemon thread, such as via this thread snippet as an example: private void runLoginAndRenewalThread(final Configuration conf) throws IOException { // Do a blocking login first SecurityUtil.login(conf, KEYTAB_CONF, KEYTAB_USER); // Spawn the relogin thread next Thread reloginThread = new Thread() { @Override public void run() { while (true) { try { SecurityUtil.login(conf, KEYTAB_CONF, KEYTAB_USER); Thread.sleep(ELEVEN_MINUTES); } catch (IOException e) { e.printStackTrace(); interrupt(); } catch (InterruptedException e) { e.printStackTrace(); interrupt(); } } } }; reloginThread.setDaemon(true); reloginThread.start(); }
... View more
