scheduExec.scheduleAtFixedRate(r1, monitor_freq_secs, monitor_freq_secs,TimeUnit.SECONDS);
//Schedule Nimbus inbox cleaner.����/nimbus/inbox�¹��ڵ�jar
String dir_location=StormConfig.masterInbox(conf);
int inbox_jar_expiration_secs=(Integer)conf.get(Config.NIMBUS_INBOX_JAR_EXPIRATION_SECS);
CleanRunnable r2 = new CleanRunnable(dir_location,inbox_jar_expiration_secs);
int cleanup_inbox_freq_secs = (Integer) conf.get(Config.NIMBUS_CLEANUP_INBOX_FREQ_SECS);
scheduExec.scheduleAtFixedRate(r2, cleanup_inbox_freq_secs, cleanup_inbox_freq_secs,TimeUnit.SECONDS);
//Thrift server���ü���������
Integer thrift_port = (Integer) conf.get(Config.NIMBUS_THRIFT_PORT);