Runtime.getRuntime().addShutdownHook(new ShutdownThread(config));
this.context = new BootStrapContext(config);
this.manager = new WorkManager(context);
this.coord = new ZKClusterCoordinator(config);
this.engine = new ServiceEngine(manager.getBitComWorker(), manager.getUserWorker(), context);
this.cache = new HazelCache(config);
}
}