@Override public boolean start() { _executor.scheduleWithFixedDelay(new ExpungeTask(), _expungeInterval, _expungeInterval, TimeUnit.SECONDS); _vmIpFetchExecutor.scheduleWithFixedDelay(new VmIpFetchTask(), VmIpFetchWaitInterval.value(), VmIpFetchWaitInterval.value(), TimeUnit.SECONDS); loadVmDetailsInMapForExternalDhcpIp(); return true; }