profiler.start();
Profiler profilerQueryActiveList = new Profiler();
profilerQueryActiveList.start();
List<ManagementServerHostVO> currentList = _mshostDao.getActiveList(new Date(cutTime.getTime() - _heartbeatThreshold));
profilerQueryActiveList.stop();
Profiler profilerSyncClusterInfo = new Profiler();
profilerSyncClusterInfo.start();
List<ManagementServerHostVO> removedNodeList = new ArrayList<ManagementServerHostVO>();
List<ManagementServerHostVO> invalidatedNodeList = new ArrayList<ManagementServerHostVO>();