}
public boolean refresh(HelixDataAccessor accessor)
{
Builder keyBuilder = accessor.keyBuilder();
_liveInstanceMap = accessor.getChildValuesMap(keyBuilder.liveInstances());
Map<String, Map<String, HealthStat>> hsMap = new HashMap<String, Map<String, HealthStat>>();
for (String instanceName : _liveInstanceMap.keySet())
{