List<LbaasMappingData> add = Lists.newArrayList();
Map<Long, LbaasMappingData> remove = Maps.newHashMap(dbMap);
for (LbaasMappingData mapping : requests) {
LbaasMappingData db = rawToDbMap.get(mapping);
if (db == null) {
add.add(mapping);
} else {
remove.remove(db.getId());
}
}
Set<String> dirtyHosts = Sets.newHashSet();