@Override
public void run(ImmutableMap<Integer, Long> cache) {
// Every MPI change means a new single MPI. Just do the right thing here
int pid = MpInitiator.MP_INIT_PID;
// Can be zero-length at startup
if (cache.size() > 0) {
sendLeaderChangeNotify(cache.get(pid), pid);
}
}
@Override
public void run(ImmutableMap<Integer, Long> cache) {
// We know there's a 1:1 mapping between partitions and HSIds in this map.
// let's flip it
Map<Long, Integer> hsIdToPart = new HashMap<Long, Integer>();
for (Entry<Integer, Long> e : cache.entrySet()) {
hsIdToPart.put(e.getValue(), e.getKey());
}
Set<Long> newMasters = new HashSet<Long>();
newMasters.addAll(cache.values());
// we want to see items which are present in the new map but not in the old,
// these are newly promoted SPIs
newMasters.removeAll(m_currentSPMasters);
// send the messages indicating promotion from here for each new master
for (long newMaster : newMasters) {
sendLeaderChangeNotify(newMaster, hsIdToPart.get(newMaster));
}
m_currentSPMasters.clear();
m_currentSPMasters.addAll(cache.values());
}
