private void recoverClusterStatus(
int newViewId, final boolean isMergeView, final List<Address> clusterMembers)
throws Exception {
log.debugf("Recovering cluster status for view %d", newViewId);
ReplicableCommand command =
new CacheTopologyControlCommand(
null, CacheTopologyControlCommand.Type.GET_STATUS, transport.getAddress(), newViewId);
Map<Address, Object> statusResponses =
executeOnClusterSync(
command, getGlobalTimeout(), false, false, new CacheTopologyFilterReuser());
log.debugf("Got %d status responses. members are %s", statusResponses.size(), clusterMembers);
Map<String, Map<Address, CacheStatusResponse>> responsesByCache = new HashMap<>();
boolean recoveredRebalancingStatus = true;
for (Map.Entry<Address, Object> responseEntry : statusResponses.entrySet()) {
Address sender = responseEntry.getKey();
ManagerStatusResponse nodeStatus = (ManagerStatusResponse) responseEntry.getValue();
recoveredRebalancingStatus &= nodeStatus.isRebalancingEnabled();
for (Map.Entry<String, CacheStatusResponse> statusEntry : nodeStatus.getCaches().entrySet()) {
String cacheName = statusEntry.getKey();
Map<Address, CacheStatusResponse> cacheResponses = responsesByCache.get(cacheName);
if (cacheResponses == null) {
cacheResponses = new HashMap<>();
responsesByCache.put(cacheName, cacheResponses);
}
cacheResponses.put(sender, statusEntry.getValue());
}
}
globalRebalancingEnabled = recoveredRebalancingStatus;
// Compute the new consistent hashes on separate threads
int maxThreads = Runtime.getRuntime().availableProcessors() / 2 + 1;
CompletionService<Void> cs =
new SemaphoreCompletionService<>(asyncTransportExecutor, maxThreads);
for (final Map.Entry<String, Map<Address, CacheStatusResponse>> e :
responsesByCache.entrySet()) {
final ClusterCacheStatus cacheStatus = initCacheStatusIfAbsent(e.getKey());
cs.submit(
new Callable<Void>() {
@Override
public Void call() throws Exception {
cacheStatus.doMergePartitions(e.getValue(), clusterMembers, isMergeView);
return null;
}
});
}
for (int i = 0; i < responsesByCache.size(); i++) {
cs.take();
}
}
